eBook Chapters

This practical assignment is conceptualized and operationalized to understand various tools and techniques in conducting a PRA at the village level and help students in understanding their application in village development planning.

PURPOSE

To get students acquainted with the PRA tools and techniques and their application in village development programme

Microbial Resistance Mechanism

Huge use of antibiotics in nosocomical environment has lead to the occurrence of multidrug resistance mechanism by microorganism against particular antibiotics (Munita et al., 2016; Zhao et al., 2020). Main operation includes chemical modification, efflux pump through passivation, modification of drug targeting gene and systemic elimination of antibiotics as many of them can form biofilm (Rajput et al., 2018) which can show extreme resistance. Chemical and enzymatic mechanism can include inactivation, activity loss, degradation and derivatizaton of antibiotics chemical group (Liu et al., 2019). Best idea may include production of enzymes or they can also expel antibiotic to efflux pump. Antibiotics drug efflux resistance can be accomplished by drug efflux pump playing an important role in microbial resistance. A different type of efflux pump system has been identified that include lipophilic and hydrophilic efflux system targeting the drug at different chemical properties (Wasaznik et al., 2009; Kumar et al., 2012). Another strategy adopting in resistance mechanism is modification of drug targeting gene. This mechanism makes the changes in drug to lose its target through drug targeting gene modification. Another important resistance mechanism is effectiveness of antibiotics by interfering with the target site. Therefore, bacteria has evolved different mechanism that include target site protection. A bactericidal role played by beta lactum antibiotics in inhibition of mucopeptide synthase and bacterial penicillin binding protein (PBP) in cell wall transpeptidation reaction that prevents the formation of complete call wall and hence dies (Sauvage et al., 2016). Bacteria also developed its own strategies to cope up with the environmental stress that can also include human body. In course of gaining the advantage bacteria needs to compete for nutrients and to keep away from the molecules produced by other competing organism (Zhao et al., 2019). Recently researchers have found the importance of biofilm resistance in bacteria. Bacterial biofilm resistance produce by complex and systematic drug resistance mechanism.

Introduction

Self Help Groups (SHGs) are fast emerging as a powerful tool of socio-economic empowerment of the poor in rural areas. These are based on the principle by the people, for the people and of the people. Such groups are participatory processes to provide opportunities for people to share knowledge, common experiences and problems.

Self Help Groups (SHGs) of women in India have been recognized as an effective strategy for the empowerment of women in rural as well as urban areas, bringing women together from all spheres of life to light for their rights or a cause. Since the overall empowerment of women is crucially dependent on economic empowerment,  women through these SHGs work on a range of issues such as health, nutrition, agriculture, forestry etc. besides income generation activities and seeking micro credit. “SHG is a small, economically homogeneous and affinity based group of people who have decided to save and contribute to a common fund to be lent to its members as per the groups decisions”. Generally, a ‘Self Help Group’ (SHG) is formed when members of a community, who have the same or similar problem, come together, meet, share experiences, have discussions and thereby arrive at solutions.

A social group is commonly conceptualized as an entity comprising two or more individuals engaged in reciprocal communication, characterized by shared traits and possessing a collective sense of unity. Within the framework of the social identity tradition, researchers delineate groups as entities whose members self-identify as part of the collective. Social groups exhibit diversity in terms of size and typologies. For instance, an individual’s initial social interactions occur within the familial context, where interactions with immediate family members, notably the mother, serve as primary points of contact. Subsequently, as the individual progresses through developmental stages, engagement with peers and neighbors expands the social sphere, constituting another significant social group. Further social group affiliations emerge during formal education, as the individual integrates into student cohorts within educational institutions. Over time, the individual assumes diverse roles within broader societal contexts, contributing to the fabric of community and national citizenship. The diagrammatic representation of an individual’s interaction with his/her social group is as under.

A drone is a sophisticated piece of technology made of many key components that work together to enable flight and various functions. The primary parts include the frame, which provides the structure and support for all other elements; the motors and propellers, which generate lift and control movement; the flight controller, acting as the brain of the drone, processing input from sensors and guiding the drone’s flight path; and the battery, which powers the system. Moreover, sensors like GPS, accelerometers, and gyroscopes are integral for stability and navigation. Many drones also feature cameras and other payloads for specific tasks, such as aerial photography, surveying, or surveillance. These components, working in harmony, allow the drone to perform a wide range of applications in industries like entertainment, agriculture, and delivery.
KEY COMPONENTS OF A DRONE
Agricultural drones consist of multiple components, including a remote controller, an aerial platform, and a spraying mechanism. They possess sensors, cameras, and more components to enhance crop management and productivity. Understanding the fundamental components is vital to understanding the potential of agricultural drones. This section delineates the essential components that render these drones viable instruments for contemporary agriculture.

Abstract
Agricultural marketing in India enables the producers and the consumers to have a direct contact to buy and sell their products. But it is crucial to have a clear understanding on the consumer’s perceptions and preferences for the products who are the ultimate users as a better marketing strategy. The present marketing methods are much different from traditional ones, and can be even transformed by the use of data analytics, cutting-edge technologies, and data-driven insights by the Agri-marketers to perceive and interact with consumers. The success of a firm/business is greatly influenced by consumer perception and it is shaped by a number of elements, such as marketing initiatives, customer service, and product quality. Therefore, to have a positive perception of the consumers on the products, one should focus on
the ideology and the working of their perceptions which helps to design and brand their products accordingly. The Indian agricultural marketing system is facing a wide range of issues, that prevents it from going global due to its in competitiveness in the export activities. Its high time to focus on innovative policies and strategies that support for the economic growth and the enhanced livelihoods of the various stakeholders in this system.
Keywords: Consumer Perception, strategies, Agri-marketing, data analytics.

Agricultural marketing in India enables the producers and the consumers to have a direct contact to buy and sell their products. But it is crucial to have a clear understanding on the consumer’s perceptions and preferences for the products who are the ultimate users as a better marketing strategy. The present marketing methods are much different from traditional ones, and can be even transformed by the use of data analytics, cutting-edge technologies, and data-driven insights by the Agri-marketers to perceive and interact with consumers. The success of a firm/business is greatly influenced by consumer perception and it is shaped by a number of elements, such as marketing initiatives, customer service, and product quality. Therefore, to have a positive perception of the consumers on the products, one should focus on the ideology and the working of their perceptions which helps to design and brand their products accordingly. The Indian agricultural marketing system is facing a wide range of issues, that prevents it from going global due to its in competitiveness in the export activities. Its high time to focus on innovative policies and strategies that support for the economic growth and the enhanced livelihoods of the various stakeholders in this system.

Abstract

Dissolved Organic Carbon (DOC) consisting of water soluble organic molecules and by products of organic decomposition and chemical degradation processes, constitutes a critical link in carbon and nutrient cycles. The quality, or chemical and physical character, of DOC affects the degree to which it is transformed by biological and chemical processes. The significance of DOC was studied in layered coastal aquifers of the Pondicherry region during four different seasons. Pondicherry region has varied geological set up ranging from Cretaceous to Recent formations. A total of 52 groundwater samples were collected from various aquifers like Alluvium, Tertiary(Upper Cuddalore, Lower Cuddalore) and Cretaceous for two different seasons of pre- monsoon(PRM), and post-monsoon (POM). The samples were analyzed for major ions and DOC. The range of DOC in the study area is 0-14 mg/l. Very high DOC concentrations were measured during PRM in the samples from Alluvium and Lower Cuddalore Formation. The samples of these formations were compared with pH, Ionic strength, log pCO₂ and carbonate minerals concentration. The alluvial aquifer shows that pH governed dissolution along the coastal tracts and in Upper Cuddalore formation it’s based on interaction between aquifer matrix and groundwater.

Introduction

Wheat, a vital cereal crop cultivated globally, serves as a fundamental source of sustenance and livelihood for millions (FAOSTAT, 2021). However, wheat production faces hindrances from various biotic and abiotic stresses, with heat stress being a notable challenge (Prasad et al., 2019). The term “terminal heat stress” refers to the elevated temperatures occurring during the crucial reproductive phase of wheat, encompassing the grain-filling period and flowering stages (Lobell et al., 2012). Terminal heat stress emerges as a significant impediment to wheat cultivation, particularly in arid and semi arid regions, manifesting during the reproductive stage of the crop (Wassmann et al., 2009). This predicament is exacerbated by the escalating frequency and intensity of heat waves attributable to climate change (IPCC, 2021).

Abstract

A study on colloids in groundwater and its relationship with the geochemical parameters is reasonably essential because of its facilitating nature to transport radionuclides in groundwater. Colloid sampling has been carried out in the coastal aquifers of southeast coast of India. Two different bore wells were selected based on the distance from the coast to collect groundwater samples. On the basis of the result achieved from this study, a reliable representation is emerging. The values of pH and EC are governed by the different size fraction of colloids. In this study, the relation between different size fractions of groundwater colloids and its pH, TDS and EC were carried out. These parameters were analyzed in the lab and its influence with four fractions of colloid like 1.2, 0.8, 0.45 and 0.22 µm have been discovered by smooth scatter plot. The accumulation of particles weighting by normal weighing instrument. There is an higher accumulation of particles found in Kalpakkam than Anupuram in all the size fractions. For separation of particles high frequency pressure was used by ultrasonic cleaner had been carried out. This method is very simple and more reasonable than any other methods.

Introduction

The cerebellum, often referred to as the “little brain,” plays a crucial role in motor control, coordination, and speech. Dysarthria, a motor speech disorder manifested by difficulty in articulating words because of muscle weakness or incoordination, can be impacted by various factors along with drugs. Understanding the impact of drugs on cerebellar function and subsequent dysarthria is responsible for both medical professionals and individuals impacted by these conditions.

Cerebellar Abnormalities and Dysarthria

Cerebellar abnormalities can lead to a variety of causes including stroke, trauma, infections and neuro degenerative diseases. If the cerebellum is affected, it can lead to motor impairments namely ataxia (lack of coordination), tremors and dysarthria. Dysarthria particularly refers to difficulties in controlling the muscles used for speech, leading to slurred or unintelligible speech patterns.

Influence of Drugs on Cerebellar Function

Several drugs can influence cerebellar function either in a direct manner or an indirect manner. These drugs may impact neurotransmitter systems, interfere with neuronal activity or cause structural changes in the cerebellum. Some medications known to influence cerebellar function include:

Introduction

The cerebellum, a structure located at the back of the brain, plays a crucial role in coordinating movement, balance, and posture. Various factors along with drug use, can significantly impact its function resulting in cerebellar abnormalities. Among these effects, the rebound phenomenon stands out as a particularly intriguing aspect, shedding light on the intricate relationship between drugs and the brain.

Cerebellar Abnormalities and Drug Influence

Cerebellar Ataxia

Drug-induced cerebellar ataxia is a common manifestation of cerebellar dysfunction. Substances such as alcohol, anti epileptic drugs and certain chemotherapy agents can disrupt cerebellar function, leading to uncoordinated movements and impaired balance.

Neurotransmitter Imbalance

Many drugs alter neurotransmitter levels in the brain, affecting communication between neurons. GABAergic and glutamatergic neuro transmission, in particular, play crucial roles in cerebellar function. Disruption of these systems by drugs can contribute to cerebellar abnormalities.

Abstract

The development and management of fresh groundwater resources in coastal aquifers are seriously constrained by the impact of seawater intrusion. The coastal aquifers are fragile and this situation becomes more intense like that of the coastal Cuddalore region. The geochemical signature of groundwater of Cuddalore coast was studied for Pre Monsoon, Southwest, North east and Post Monsoon seasons by collecting total of 64 groundwater samples in each season. The collected samples from were analysed for physical parameters, such as electrical conductivity (EC), pH and major ion concentrations, such as Ca, Mg, Na, K, Cl, HCO₃, PO₄ and SO₄. Interpretation of analytical data shows the predominance of  Na–Cl type   in PRM and Ca- Mg-Cl type  is the dominant facies during POM. The Chaddas evaluation diagram shows that the hydrogeochemical evaluation plot for PRM samples fall in  Na-Cl type. The ratios of Na/Cl and Cl/HCO₃ is also enumerated the fact that the most of the samples from PRM and few samples from other seasons also indicates dominance of salt water intrusion.

3.1 Language and Principles of Writing: Basic Differences Between the Print, Electronic and Online News

Because each media has a unique readership with different needs, writing for print, electronic, and digital news demands distinct terminology and approaches. Here are the key differences:

Print News: Language

1. Conciseness: Print news requires concise and to-the-point writing due to limited space.
2. Formal Language: Language tends to be more formal and structured.
3. Third Person: Writing is often in the third person.
4. Headlines: Print headlines are shorter and must convey the essence of the story.

Introduction

Azoles, a class of organic compounds containing a five-membered nitrogen containing ring, have garnered significant attention in various fields, including agriculture, medicine, and industry. These compounds are renowned for their diverse applications, particularly as anti fungal agents in both human and veterinary medicine, as well as in agriculture for crop protection. Whatever it may be, alongside their efficacy, concerns have arisen regarding their potential toxicity and environmental impact.

The Role of Azoles

Azoles play a crucial role in combating fungal infections in humans and animals. They inhibit the synthesis of ergosterol, a vital component of fungal cell membranes, thereby disrupting fungal growth and proliferation. Additionally, azoles are used in agriculture to protect crops from fungal diseases, contributing to higher yields and improved food security.

Toxicological Concerns

While azoles have proven effective in controlling fungal infections, their use raises concerns due to potential adverse effects on human health and the environment. The toxicity of azoles stems from several factors, including their mode of action, chemical properties, and metabolic pathways.

Introduction

Phenothiazines are a class of drugs primarily used to treat psychiatric disorders such as schizophrenia, bipolar disorder, and severe anxiety. While they can be effective in managing these conditions, they also come with potential risks and toxic effects when not used properly. Understanding the toxicity of phenothiazines is essential for healthcare providers and patients alike to ensure safe usage and minimize adverse effects.

Mechanism of Action

Phenothiazines exert their therapeutic effects by blocking dopamine receptors in the brain, thereby altering neurotransmitter activity and reducing symptoms of psychosis. Additionally, they also block other receptors such as histamine and alpha-adrenergic receptors, contributing to their sedative and antiemetic properties.

Types of Phenothiazines

There arevarious phenothiazine derivatives available, including chlorpro mazine, fluphenazine, thioridazine, and promethazine, among others. Each may have slightly different pharmacological properties and side effect profiles, but they share common characteristics regarding toxicity.

Toxic Effects

Extra Pyramidal Symptoms (EPS)

One of the most well-known toxic effects of phenothiazines is the development of extrapyramidal symptoms, which include akathisia, parkinsonism, and tardive dyskinesia. These symptoms can range from mild discomfort to severe motor disturbances and can be particularly problematic with long-term use.

Introduction

Modern agricultural systems that promote cultivation of a very limited number of crop species have relegated indigenous crops to the status of neglected and underutilised crop species. This has caused a decline in crop diversity in agricultural systems across the world and current research efforts have identified these underutilised crops as having potential to reduce food and nutrition insecurity. This is because of their adaptability to low input agricultural systems and better nutritional composition. Underutilised crops are otherwise known as undervalued or neglected or development opportunity crops (DOCs) (Kahane et al., 2013). They are already cultivated, but underutilised regionally or globally giving relatively low global production and market value. These underutilised crop species have also been described as “minor”, “orphan”, “promising” and “little-used”. Many of these traditional crops grown for food, fiber, fodder, oil and as sources of traditional medicine play a major role in the subsistence of local communities. With good adaptation to often marginal lands, they constitute an important part of the local diet of communities providing valuable nutritional components, which are often lacking in staple crops. Global Facilitation Unit (GFU) for Underutilised species define underutilised crops as, those plant species with under-exploited potential for contributing to food security, health (nutritional/ medicinal), income generation and environmental services.

The Himalayan region extends all along the Northern boundary of India. It experiences harsh environmental conditions, coupled with unfavourable climate, poor physical capacity of soil and threaten habitat. However, low and mid altitude areas provide environment ranging from sub tropical to temperate, where plant life thrives. The diverse eco-habitat of Himalayan region hosts a wide range of plant diversity as well as crop diversity on which native people rely for their food and nutritional security. Among them, amaranth, buckwheat, chenopod, job’s tear millet and rice bean are the potential crop species of the region as they can easily be grown in harsh environments and degraded lands. These crops possess an exceptionally high nutritional value with higher content of protein, lipids and minerals as well as balanced composition of essential amino acid as compared to other cereals. Majority of people in the country are unaware of the nutritive values of underutilized crops. The chapter provides information on taxonomy, origin and distribution, nutritive value, uses, improved varieties, production and protection technology of the major underutilized crops grown in Himalayan region.

Underutilized crops are well adapted to the lands of Himalayan region and provide food and nutritional security to millions of impoverished people who do not have access to modern agricultural inputs. Owing to their nutritional superiority, underutilized crops are becoming popular in urban area as well as in developed countries as for example Amaranth in USA. With constantly increasing awareness for health products, the demand of underutilized crops is likely to grow in near future. Accelerated research and development are, therefore, essential for increasing production as well as productivity of underutilized crops along with mechanization and value addition.

The Andaman and Nicobar group of Islands, popularly known as the Bay islands, consists of 572 islands, islets and rocks, situated off the Eastern coast of India. The Islands are covered from coast to coast with an almost impenetrable growth of luxuriant tropical rain forests. The luxuriant growth of dense forests with tangled mass of climbers, lianes, canes and plant communities provide an additional source of income. Many species of bamboos, bushes, shrubs and stunted trees have tremendous values (Mondal, et al 2000). Most of the diversity is still collected from wild forest habitats largely composed of trees, shrubs and other perennial vegetations. Underutilized fruits provide food, nutrition and sustenance to the natives. Broadly, such underutilized diversity in edible fruits falls into four categories (Groot et al 1993).

Wild fruits were an important source of food for mankind before dawn of civilization and domestication of present day fruits. Cavemen in forests also depended on these fruits and passed on valuable information on utility and choice of wild species of fruits from generation to generation.Thus the present day horticulture came into existence. Also, wild varieties of plants, yielding edible fruits growing throughout the Himalayas, contributed directly to cultural heritage of India. Even today, these fruits are eaten in plenty by local people, as they are commonly available in abundance in their habitats. Fruit crops, which are neither grown commercially on large scale nor traded widely are called underutilized fruit crops. These are cultivated, traded and consumed locally. Underutilized fruit crops have many advantages in terms of easiness to grow, hardy in nature and  production of good crop even under adverse conditions. Most of them are rich sources of vitamins, minerals and other nutrients. Underutilized fruit crops play crucial role in successful running of processing industry round the year in the region. A large proportion of rural population depends on locally available fruits to meet their dietary requirements

In ancient days spices and herbs were valued as basic ingredients of incense, embalming preservatives, ointments, perfumes, antidotes against poisons, cosmetics and medicines and were used less in culinary preparations. A notable use of spices and herbs in ancient and medieval times were for the treatment of a variety of illnesses. Subsequently spices and herbs had come to be used to flavour food and beverages. In the course of time spices and herbs were shown to be useful not only for making the food lasting and palatable, but also in retarding or preventing rancidity and spoilage. This knowledge acted as a catalyst for the use of spices in a variety of processed foods. Based on the uses, herbs and spices are classified in to culinary, cosmetic and pharmaceutical. In the modern world spices have wide affiliation in the culinary art of people around the world, and are used in food industry for flavouring and seasoning, as well as in pharmaceutical preparations in the traditional systems of medicine and in beauty care. Spices and herbs are useful because of the chemical constituents contained in the form of essential oil, oleoresin, oleogum and resins, which impart flavour, pungency and colour to prepared dishes.

The extensive use of improved types of vegetable crops has led to a  situation that the indigenous types are virtually disappearing from ecosystems creating a vacuum in crop biodiversity. Biodiversity of genes, species, ecosystems and habitats will remain under threat. Habitats will be decreased and fragmented, endangering many indigenous, rare, endemic and specialist species populations and ecosystem functions, although generalist and invasive species will continue to spread. Therefore, loss of biodiversity can be considered at three scales: genes, species or populations and habitats or ecosystems. Maintaining thriving natural systems is essential not only for economic or ethical reasons, but also for ecological, social, recreational, educational and aesthetic reasons (Gomez, 1996). Most of these are easy to grow, resistant to pests and diseases, hardy and acceptable to local taste. They are rich in carbohydrate, proteins, fats, vitamins and minerals; hence the diets could be diversified to meet the nutritional requirements of the people in the country. The lack of micronutrients, including certain vitamins, minerals and other components needed for a healthy diet, is a pervasive and growing threat throughout the world.

Use of medicinal plants is as old as human civilization. India has a glorious tradition of health care system based on plants, which dates back to vedic era. Rig Veda , the oldest known repository of human knowledge and wisdom (4500-2500 B.C.) mentions about several medicinal plants used by the Aryans while in Atharva veda (2500-2000 B.C.) elaborates description of medicinal plants is given. Later, in Samhita period, the science of medicine systematically organized with clear concept and theories based on the treatises like Charak Samhita – 2000 B.C. and Sushruta Samhita – 1000-800 B.C (Maiti, 2008). Traditionally medicinal plant communities depended on plants to meet their basic needs over centuries. The pharmaceutical industry views plant wealth as a source of income. The modern medicine world perceives plants as a panacea for many ills. Despite this, there is no consolidated strategy to conserve medicinal plants for their use (Purohit and Vyas, 2005).

Among the temperate fruits, nuts have occupied an important position and can be grown in cold arid conditions on marginal lands of Indian hills without much care. In many countries, nut fruits are cultivated in marginal lands, hill slopes under rain fed conditions following the non intensive cultural practices by using cultivars selected to different environments using low quality ecotypes with poor yield. Although; these crops showed much potential to produce more yield provided cultivation in suitable environment condition along with high tech orchard management practices. The major nut fruits grown in world are almond, walnut, pecan, pistachio, hazelnut or filbert, chestnut and macadamia nut. In India, the full potential of almond and walnut has been exploited to great extent. The potential of other nuts are yet to be utilized and need special attention.

In India, nut fruits have not been given due importance in hills compared to pome and stone fruits although much potential exists. Amongst the nut fruits, the potentials of almond and walnut have been exploited to some extent but others are still in the underutilized condition. The main almond and walnut growing states of India are Jammu & Kashmir, Himachal Pradesh, Uttarakhand and North-Eastern states.

India is one of the 17 mega biodiversity hot spot of the world contributing to the worlds largest plant resource,from the long stretches of the Eastern Ghats on the east, the greater Himalayan range on the northern planes and Western Ghats on the west. The Eastern Ghats range is unique on its own way to host many valuable flora from time immemorial. The Eastern Ghats are spread over four states from the north east to south east. Among the four states Orissa is one of them consisting of diversified floral resource.

Orchids, more than any other plants, exert a mysterious fascination for most people. All the wild Orchids of tropical regions are highly puzzling and peculiar. These largest spectacular plants of monocot belongs to family Orchidaceae  consisting of more than 17,000 known wild species including 750 genera in the world and the present figure of hybrids among these touches around 80,000 (Rao, T.A., 1998). This family is cosmopolitan in nature having more species in tropics than the temperate regions. This family of monocotyledonous plants has evolved from prototypes of the lily and amaryllis family and is note worthy for the wide variety of its highly specialized and curiously modified forms.

Palms are monocot species, belonging to the family Palmae (Arecaceae). They are perennial and distinguished by having woody stems. Coconut, Arecanut and Oil palm are the major crops coming under this group. Palmyra is a naturally occurring palm in many parts of Tamil Nadu, Andhra Pradesh, Karnataka, Kerala, Orissa, Bihar and West Bengal States. Palmyrah is utilized by the locals for tapping inflorescence sap and for fruit. Palms of India are represented by 20 genera and about 96 species among which 24 species belonging to nine genera are endemic to India. The largest genus, Calamus with 44 species is followed by Phoenix seven, Pinanga five and the rest with less than five species each. The genera Borassus, Salaca, Livistona, Nypa, Hyphaene and Ptychoraphis are represented by a single species each. In addition, C. nucifera and A. catechu are extensively cultivated as plantation crops. They have almost naturalized in parts of Kerala and Andaman Nicobar Islands. Except P. sylvestris, C. urens and B. flabellifer which are widespread in peninsular India, the rest are of restricted distribution in specialized eco-geographical regions of the country. The forests of Andaman–Nicobar islands (13 genera, 24 species), northeastern and eastern Himalayan region (12 genera, 36 species) and the Western Ghats (7 genera, 30 species) are major centres of palm concentration. Nypa fruticans and Phoenix paludosa are fringe mangrove species occurring in salt marshes of Sundar-bans and Andaman–Nicobar islands. P. paludosa is also found in Orissa.

Energy remains the mainstay of civilized world. The priorities may lay in cost economics, environment friendliness, import substitution, or self-sufficiency as strategic objectives.  By the year 2050, worldwide energy demand is projected to be at least twice today’s level. Energy and environment are sectors that are of concern for policy makers and scientists.  Indian scenario is unique and different from other developed or developing countries. It has vast areas that lay waste and are not being utilized for cultivation since these are unfertile, dry, sodic, saline, or alkaline. Majority of its population lives in villages.
 
Energy supply must be sustainable and diverse and energy needs to be used more efficiently. Sustainable energy supply, both in the short- and the long-term, is needed for promoting both economic development and people’s quality of life, as well as protecting the environment. We also need a greater diversification of energy resources to ensure against risk of price rises and supply disruptions.

Introduction

Tripura is situated between 22^º56 ‘to 24^º32’ N latitude and 91^º10’ to 92^º21’ E latitude with tropic of cancer passing through it. The total geographical area of state is about 10,491 Sq.Km of which 58.90 percent area is under forest cover. More than 75 percent of the population either directly or indirectly depends on agriculture. The small and marginal farmers contribute about 90 per cent of total farming community and the average size of land holding is 0.97 ha (1990-91) in comparison to 1.25 ha (1976-77), which is the lowest among the seven other North Eastern states.
 
The state weather is characterized by warm and humid subtropical climate with three distinct seasons viz., summer, monsoon and winter with three different cropping seasons like khariff, rabi, summer and jhum cultivation in forest during pre monsoon and late monsoon periods. This state has many rivers out of which the important ones are Juri, Deo, Manu, Dalai, Thowai, Haora, Mahari, Burigang and Gomati which are mainly seasonal. Tripura receives an average rainfall of 2065 mm.The monsoon breaks in May – June and continues for about 4.5-5.0 months.

Qualitative detection of undesirable constituents, adulterants in Feeds: The nutritive value of feed ingredients from the same origin may exhibit variation. The factors which are responsible for the variation are natural variation are natural variation, processing, adulteration and damage, deterioration. These days, due to shortage and high prices of feed ingredients, adulteration is one of the main problems. Feed quality can be examined by different techniques:
(a) Feed microscopy: Stereo or compound microscopy may be used for: (i) Screening method; (ii) Floatation technique.
(b) Chemical tests: For heavy metals, nitrates, phosphates, sulfates, free sulfur, salts: carbonate, chloride, salt, sugar, urea, blood, hoof or horn, leather meal, uric acid.

17.1. The Nigerian Unemployment Milieu: Control Measures taken by the Government

At this juncture, the little efforts that have been made by the government to control unemployment to an extent shall be examined. Records from the Central Bank of Nigeria (1987), show the following efforts made by the government:

1. Youths Empowerment/ employment and skills programme. This was done in terms of provided minor jobs or ‘white-colar’ jobs.

2. Agricultural programmes such as the ‘Operation Feed the Nation’ by the Obasanjo Military Administration.

3. Provision of small scale industries and graduates employment.

4. Special public works (which were temporary). Some of these efforts are still in place while others are forgotten. For example, on the pages of the Businessday Newspaper, on August 4th (pg 13), 12th (pg 49), 21st and 27th, 2009 were the following headings revealed:

Beverage: It includes all drinks whether they are fermented or unfermented, prepared from fruits or non-fruit, sweetened or unsweetened eg. tea, coffee, coca cola, cider, maaza are all beverages.

Fruit Beverages : Beverage which is prepared partly or fully from fruit juice or pulps with or without additives eg. pure fruit juice, squash, cordial, RTS beverage etc.

Non-fruit Beverage : Beverage which does not contain any fruit part eg. Coca cola, pepsi, sherbet etc.

Unfermented Juice or Pure Fruit Juice: This is the natural juice pressed out of the fruit and practically its composition remains unaltered during preparation and preservation. No additives like sugar, acid, water etc. are added. eg apple juice, orange juice.

Fruit Juice Beverage: This is the fruit juice that has been considerably altered in composition by adding water, sugar, acid, flavour, colours, preservatives etc. before consumption. It may or may not be diluted before it is served as a drink eg. squashes, nectars, appetizers etc.

The world ‘‘Unfruitfulness’’ means a state or character of being unfruitful or barrenness. It is a vital constraint in so many fruit crops leading to a great loss to the farming community. In contrary, ‘Fruitfulness’ is the state where a fruit plant is not only having the ability of flowering and fruiting, but also carry on these fruits up to maturity. The inability of the plant to do so is known as ‘unfruitfulness’ or ‘barrenness’. 

The world ‘‘Unfruitfulness’’ means a state or character of being unfruitful or barrenness. It is a vital constraint in so many fruit crops leading to a great loss to the farming community. In contrary, ‘Fruitfulness’ is the state where a fruit plant is not only having the ability of flowering and fruiting, but also carry on these fruits up to maturity. The inability of the plant to do so is known as ‘unfruitfulness’ or ‘barrenness’. Despite of profuse flowering, poor fruit retention in an orchard has been found owing to poor fruit setting at initial stage and subsequently abscission of the fruitlets. All the trees of an orchard do not bear flowers and fruits in the same extent or regularly and sometimes fail to bear flowers and fruits under similar conditions while other trees bears heavily. Such type of characteristics of trees may be attributed to unfruitfulness. Thus, all the problems affecting fruit retention upto final stage can be considered under unfruitfulness of a tree. Therefore, it is a very complex problem of an orchard and needs proper understanding for economical and effective management to maintain sustainable production of fruit crops.

CAUSES OF UNFRUITFULNESS

There are innumerable causes perceived behind unfruitfulness. Majorly, It may be due to poor root shoot ratio, lack of balance between vegetative and reproductive (fruiting) growth, heavy crop load which leads to restriction of fruit bud production and finally short of the crop in the following years.

Unfruitfulness is a major problem in many fruit crops and their varieties. ‘Fruitfulness’ refers to the state, where a plant is not only capable of flowering and bearing fruit but also takes these fruits to maturity. The inability of plant to reach the fruits to maturity is known as ‘unfruitfulness’ or ‘barrenness’. In spite of adequate flowering, low fruit yields in orchards have been experienced because of low initial fruit set and subsequently higher fruit-let abscission. In an orchard, all the trees do not bear fruits equally or regularly and sometimes fail to flower and bear fruit under similar conditions, where another fruit tree bears heavily. This failure to fruit may be attributed to unfruitfulness. It is associated with internal and external factors.

Internal factors: These are as follows.

Introduction

Impact Assessment is simply defined as the process of identifying the future consequences of a current or proposed action. The “impact” is the difference between what would happen with the action and what would happen without it (International Association for Impact Assessment). It’s a structured process for considering the implications, for people and their environment, of proposed actions while there is still an opportunity to modify (or even, if appropriate, abandon) the proposals. It is applied at all levels of decision-making, from policies to specific projects.

IA aims to

• provide information for decision-making that analyses the biophysical, social, economic and institutional consequences of proposed actions;

• promote transparency and participation of the public in decision-making;

• identify procedures and methods for the follow-up (monitoring and mitigation of adverse consequences) in policy, planning and project cycles; and contribute to environmentally sound and sustainable development.

I. Decimal Multiples and Sub-Multiples

II. Description of Units

Mechanical Units

Electric and Magnetic Units

The esu and emu unit systems are cgs systems.

esu denotes “electrostatic unit”, sometimes given prefix “stat”, e.g. statcoulomb emu denotes “electromagnetic unit”, sometimes given prefix “ab”, e.g. abcoulomb Some emu units have special names:

I. Scope and Importance of Horticulture
• The total Geographical area of India is 328.73 ha which stands seventh position in the world.
• India’s population is about 138.5 crores as on November 5, 2020 (UN data) which stands second in the world after China.
• Population depends on agriculture is around 55-70%.
• The term Horticulture derived from two Latin words, Hortus - Garden, Cultura - Cultivation.
• Protected enclosures are used to grow vegetables, flowers and ornamental plants etc

A. Mixing and Homogenization

1. I.ntroduction to Mixing and Homogenization

In the food industry, mixing and homogenization are fundamental procedures that are essential to the production of a wide range of food items. To produce the desired qualities and final result with uniformity and consistency, various ingredients are blended. Ensuring product quality, stability, and customer happiness are contingent upon these processes.

Importance of Mixing and Homogenization

Mixing and homogenization are paramount for several reason

A. History, Principles, and Scope of Biological Control

Biological Control

Biological control, defined as the use of living organisms to reduce the population of pest species, stands out as one of the most successful, cost effective, and environmentally friendly methods of pest management. This natural process is intrinsic to maintaining ecological balance and supporting the greenery of our planet by enabling plants to produce the necessary biomass to sustain diverse forms of life.

The Essence and Impact of Biological Control

Biological control is an omnipresent force in both natural and human-made ecosystems, constantly active without any human intervention. Its origins trace back over 500 million years with the evolution of the first ecosystems. The process involves naturally occurring reductions in pest populations, which historically, have allowed for the flourishing of plant life critical to the earth’s ecological systems. Without these biological control mechanisms, the amount of energy produced by plants would be a fraction of current levels, drastically reducing the earth’s capacity to support life.

I. Importance of Growth and Development
• Growth is an irreversible increase in size and evaluated by mass length and height, surface area or volume.
• Growth is produced by cell division in meristem.
• Root and shoot of vascular cambium are meristematic.
• Apical meristem of root and shoot is developed during embryo development.
• Plant growth is determinate (leaves, flowers, fruits) or indeterminate (root, stem).
• Monocarpic species flowers only once and die.
• Polycarpic species after flowering return to vegetative and flower at once before drying.
• Monocarpic annuals – monocarpic species lives for only one year/one season. Eg. Marigold, cosmos etc.

A. Novel Dehydration Technologies

Dehydration, the process of removing moisture from food products, is crucial for enhancing shelf life, reducing weight and volume for transportation, and preserving nutritional value. Traditional dehydration methods, such as sun drying, air drying, and freeze drying, have been widely used for centuries. However, advancements in food technology have led to the development of novel dehydration technologies that offer improved efficiency, quality retention, and sustainability.1. Vacuum Microwave Dehydration

Vacuum microwave dehydration is a cutting-edge dehydration technique that combines the advantages of removing moisture from food products while preserving their color, flavor, texture, and nutritional content (fig 1).

A. Biology, Adaptation, and Host-Seeking Behavior of Predatory and Parasitic Insects

The study of the biological processes, adaptations, and host-seeking behaviors of predatory and parasitic insects is fundamental for enhancing the efficacy of pest management strategies. These aspects are central to leveraging natural predator and parasite behaviors for biological control.

i. Biology of Predatory and Parasitic Insects

The study of the biology of predatory and parasitic insects is a cornerstone in understanding how these organisms function as critical components of biological control programs. These insects play a pivotal role as natural enemies of pest species, with physiological and developmental traits finely tuned for the effective management of pest populations. By examining their complex life cycles, reproductive strategies, and other biological traits, researchers can optimize the use of these insects in integrated pest management (IPM) strategies.

1. Propagation
• Multiplication of plants is termed as propagation.
• Aim to achieve increase in number and preserve essential characteristics of mother plant.
• Most of the horticultural crops are propagated through vegetative means.
• Two types of propagation
• Sexual propagation - through seeds which is formed by sexual reproduction
• Asexual propagation - through vegetative parts or organs of a plant.

A. Non-thermal Processing

Non-thermal processing encompasses a diverse range of food preservation and treatment techniques that do not rely on heat as the primary means of achieving microbial inactivation or quality preservation. Unlike conventional thermal methods such as pasteurization and sterilization, which involve exposing food to elevated temperatures for a specified duration, non-thermal processing methods operate at or near ambient temperatures. These innovative technologies offer several advantages, including the preservation of sensory attributes, retention of nutritional quality, and minimization of detrimental effects on food texture and f lavour (fig 1).

A. Mass Production of Quality Bio-control Agents: Techniques, Formulations, Economics, Field Release/Application, and Evaluation

Biological control agents, such as phytophagous insects, play a significant role in integrated pest management by targeting and suppressing weed populations naturally. Effective utilization of these agents requires understanding their mass production, formulation, economics, field release/application, and evaluation.

Techniques for Mass Production of Bio-control Agents

Mass production of bio-control agents involves rearing insects or other organisms in large quantities while maintaining their effectiveness and quality. The following are key techniques used in mass production:

1. Laboratory Rearing: Laboratory rearing of bio-control agents is a meticulous process that ensures the continuous production of high quality insects under controlled environmental conditions. This technique involves creating optimal conditions for temperature, humidity, and light to simulate natural habitats. Nutritional requirements are met by providing specific diets, which can be natural or artificial, tailored to the needs of the bio-control agents. Breeding protocols are established to manage mating, egg-laying, and larval development cycles efficiently. By controlling these factors, laboratory rearing ensures a stable and sustainable supply of bio-control agents for field application.

1.1. Establishment of orchard
• A long term investment and deserves a very critical planning.
1.1.1. Location and site
• Well established fruit growing region, because one could get benefit of experience of other growers.
• Market should be close to the area with assured demand.
• Climate should be suitable to grow the chosen fruit crops; free from cyclones, frost, hailstorms and strong hot winds.
• Adequate and good quality water supply should be available round the year.