eChapters

8.1 Disease Prevention and Control in Aquaculture

Aquaculture, the farming of aquatic organisms such as fish, shellfish, and plants, faces significant challenges related to disease management. Diseases in aquaculture can result from viral, bacterial, fungal, or parasitic pathogens, and their outbreaks can lead to substantial economic losses and environmental impacts. Effective disease prevention and control strategies are crucial to sustainably manage aquaculture operations and ensure the health and welfare of cultured species.

Key Strategies for Disease Prevention and Control

1. Biosecurity Measures

Biosecurity is foundational in preventing the introduction and spread of diseases within aquaculture facilities. It involves a set of management practices aimed at minimizing the risk of pathogen transmission through various pathways:

• Quarantine Protocols: New stocks should undergo quarantine periods before introduction to production systems. This allows for health screening and observation to detect and isolate potentially diseased individuals.

Key Points

• Dogs can be fed a wide variety of chocolate and cocoa-based goods, particularly during holiday seasons, such as candy, cakes, cookies, brownies, and chocolate chips.

• Dogs that eat chocolate usually become very sick, but they also seldom die from it.

Introduction

Caffeine and theobromine are found in chocolate. Dogs' metabolisms of caffeine and theobromine differ from humans'. Because they contain more theobromine and caffeine, darker, bitter chocolates are considered to be more dangerous.

When a dog consumes too much chocolate goods, it can lead to major health problems like seizures, heart failure, and muscular tremors. In extreme situations, the dog may even pass away from cardiac or respiratory failure. Due to the fat and sugar content, it induces vomiting and diarrhoea even in non-toxic doses. Numerous substances found in chocolate are hazardous to animals. Although chocolate poisoning can affect a wide variety of animal species, including dogs, cats, horses, and rodents, it most frequently affects dogs. Theobromine and caffeine are the main harmful ingredients in chocolate. The amount of caffeine and theobromine in chocolate varies with kind. Dogs' metabolism of theobromine and caffeine differs from that of humans. Dogs are more sensitive because of this. Dogs who consume chocolate may become seriously unwell, even though it rarely results in death. When a dog eats too many chocolate-containing foods, such as cakes, cookies, brownies, candies, and chocolate chips, it might become poisoned.

Food Contact Materials (FCM)

Before food consumption, during production, processing, preparation, packaging, packing, transportation, storage, serving etc. food comes in contact o many materials, all these materials are called food contact materials (FCM). FCM may be containers used for transportation for example milk container, machineries for its production or processing, packaging materials for its packaging like cans of soft drinks, kitchenware used for its cooking, serving, heating, washing. The selection of FCM requires intense care because FCM can affect human health and also the quality of food. During contact with food, molecules can migrate from FCM to food. Hence, FCM should have the following common attributes:

1. FCM should be compatible with the materials used for production, processing, transport, storage, serving etc.

2. FCM should be inert and non-reactive.

3. FCM should withstand the chemical, Mechanical and Thermal variations.

4. FCM should be clean, hygienic and tamper proof.

5. FCM should not have blisters, cracks, sharp edges and visible defects. 6. FCM should be free from rust.

India’s journey through the 75 years of independence and its splendid achievements are acclaimed by the Government of India through its initiative, Azadi Ka Amrit Mahotsav. Since independence, the nation has traversed a great distance and achieved feats in various spheres, such as agriculture, science, technology, art and culture, to name a few. Azadi Ka Amrit Mahotsav commemorates 75 glorious years of progressive India and its rich history, diverse population, magnificent culture and great achievements. The Hon’ble Prime Minister of India, Shri Narendra Modi’s, through this campaign, envisioned the foundation of a self-reliant India, and he said, “The Azadi Ka Amrit Mahotsav means elixir of energy of independence; elixir of inspirations of the warriors of freedom struggle; elixir of new ideas and pledges; and elixir of Aatmanir bharta. Therefore, this Mahotsav is a festival of awakening the nation a festival of fulfilling the dream of good governance, and a festival of global peace and development”

1 . The government of India, to celebrate the 75th anniversary of India’s independence, organised a series of events under the campaign Azadi Ka Amrit Mahotsav. 

1. Introduction

Aquaculture is a thriving industry that contributes significantly to the economy by creating employment, sustenance, and nutrition owing to diverse resources and possibilities. Aquaculture is experiencing rapid growth as the swiftest food production sector is expanding, with an annual increase exceeding 8%. Fish production reached an estimated level of 16.25 million metric tons (MMT) (MPEDA). In the dynamic realm of aquaculture, the application of fish therapeutics is important for maintaining the health and productivity of fish populations. As the industry strives to meet the escalating global demand for seafood, understanding the nuances of fish therapeutics is crucial. This article explores the diverse techniques employed in fish health management, delving into their applications and advantages while simultaneously addressing the inherent limitations that pose challenges to sustainable aquaculture practices. Navigating through these complexities is essential to forge a path towards effective, ethical, and environmentally responsible fish therapeutics in the ever-evolving landscape of aquaculture.

1. Introduction

Since the 1980s, the aquaculture industry has boomed due to growing market needs and limited natural harvesting options. To meet demand, high-density f ish farming methods have become popular, but overcrowding can stress fish, making them prone to diseases. The implications of diseases in aquaculture extend beyond mere mortality and morbidity, encompassing poor growth rates, inferior flesh quality, and diminished profit margins. Consequently, a critical imperative arises to implement preventive and therapeutic measures. Traditionally, chemotherapeutic agents, including antibiotics and disinfectants, have been employed for the treatment and prevention of various diseases in farmed fish. Nonetheless, their indiscriminate and continuous use raises concern, as it may foster the development of antibiotic-resistant bacteria, contribute to environmental pollution, and result in the presence of chemical residues in fish products. The existence of antimicrobial residues in food has garnered attention from the scientific community, given the associated risks to food safety and public health. These risks encompass not only antibiotic resistance (AMR) but also potential issues related to severe allergic reactions, carcinogenicity, renal dysfunction, mutagenicity, developmental toxicity, bone marrow depression, and disruption of the normal gut microbiota. Consequently, a reevaluation of preventive and therapeutic strategies in aquaculture is imperative to ensure sustainable practices without compromising human health (Bondad, Reantaso et al., 2023). The unregulated utilization of antimicrobial agents in aquaculture poses potential risks to human health. Consequently, several countries have implemented prohibitions on specific chemotherapeutics and are reluctant to import aquaculture products treated with antibiotics and chemicals. In response to these concerns, researchers have intensified their endeavors to explore natural alternatives for developing dietary supplements that can promote the growth performance, health, and immune system of cultured fish. In this context, the utilization of herbs emerges as a promising solution (Syahidah et al., 2015).

The Indian arid zone is one of the largest subtropical deserts in the world, of which 20% is arid and the rest is semi-arid. A hot arid zone is spread over 31.7 million ha and confined to Rajasthan, Gujarat, Andhra Pradesh, Punjab, and Haryana. The major part of the hot arid region of the country lies in western Rajasthan (19.62 million ha), followed by north-western Gujarat (2.16 million ha). It is characterized by a high aridity index, extremes of temperature, low and variable precipitation, very high wind velocity and dust storms, high soil pH, a high infiltration rate, and minimal availability of groundwater and saline ground irrigation water. Under such harsh climatic conditions, cultivating vegetable crops in open conditions results in meager and poor-quality yield, which fetches less return per unit area. By creating a suitable microclimate for plant growth throughout the year, vegetables can be cultivated under adverse climatic conditions. It is possible through protected cultivation, which has tremendous scope in peri-urban areas of the country. It is the best way to increase the productivity and quality of vegetables, especially cucurbits. India is the world’s second-largest producer of vegetables, next only to China.

Background

Water is the most precious input for dryland horticulture, and therefore, its use should be planned judiciously. Rainwater harvesting and its management play a significant role in horticultural production. The rainwater can be diverted either directly to tree basins in situ or in suitable structures ex situ, which can later be utilized as lifesaving irrigation. In sandy soils, in situ conservation should be popularized, while in heavier soils, ex-situ conservation should be popularized. The water thus collected remains stored deep into the soil profile, escapes from evaporative losses, and is available during critical periods of demand. Perennial fruit trees, once established, get the advantage of any time it rains during the year, unlike annual crops. Water harvesting in khadins in parts of the Jaisalmer district of Rajasthan and its use in raising crops and trees is the age-old practice of in situ water harvesting. The hilly, rocky, and sloppy lands generate runoff, which can be collected in ponds or tanks and recycled for the establishment of fruit plantations and lifesaving irrigation at critical stages. In the same stance, nutrient management also plays an important role in the successful cultivation of horticultural crops under dryland. The arid zone soils are very poor in the majority of nutrients except potash. Enrichment of soil with organic and inorganic sources is essential for optimum production of fruits and vegetables. The application of chemical fertilizers has made miracles initially in agriculture and horticulture. However, increasing awareness of environmental degradation due to various anthropogenic activities has been expressed worldwide about the over-reliance on mineral fertilizers, which causes environmental penalties. It has also led to a deficiency of several micronutrients. Therefore, the option left is whether to revert back to traditional farming using organic input or to follow some middle path by integrating both organic and inorganic. So far as present knowledge is concerned, organic manuring alone cannot maintain the required productivity and demand for food.

Introduction

Date palm (Phoenix dactylifera L.) is a monocotyledonous and dieocious species belonging to the family Palmae. The Latin name of the date palm, Phoenix dactylifera, is derived from the Phoenician name “Phoenix,” which means date palm, and dactylifera is derived from the Greek word “daktulos,” which means a finger. In India, generally, two species of Phoenix are found, of which, Phoenix sylvestris Roxb. called “desi khajoor,” is found throughout the country but t produces inferior quality fruits. The fruit contains large stones with less pulp content.

Date palm is considered one of the world’s oldest cultivated fruit trees. Archeological evidence suggests that the date palm was domesticated some 6000 years ago in the Mesopotamian region. It is widely cultivated in arid regions of the Middle East and North Africa. It is also one of the most appropriate fruit trees, and it can be easily grown under saline soil and water conditions. It grows well in poor, arid soils due to its hardy plant characteristics and deep root system. Date palm is believed to be indigenous to countries around the Persian Gulf. In the Indus Valley, date palm is believed to have been introduced by the soldiers of Alexander the Great in the fourth century B.C. and during the Muslim invasions at the beginning of the eight century AD. Date palm was commercially cultivated in Iraq, Saudi Arabia, Algeria, Iran, Egypt, Morocco, Tunisia, Pakistan, and Sudan, among many other Near East and North African countries. In India, dates are grown in the states of Gujarat, Rajasthan, Punjab, Haryana, and Tamil Nadu (Table 1).

Introduction

Pomegranate (Punica granatum L.) is an important fruit crop in arid and semi arid regions. In India, it is grown commercially in Maharashtra, Gujarat, Karnataka, Andhra Pradesh, Telangana, Tamil Nadu, Madhya Pradesh, and Rajasthan. India is one of the largest producers of pomegranate in the world. During 2020–2021, pomegranate was cultivated over 2.71 lakh ha with an annual production of 30.88 lakh tonnes and a productivity of 11.39 tonnes/ ha in India. Maharashtra is the leading state, with 63% of the area and 62% of total production. In India, pomegranate is available throughout the year (January–December). India has the largest area of pomegranate cultivation globally.

Pomegranate can tolerate heat, drought, and moisture deficit. The area under pomegranate cultivation in India is increasing daily due to its high demand, hardy nature, low cost of cultivation, high yields, better storage quality, and therapeutic values. It has enormous medicinal and nutritional value and is one of the richest sources of antioxidants. Several processed products such as juices, squash, jelly, anardana, and mouth fresheners are prepared by fruit processing. The fruit is mainly used as an ingredient in cooling and refrigerant mixtures and in the preparation of juice, concentrates, condiments, and pastes. The juice is highly nutritious and is recommended for patients suffering from gastric troubles. It contains 16.5% TSS and 0.33% acidity; total sugars, 13.93; reducing sugars, 13.60 and non-reducing sugars, 0.33%; and 9.27 mg/100 g ascorbic acid.

Seed is the basis of agriculture. It is the cheapest and most critical input for sustainable crop production. The response of all other inputs depends upon the quality of the seed to a large extent. The direct contribution of quality seed alone to crop production is about 15 to 20%, and it can be further raised to 45% with improved crop management practices. Quality seed ensures good germination and vigorous growth, resulting in a good crop stand. The Green Revolution witnessed in the country during the mid-sixties resulted from the seed revolution in wheat and rice. After that, there was a consistent increase and record production in food grains, oilseeds, pulses, and all other crops, including fruits and vegetables, due to the development of high-yielding varieties.

The seed itself is a technology that is inherited in a capsulated form. Therefore, the seed sector plays an essential role in disseminating the most recent technology to farmers through the quality seed of high-yielding varieties. The success of any developmental program in agriculture, like NFSM, RKVY, oilseed mission, horticulture mission, etc., depends upon the availability of good quality seed and planting material. Seed security is a prerequisite for food and nutritional security. Therefore, recognizing the facts, many emphases are being given to seed replacement and varietal replacement rates. The growth of the Indian seed industry is faster than the global rate.

The National Bureau of Plant Genetic Resources (ICAR-NBPGR) was established in 1976 in New Delhi by the Indian Council of Agricultural Research (ICAR). The mandate of the Bureau was to act as a nodal institute for the acquisition and management of indigenous and exotic plant genetic resources (PGR) for agriculture and to carry out related research and human resources development for sustainable growth of agriculture. As we know our country is a mega-diverse country with 2.4% of the land area, accounting for 7.8% of the recorded species of the world spread over 45,968 (11.18% of world) species of plants and 91,212 species of animals (7.43% of the world) that were documented in its 10 bio-geographic regions. India shares four biodiversity hotspots, namely Western Ghats and Sri Lanka, the Himalayas, Indo-Burma, and Sundaland, and one third of our species of higher plants are endemic. Out of 45,968 plant species, 5150 are endemic and distributed in 141 genera under 47 families, corresponding to about 30% of the world’s recorded flora, which means 30% of the world’s recorded flora is endemic to India. The plant genetic resources are fundamental to human welfare and their effective management is a crucial for conservation of genetic variability. As of today, ICAR-National Bureau of Plant Genetic Resources (ICAR-NBPGR), New Delhi, India has conserved about 4.6 lakh accessions of 1900 species in its gene bank, and about 6900 accessions of intermediate species have been conserved in cryobank. The Bureau not only conserve PGR safely to meet the needs of future generations but also provides these to the nation’s crop improvement programs to sustain continued advances in agricultural productivity and stabilize production. ICAR-NBPGR is the nodal agency for import and export of all PGR for research purpose, adhering to guidelines of National Biodiversity Act, 2002.

Introduction

Cherry is a fleshy fruit of stone, it occupies a prominent position among the temperate fruit grown commercially all over the world. Cherry belongs to the genus prunus and the family Rosaceae. Other stone fruits such as plum, peach, almond, apricot also come under the genus prunus. The cultivated cherries are divided into two main group sweet cherries (Prunus avium) are mainly cultivated for table purpose and are consumed as fresh fruits (Fig. 1) , sour cherry (Prunus cerasus), is mainly cultivated for processing purpose which is a cross of Prunus avium × Prunus fruticosa. Somatic chromosome number of sweet cherry is 2n=16 and somatic chromosome number of sour cheery is 2n=32. Cherry requires highest chilling hours among the temperate fruits with 2000 to 2700 hours. In India cherry is commercially grown in Kashmir valley and other adjoining regions with an area of around 1,110 ha. With and annual production of around 605 MT (Bal, 1997). In these areas the span of winter is wide and very much pronounced and according to Food and Agriculture Organization Corporate Statistical Database (Anon. 2022) Turkey is largest producer of cherry in the world, around 42% of world production originated in Turkey, and around 14% production in the United States. Among the temperate fruit cherry comes first in the market. The primary center of origin is supposed to be the Caspian and Black sea region from where it has been spread throughout the world (Oz., 2013). The earliest records indicate that it was first domesticated in Greece around 300 BC. It spread to Italy from Greece where it was established as a fruit crop by 37 BC. In India, it was introduced by Britishers in Kashmir, Kullu and Shimla hills during pre-independence era. At present European countries are growing cherries on large scales for table purpose and also for processing.

Introduction

It is carried out by 15 centres that are members of the CGIAR Consortium, in close collaboration with hundreds of partners, including national and regional research institutes, civil society organizations, academia, development organizations, and the private sector.

History

It was formed in response to the widespread concern in the mid-20th century that rapid increase in human populations would soon lead to widespread famine. The Rockefeller Foundation and the Mexican government, in 1943 laid the seeds for the Green Revolution when they established the Office of Special Studies, which led to establishment of the International Rice Research Institute (IRRI) in 1960 and International Maize and Wheat Improvement Centre (CIMMYT) in 1963. However, these foundations alone could not fund all the agricultural research and development efforts needed to feed the world’s population. In 1969, the Pearson Commission on International Development urged the international community to undertake “intensive international effort” to support “research specializing in food supplies and tropical agriculture”. Thus, with the support of World Bank, FAO and UNDP, CGIAR was established on May 19, 1971, to coordinate international agricultural research efforts aimed at reducing poverty and achieving food security in developing countries

Introduction

Integrated Pest Management (IPM) represents a holistic approach to managing pest populations in horticultural crops, aiming to minimize the use of chemical pesticides while ensuring sustainable and economically viable crop production. IPM integrates multiple strategies—cultural, biological, mechanical, and chemical—within a coordinated framework, emphasizing ecological balance and long-term pest suppression. This article provides a comprehensive overview of IPM principles, methodologies, and applications in horticultural crops, addressing the ecological, economic, and regulatory dimensions of this essential agricultural practice.

Principles of IPM

Ecological Approach

IPM is fundamentally an ecological approach that considers the complex interactions between pests, crops, and the environment. By understanding these interactions, IPM seeks to manipulate ecosystems to favour natural pest control mechanisms and reduce the need for synthetic chemical inputs.

Integrated Disease Management (IDM) in horticultural crops is a multifaceted approach aimed at mitigating the impact of plant diseases while ensuring sustainable production systems. Recognizing the complex interactions between pathogens, plants, and the environment, IDM integrates various control measures, including cultural, biological, chemical, and genetic strategies. Cultural practices such as crop rotation, proper sanitation, and selection of disease-resistant cultivars form the foundation of IDM, reducing disease pressure and creating unfavourable conditions for pathogen development. Biological control agents, including beneficial microbes and natural enemies of plant pathogens, play a crucial role in regulating disease populations and promoting plant health. Chemical interventions, when necessary, are judiciously applied and integrated with other strategies to minimize environmental impact and preserve beneficial organisms. Advances in molecular genetics have also contributed to IDM through the development of disease-resistant crop varieties with enhanced genetic resistance to specific pathogens. Overall, IDM offers a holistic and sustainable approach to disease management in horticultural crops, emphasizing proactive measures to prevent disease outbreaks and minimize the need for reactive interventions. Continued research, education, and collaboration among stakeholders are essential for advancing IDM practices and ensuring their effective implementation in horticultural production systems.

Mutation: Natural genetic variation has exhausted. Genetic variation can be induced by mutations or changes in the DNA sequences of the plants.

Additional Tools for Plant Improvement

Increase in yield with no additional lands available for cultivation depends on development of high yielding varieties suitable for marginal cultivation.

• Food security

• Nutritional security

Need for additional tools to increase efficiency of breeding methods for genetic enhancement and propagation.

• Genomics

Genomics – Definition

Genomics - Study of an organism's entire genome / full genetic complement of an organism.

Meristematic Tissues

These are composed of cells that are in state of division or retain the power of dividing. These cells are essentially alike and isodiametric. They may be spherical, oval or polygonal and their walls thin and homogeneous; the protoplasm in them abundant and active with large nuclei, and the vacuoles small or absent.

Classification of Meristems

Meristems are classified in different ways on the basis of certain factors.

A) According to their origin and development

1. Promeristem or primordial meristem

2. Primary meristem and

3. Secondary meristem.

3.1. Introduction

Food preservation can be defined as the science which deals with the process of prevention of decay or spoilage of food thus allowing it to be stored in a safe condition for future use. Scientifically, preservation may be defined as a science which deals with the process for prevention of decay. All foods gradually undergo deterioration or spoilage from the time they are harvested or manufactured. Some commodities spoil rapidly, while others can keep for longer but limited periods. Spoilage in the food products may be caused due to some physical, chemical and microbial changes during storage. The preservation of these products can be resulted by controlling following physical, chemical and microbial changes.

5.1. Introduction

Food processing units range from home-based businesses to large-scale processing plants. The food processing sector is a highly fragmented industry which includes fruit, vegetables, dried, preserved, canned, pulps, pickles, chutneys, milk, dairy products, ready-to-serve products, frozen desserts, meat, poultry, marine products, grain processing, beer and alcoholic beverages, consumer, convenience and packaged food, soft drinks etc.

The main objective of fruit and vegetable processing is to supply wholesome, safe, nutritious and acceptable food to consumer throughout the year. Fruit and vegetable processing also aim to replace import of products such as squashes, jams, tomato sauces, pickles, etc., besides earning foreign exchange by exporting finished or semi-processed products. The fruit and vegetable processing industries are also established in the developing countries due to following reasons:

• Reduction in fruits and vegetables post harvest losses

• Industrialization policy of the government

• Generate both rural and urban employment

• Improve farmer s nutrition by self consumption of processed fruits and vegetables during off season

6.1. Introduction

Chemical preservatives are those substances which minute organoleptic and physico-chemical properties . Preservation of food products with chemical preservatives is usually based on the combined or synergistic activity of several additives, intrinsic product parameters (e.g. composition, acidity, water activity) and extrinsic factors (e.g. processing and storage temperature).

Many chemical substances are added to the food for functional purposes and are called as additives and in many cases these are found to occur naturally in some foods. An additive is defined as a substance or mixture of substances other than basic food ingredient present in a food as a result of any aspect of production, processing or packaging.

17.1. Introduction

Tea (Camellia sinensis L), coffee (Coffea arabica L.) and rubber (Hevea brasiliensis) are known as estate crops or conventional plantation crops. These plantation crops are perennial in nature and cultivation of these crops generates considerable employment opportunities during on farm and off farm processing activities. The plantation crops are high value industrial crops contributing about 25% of AGDP. India is a largest consumer of tea accounts for 22% global tea consumption and also accounts for one-fifth of global tea area. Indian coffee industry also have prime place among plantation crops and also contributing 4% coffee to global market. Similarly, rubber plantations also provides basic raw material to toys, balloon, tyres, seed oil cake and rubber wood factory. The plantation crops along with main processed products also produce large quantity of biomass like husk, coir dust, coffee husk, tea waste, shedding etc which can effectively used to reduce nutrient requirements of crops. Parchment coffee prepared by using the wet method is generally favoured by the market. Cherry coffee, due to its very nature of preparation and longer contact with the mucilage and fruit skin, is usually associated with a characteristic fermenting flavour.

18.1. Introduction

Spoiled food is defined as the food that has been damaged or has undergone changes so as to render it undesirable/unacceptable/unfit for human consumption. Spoilage of processed products is mainly caused by the action of micro-organisms and due to the physical or chemical changes. The reasons for microbial spoilage include under- processing, inadequate cooling, contamination from leakage through can seams and pre-process spoilage. In under-processed cans (receiving low heat treatment) large number of micro-organisms is expected to be involved in spoilage.

18.2. Causes of food spoilage

Food spoilage or deterioration may be described as loss of weight, softening, souring, rotting, wilting, moulding or a combination of one or more forms. The major causes of food deterioration are: biotic and abiotic factors.

Introduction

Land capability classification is one of the very important issues in terms of sustainable land use. Land is the most valuable natural resource which needs to be harnessed according to its potential. Land use planning and management is a known strategy for achieving sustainable development. A properly prepared land use plan based on sound scientific and technical procedures, and land utilization strategies can summarize rationally the future demands. This accompanied by a strong planning process, where communities and various stakeholders are involved, can strengthen the decision making process on allocation and utilization of land resources. Land capability is referred as suitability of the land based on inherent characteristics of the soil associated land features, and climatic conditions that limit their safe use under agriculture, forestry etc. Land capability classification is a system of grouping soils primarily on the basis of their capability to produce common cultivated crops and pasture plants without deteriorating over a long period of time. The capability classification is one of a number of interpretive groupings of soils made primarily for agricultural purposes, mainly based on the inherent soil characteristics, external land features and climatic factors that limit the use of land for agricultural purposes. The land capability is governed by the different land attributes such as the type of soil, its depth and texture, underlying geology, topography, hydrology, etc. It also includes soil irrigation classes and ground water table position to decide overall suitability of lands for sustained use under irrigation. The classification points out automatically the possibilities and limitations of the climate and soil for each crop and type of agriculture.

India is one of the unique countries in the world with great diversity in climate. The annual rainfall varies from about 180 mm in North western part of India to almost 11,777 mm at Cherrapunji in Meghalaya. For a considerable amount of time, Cherrapunji had occupied the position of wettest place in India. However, off late, observations revealed that it is Mawsynram which receives the maximum amount of annual rainfall. Hence, Mawsynram with 11,872 mm annual rainfall is the wettest place in India. Both the places-Mawsynram and Cherrapunji-are located within 16 kilometers from each other in the East Khasi Hills district of Meghalaya. The maximum temperature at Churu in western Rajasthan is 50ºC and the lowest minimum temperature at Leh in Ladakh region is as low as -35ºC. In view of such great diversity in the distribution of rainfall and temperature in the country, it is necessary to have clear understanding on regional, seasonal and diurnal variation in different weather parameters (Fig. 13.1).

Agroforestry systems are not simply systems where trees and crops or animals give useful products to the farmers, rather systems where trees and crops and/ or animals interact. Interaction literally means influence or mutual or reciprocal action. So, component interaction refers to the influence of one component of a system on the performance of other component as well as the system as a whole.

In agroforestry systems, trees are grown in close proximity to crops and pasture. Their performance would largely depend on their ability to share various growth resources in a given environmental situation. Various interactions take place between the woody trees and herbaceous plants (crops or pastures) which is referred to as tree-crop interface. These interactions take place through the media of soil and microclimate and may exert favourable or adverse effects on the crop. Study of interaction helps to know how the components of agroforestry utilize and share the resources of the environment, and how the growth and development of any of the components will influence the others. Interaction occurs both above and below the ground and includes a complex set of interactions relating to radiation exchange, the water balance, nutrient budget and cycling, shelter and other microclimatic modifications.

Ecology of a place is influenced by a number of biotic and abiotic factors. An agroecological zone is broadly homogeneous in climatic and edaphic factors, but not necessarily contiguous, where a specific crop exhibits roughly the same biological expression. On the other hand, the characteristics of an agroecological zone influence the crops and cropping patterns of the zone. Thus, there are considerable variations in the types and management practices of agroforestry systems being followed in different agroecological zones.

AGROFORESTRY FOR HUMID AND SUBHUMID TROPICS

Humid and subhumid tropical regions have much variation in biological, social and economic parameters. The characteristics of humid tropics include high mean annual rainfall of more than 1500 mm, dry season of less than four months in a year and mean annual temperature of more than 22°C. Rainfall usually exceeds the evapotranspiration. However, demographic pressure has caused excessive deforestation and overgrazing which developed soil related problems like low soil fertility, low organic matter, high acidity and high rainfall erosivity. The agroforestry practices designed for this region should aim for improved fallows, soil fertility improvement and conservation, food production, etc. Thus, the common agroforestry systems in this zone are taungya, homegardens, alley cropping, plantation-crop combination, windbreaks, silvipastoral systems and various intercropping systems. Shifting cultivation is a common practice in tropics which should be discouraged as it causes environmental degradation and ecological imbalance, soil erosion and soil nutrient loss.

Trichoderma is fungus is well adapted to different ecosystem and identified > 250 species for agricultural use. It is primarily used as a bio-fungicide because of the variety of secondary metabolites produced and applied mainly for biocontrol and bioremediation and growth promotion activities. Bio-control potential of Trichoderma used for the control of soil borne diseases through various mechanisms responsible for broad range of cell wall degrading enzymes, anti-microbial and organic volatile compounds produced by Trichoderma. During abiotic stress, Trichoderma play an important role in plant growth promotion through mobilization of various nutrients. Presently Trichoderma is used as an effective biocontrol agent against plant parasitic nematodes. It is also used for one of the alternate remedy for improving the quality of the soil by removing the heavy metal in agricultural field, makes them suitable for cultivation.

1. Introduction

Trichoderma is one of the genus of fungus species which belongs to Ascomycetes (Order Hypocreales) present in diverse soil ecosystems, colonise under various agro ecological niches and most of the prevalent are culturable microorganism. They are primarily used as efficient biocontrol agents against a variety of soil-borne plant diseases. However, they have also shown potential in processes like bioremediation, promoting plant growth, and managing nematode populations.

6.1 Introduction

Plum is one of the important and widely cultivated fruit crops of temperate regions of the world. It occupies a unique position amongst the stone fruits in world fruit production and ranks next to peaches in economic importance. Plums are the most taxonomically diverse stone fruits which belongs to genus Prunus of sub-family Prunoideae and family Rosaceae (Potter et al., 2007). There are about 42 species of plum but the cultivated plums are derived from two species namely Prunus domestica (European plum) and Prunus salicina (Japanese plum). The Japanese plums are widely grown in the country whereas the European plums are grown only on a limited scale. The European plums are most often produced for the dried fruit market particularly in France and California, where it is called prune and dried plum, respectively. In the recent past some prunes have been introduced for fresh market in Himachal Pradesh. These prunes are sold fresh like plums and have become quite popular.

1. Introduction

Universal development through Education for all had been a prominent feature earlier during Millennium Development Goals and recently it has gained a fresh momentum when United Nations General Assembly set 17 inspirational Sustainable development Goals. Quality Education is the focus of SDG 4, “Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all” (Sustainable Development Goals, 2023). Role of education in achieving these sustainable development goals in developing countries is well recognized by OECD. OECD in its report on ‘Education at a Glance 2013’ states that “Educational attainment is frequently used as a measure of human capital and the level of an Individual’s skills. The level of educational attainment is the percentage of population that has reached a certain level of education. Higher levels of educational attainment are strongly associated with higher employment rates” (OECD, 2013). Furthermore, OECD in its report published in 2017 explains that “Making SDG 4 a reality will transform lives around the globe. Education is so central to the achievement of a sustainable, prosperous, and equitable planet that failure to achieve this particular SDG puts at risk the achievement of the 17 SDGs as a Whole” (OECD, 2017).

1. Introduction

The library, often perceived as a tranquil oasis, can be a hotbed of emotions. Behind the scenes, library employees and patrons alike struggle to manage their emotions, and anger can be a particularly pervasive and destructive force. The pressure to meet deadlines, the stress of dealing with difficult patrons, and the frustration of working with outdated technology can all contribute to a simmering sense of anger and resentment. But anger is not just a personal problem, it can have far-reaching consequences for the library as a whole. Unchecked anger can lead to decreased productivity, strained relationships, and even violence. It can also create a toxic work environment, driving away talented employees and eroding the trust of the community. Despite the importance of anger management, it is often overlooked in library training and professional development. Library employees are frequently expected to manage their emotions without being given the tools or support to do so. This can lead to a culture of silence, where employees suffer in silence, afraid to speak out about their struggles with anger.

1. Introduction

In the era of digital technology, libraries have expanded their role beyond their initial role as storage facilities for physical material. Libraries have become essential in providing access to electronic resources and promoting lifelong learning due to the emergence of e-learning. E-learning refers to the use of digital technology to access learning materials outside of a traditional classroom setting. E-learning is emerging as a powerful influence in higher education, with a presence on nearly every campus and a growing number of college and university courses. The environment is characterized by growth and dynamism, where fluidity and change are the social, institutional, and technological norms (Mishra & Gupta 2019).

Technology has revolutionized education, turning it into e-learning and internet based learning. This evolution provides individuals with the opportunity to have more freedom, convenience, and the ability to work virtually. Libraries must modify their resources and services to meet the emergence of e-learners. Academic libraries have now established connections with web-based services and e-resources, which are moving the profession forward at a rate never before seen. (Ramkumar & Kannan, 2023)

1. Introduction

Academic libraries have traditionally been the cornerstones of academic institutions, serving as repositories of knowledge and centers for learning. In the past, libraries were just regarded as physical repositories of books and other reading material, and their role was to acquire, organize, process, store, and provide access to that physical collection. These traditional libraries were characterized by their emphasis on the preservation of physical collections and the provision of a quiet, contemplative space for study and research. However, the role of libraries has expanded significantly in recent years beyond physical collections to include digital resources such as e-books, online journals, databases, and multimedia content. Modern academic libraries are dynamic and multifaceted, providing not only access to information but also a range of services that support teaching, learning, and research. They have become vibrant hubs of activity, offering collaborative spaces, technology-rich environments, and various programs and workshops that enhance the academic experience. The focus has shifted from merely preserving information to facilitating access, promoting information literacy, and supporting the diverse needs of the academic community.

1. Introduction

Libraries serve as global repositories of knowledge, like to giant treasure boxes. But librarians are faced with a lot of work as more and more things become digital. Electronic Resource Management Systems (ERMS) can help with that (Prajapati, 2016). These are incredibly useful tools that have completely transformed the way libraries handle digital content. The main goal of ERMS is to simplify librarians' lives. They support the acquisition of fresh digital materials, manage subscriptions and licenses, and even provide online resource locators (Anbu et al., 2013). They essentially act as librarians' superhero sidekicks, ensuring that everything works seamlessly in the digital realm. ERMS play a major role in keeping everything organized. They support librarians in maintaining inventory, determining who can use what, and determining when to update it (Mangrum & Ellen Pozzebon, 2012). Libraries are able to ensure that everyone has access to what they need while adhering to all access regulations in this way. However, ERMS aren't limited to library use. They're also excellent for any library user. By making it simple to locate what you're looking for in the library's digital collection, ERMS addresses that. They keep everything organized so you can quickly get to the essentials (Prajapati, 2016).The key component that keeps contemporary libraries running well is ERMS. They make it easier for librarians to handle electronic resources and for users like you and me to find what we're looking for. Thus, keep in mind that ERMS are the unsung heroes who make it all happen the next time you're navigating your library's digital world.

1. Introduction

The technology is a part of dynamic environment which has brought a lot of change in styles and pattern of various fields. Out of this education is also one of the integral parts. Technology has brought immeasurable effect in the f ield of education. E-learning consists of various types of facilities such as audio and images delivers text animation etc. E-learning process involves many types of local networks or the internet basis learning. E-learning has made learning and developmental activities so frequent which leads to easy access to required information. E-learning is a way of creating knowledge and circulating the same where teacher plays a vital role. The basic objective of e-learning is exploring and adding essential knowledge.

A poster is a printed or digital graphic display designed to convey information or messages to a target audience. Posters can include a combination of text, images, and graphics and are often used for advertising, educational purposes, propaganda, and events promotion. They are typically displayed in public spaces to reach a broad audience.

Historical Background and Origins of Posters

Early History

Ancient and Medieval Times: Early forms of posters can be traced back to ancient civilizations where announcements and decrees were inscribed on stone tablets and walls. The use of posters as we know them began with the invention of printing technologies.

15th Century: The invention of the printing press by Johannes Gutenberg in the 15th century paved the way for mass production of printed materials, including early forms of posters.

Humans possess an innate tendency to preserve their experiences and knowledge. Throughout evolution, this inclination led to the recording of text and images on materials such as stone, rock, leaves, bark, and eventually paper. The desire to preserve not only written and visual content but also sound culminated in the invention of sound recording in the late 19th century. This innovation enabled humanity to capture and reproduce auditory experiences.

In 1924, Western Electric in the United States developed the first electromagnetic sound recording machine. This device marked a significant advancement, as it allowed for the conversion of acoustic waves into electrical signals that could drive a stylus to inscribe the sounds onto a medium, such as wax records. Over time, the technology evolved, leading to the widespread adoption of electromagnetic recording on plastic tapes coated with materials like ferrous oxide and ferric oxide. The late 20th century saw the introduction of Compact Discs (CDs), followed by DVDs and Blu-ray discs. Today, sound recordings are commonly stored on hard drives, flash drives, and memory cards.

Soil is one of the major platforms on which life sustains. Soil, the product of weathering, covers the earth’s surface. Soil is the medium of plant growth and thus it requires proper attention for better crop yield. The land is the constituent of soil, vegetation, physico-chemical and biological attributes affecting its usages. The soil may act as a sink or source for the elements and other materials. Hence, it requires to understand the various components to facilitate management options for improving the fertility status of soil.

2.0 Soil

The soil is a natural dynamic body on which plant grows. It is a complex mixtures of minerals, water, air, organic matter and microorganisms. Besides, there exist an unconsolidated mineral or organic material on the surface of the earth and thus becomes a natural medium for the growth and nutrition of the plants.

The native and applied organic matter play an important role in terms of nutrient adsorption , nutrient mobility and microbial habitat on soil. The dominant ions present in soil under a particular agro-ecological situation may or may not be available to the growing plants due to the presence of organic matter. The binding energy and the stability of the organo-metal complexation would play an important role in availability of nutrients to the plants. The organo-metal complexation reaction depends on the nature of the ionic species (ionic/non ionic) present in soil. The organic fractions (Humic acid/Fulvic acid) react with metal ions present in soil to form complexes which may be stable or unstable depending upon the molecular arrangement and degree of coiling of humic/fulvic substances. The surface charge density on clay and soil pH also play an important role to determine the order of stability of different nutrients (macro/micro) in soil.

Geographical Indications (GI) are indications or symbols that are affixed to products that possess a specific geographical origin and are known for their unique qualities or reputation. These products can be agricultural, natural, or manufactured goods that are essentially attributed to a particular region, locality, or country where they are produced. According to Article 22.1 of the TRIPS Agreement, GIs identify a good as originating from a specific territory, region, or locality, where a given quality, reputation, or characteristic of the good is essentially attributable to its geographical origin.

GIs are a product of collective tradition and decision-making and continue to evolve. They represent a combination of human effort, culture, land resources, and climatic conditions. GIs are limited to a specific region and are not transferable from one owner or region to another. A product that has a GI tag is associated with a specific geographical area where it is developed, and the GI sign on the product indicates its origin. Products designated with a GI acquire a high reputation and are valuable commercial assets for the geographical region where they originated. However, GIs are also exposed to misappropriation and forgery, and therefore require both national and international protection.

The research setting is an important component of the research methodology. Research setting refers to the detailed information of an area where the study was conducted. The research setting can be seen as the physical, social, and cultural site in which the researcher conducts the study. In qualitative research, the participants are observed in their natural environments with a primary focus on meaning-making. The study area generally consists of a particular geographical area viz. a state, district, block, or gram panchayat area selected according to the benefit of the investigator who possesses adequate knowledge regarding the location, communication facility, the period of study, the availability of resources, etc. of the locality so that he can easily approach every corner of the area for data collection. Additionally, to comprehend people’s knowledge, attitudes, and behaviour more easily, investigators must have a fundamental understanding of their socio-demographic backgrounds. It is the environment within which studies are run that has important consequences for experimental design, the type of data that can be collected and the interpretation of results.

The Review of literature is a critical summary of published academic research and other sources on a particular topic or research question. It involves identifying, analyzing, and synthesizing relevant research studies, books, articles, and other sources to provide a comprehensive overview of what is known and not known about the topic.

A good review of literature should be well-structured, focused, and provide a balanced and objective analysis of the existing literature. The following are the key elements of a literature review:

1. Introduction: The introduction should provide background information on the topic and highlight the importance of the research question.

2. Search Strategy: The search strategy should outline the databases and search terms used to identify relevant literature.

3. Inclusion and Exclusion Criteria: The inclusion and exclusion criteria should be clearly defined to ensure that only relevant studies are included in the review.

Migration shows the trends of social changes. From the historical viewpoint during the process of industrialisation and economic development, people migrate from farms to industries, from villages to cities, from one city to another and from one country to another. In modern times, technological changes are taking place in Asia, Africa and Latin America due to which these regions are witnessing large-scale migration from rural to urban areas.

Economists are interested in the study of migration because migration affects the supply of skilled and semi-skilled labourers, development of industries and commerce causing changes in the employment structure of the migrated people. Formulation of economic policies has a close relation with the process of migration because migration affects the economic and social development of a country.

Research setting refers to the detailed information of an area where the study was conducted. The study area generally comprises of a particular geographical area viz. a state, district, block, or gram panchayat area selected according to the convenience of the investigator who possess adequate knowledge regarding the location, communication facility etc. of the locality so that he can easily approach each and every corner of the area for data collection. Besides the investigators must also have the basic knowledge about the socio demographic background of the people so as to have an easy understanding of their knowledge, attitude and behavior. This chapter is intended to present a brief description of the area in terms of social, economic, and agricultural aspects where the present study has been conducted.

Artificial Intelligence (AI) is a discipline of computer science that now days affecting evary aspect of day to day life. It has the potential to greatly improve animal breeding programs in India by providing more accurate and efficient selection methods. Some of the avenues and possibilities of using AI in animal breeding in India includes Predictive analytics: AI can be used to develop optimization models that take into account a variety of factors, such as genetics, phenotypic traits, and environmental conditions, to identify the best breeding strategies. AI can be used to analyze large amounts of data on animal genetics, phenotypic traits, and environmental factors to predict the likelihood of an animal producing offspring with desired traits. This can help breeders make more informed decisions about which animals to be selected for breeding. AI algorithms can be trained to accurately identify diseases in animals by analyzing imaging data, such as X-rays and MRI scans, as well as blood and tissue samples which in turn facilitate veterinarians to make more accurate diagnoses, improving treatment outcomes. AI can also improved feed efficiency by analyzing the feed consumption and nutrient utilization data to identify patterns and trends that can be further utilized to improve feed efficiency, reduced feed costs and increased production efficiency.

Introduction

Raising milk and meat production are long-standing global issues. Researchers are learning that present breeding efforts won't be sufficient to meet anticipated future food demands given the current climate scenario. The animals that influence the overall yield of the field must be screened as soon as possible. In order to build more successful modern breeding programmes, high-throughput phenotyping is currently being included into conventional breeding operations. Despite the public accessibility of their genetic information online, there is still a lack of phenotypic data on the genomes of various animal breeds because environmental factors make it more difficult to define phenotypes and increase the likelihood of measurement error (Rahaman et al., 2015). Genomic selection (GS) is a strategy that predicts the genomic estimated breeding values of lines in a breeding population using information from genome-wide markers (Meuwissen et al., 2001). When compared to other conventional methods like marker-assisted selection (MAS), genomic selection has some inherent advantages. These include boosting genetic gain by reducing breeding cycles and acquiring minor effect loci based on markers dispersed throughout the entire target genome. Reliable phenotypes and genotyping are both necessary for the training of accurate prediction models for genomic selection. Phenotyping is regarded as a significant factor restricting genetic improvements in animal breeding due to high labour and time expenditures. Traditional approaches of phenotyping are prohibitively expensive, time-consuming, and slow.

Introduction

Estimated breeding values (EBVs), often estimated for sires, are used in traditional animal breeding (TAB) programmes to make selections based on an animal’s performance and that of its relatives. Using, typically, the best linear unbiased projections, EBVs are calculated using attributes measured in own performance, pedigree, sib, and/or progeny evaluation schemes in specialised testing stations and/or selected farm conditions (BLUP; Henderson, 1975). One of the main time-consuming challenges for phenotypic evaluation to enable a meaningful estimation of breeding values is generation intervals of 4 to 5 years in beef cattle, more than 5 years in dairy cattle, and 2 to 2.5 years in pig breeding schemes (Schefers and Weigel, 2012). Modern breeding techniques like marker-assisted selection (MAS) and, more recently, genomic selection (GS) are based on the use of genetic DNA markers to aid in selection and breeding (Williams, 2005). The fundamental reason why MAS, that only further uses a few markers as a selection tool, hasn’t made as much progress as was initially anticipated is that finding trustworthy markers is challenging, particularly when dealing with complex traits. Only relatively few consistent markers could be identified, despite successful identification of many quantitative trait loci (QTL; Hu and Reecy, 2007)

Introduction

The phrase “sustainable” has been used so much in recent years-and frequently so imprecisely—that for many people, it has become meaningless or confused, more of a rhetorical chant than a source of useful advice. Lester Brown, the founder of the World Watch Institute, defined a sustainable society as one that can meet its requirements without compromising the opportunities for future generations. This definition is the one that we come across most frequently. Brown wrote this description in the early 1980s. The Brundtland Report, a 1987 United Nations report, addressed this issue and defined sustainable development as development that satisfies present demands without jeopardising the ability of future generations to satiate their own. Despite their obvious limitations speaking simply of human wants, for example, without reference to the natural world-these are significant moral exhortations. They do serve as a helpful reminder that it is our duty to provide our kids and grandkids with an equally abundant planet as we did, but they offer no guidance on how to truly create a sustainable society. When air, water, and minerals interact with living things to fill a specific region, it is referred to as an ecosystem (Tansley, 1935). This word was first used in 1935. Before then, the main goals of land management had been to provide a single item, like food or lumber, or to conserve a single, iconic species.

Changing Dynamics in HM

HM has transformed significantly; a lot because of changes in consumer behaviour, technological advancement, economic developments, regulatory changes, and growing consciousness of sustainability (Samaddar & Mondal, 2024). These changing dynamics have pushed customer’s expectations toward better and more personalized service (Law et al., 2024). Initially, the focus was on basic services and manual processes, but since then, the HM industry has embraced smart technologies like mobile apps, AI, IoT, and big data analytics. These developments have revolutionized the way customers interact; from merely checking in with their mobile phones, and controlling their room settings, to house-keeping and service delivery, thanks to AI-powered customization and automation. Using cloud services for managing properties and improving cyber security helps keep operations smooth and keeps data safe. Efforts to use energy and water more wisely show the industry's move towards being more sustainable. As the HM continues to evolve, industry stakeholders eye towards more personalized, efficient, and sustainable guest experiences. This would reflect the ongoing commitment to excellence and adaptation efforts to strive and evolve in the dynamic global landscape.