eChapters

After attaining a rich experience over a period of time, our forefathers have developed very pertinent primitive knowledge in a wide variety of fields (Rohilla et al., 1999). These location specific wisdom are known as indigenous traditional knowleges (ITKs). Indigenous traditional knowledge are the upshots of the pragmatic approach by our sons of the soil. As such, there are many ITKs emerged due to the incremental and cumulative learning among societies living in close connection with nature. The traditional communities are often called as indigenous or local or ethinic people. They have accumulated lots of empirical knowledge gained from the day-to-day life. The variations in availability of raw materials and environmental conditions clubbed with time tested traditional knowledge and wisdom, have made people of different regions of the North Eastern hill states to formulate, develop and perpetuate consumption of a wide range of traditional foods and beverages unique to its places since ages (Savitri and Bhalla, 2007).

ABSTRACT

Agriculture is an important economic activity in India, contributing around 50% for the employment generation and 14% to the total gross domestic product (GDP) of the nation. Being a subsistence activity, agriculture shares maximum contribution in the national economy. However, the income generated from agriculture is not sufficient to engage the rural youth in farming profession. Lack of economic incentives coupled with other factors like lack of infrastructure for education, and opportunities for employment lead to the migration of the rural youth to the urban areas. Migration of human population can be both interstate as well as intrastate to establish a new permanent or semi-permanent residence. According to the 2001 census, total number of migrants is 314 million by the last residence. Of these 85% of the migration is intrastate while 13% migration is interstate. Approximately 20 million people have migrated from rural areas to urban areas; the reason for migration was predominantly marriage for females, and employment and education for males. This phenomenon has resulted in decrease in the work force in the villages leading over labour population in urban areas – those results in low wages due to competition and wide spread poverty. The situation becomes worse when the youth drop out from the formal education system and move to the urban areas in search of better employment opportunities. This unskilled labour constitute the labour class in the urban areas, and due to the low wages received by them, they remain economically vulnerable. This situation is aggravated by the biased government policies for the rural youth, lack of awareness and ever spreading poverty. Thus, it is important to understand the factors responsible for the youth migration from rural to urban areas and effect of this migration on both rural and urban economy. This paper highlights the issue of youth migration from rural areas to urban areas in search of better education and employment opportunities and its consequences. Further, the policies are described in brief for the involvement of the rural youth in rural economy.

ABSTRACT

Agriculture can act as a catalyst in accelerating growth and reducing poverty. Agriculture can be an important engine of growth and poverty reduction. But in spite of its futuristic capabilities, the sector is underperforming because the productivity is reduced because of the constraints faced by the women in agriculture and allied sector. The women are the backbone of agricultural workforce but worldwide their hard works have mostly been unpaid. They have to perform most tedious and back breaking part of work in agriculture, animal husbandry and at homes. The tribal women play a significant and crucial role in agricultural development and allied fields including in the main crop production, livestock production, horticulture, post harvest operations, agro / social forestry, fisheries, etc. Tribal women have to manage, often, complex and multiple livelihood strategies. Their activities typically include producing agricultural crops, tending animals, processing and preparing food, working for wages in agricultural or other rural enterprises, collecting fuel and water, engaging in trade and marketing, caring for family members and maintaining their homes. Women’s participation in rural labour markets varies considerably across regions, but invariably women are over represented in unpaid, seasonal and part-time work, and the available evidence suggests that women are often paid less than men, for the same work.

ABSTRACT

Indian agriculture is an economic symbiosis of crop and cattle population. Millions of family dairy farming dominates India’s dairy industry, contributing 62 percent of total milk produced in the country. So, encouraging family dairy farming in rural areas is necessary to increase the milk production at national level and increase the socioeconomic status of landless and marginal farmer. In rural areas there is a major problem of milk marketing. In urban scarcity of quality milk, other side in villages especially faraway from city there is surplus milk and farmers are not interested to rear more dairy animals. Marketing of surplus milk is main problem because milk is a highly perishable item and farmers not having time and also due to less quantity of surplus milk (3-5 liter) they are not interested to go market. For this we can work in group and collect milk at one place from all members and one person go to market for selling of milk. Extra milk can be used to manufacture other milk products like ghee, peda, paneeretc by other member. Some members also engaged in other work like treatment of animals, collect information of different schemes from related offices. While engaging with rural communities, we recognised that village women are the primary caretakers of cattle and play a significant role in dairy farming. As a result, the Village Woman Dairy DevelopmentProgramme - an initiative focusing on empowering village women engaged in dairy farming. Benefits in dairy farming depend on cost of feeding, medicines, labour and income from sale of milk. Milk price is fixed and not in farmers control so we increase the income through reducing the cost of milk production. Approx 70% cost of milk production on feeding of animals. To reduce cost of feeding and medicine we fed balanced ration to dairy animals. Also reducing cost of production by feeding locally available unconventional feeds through total mixed ration feeding and urea mineral molasses block supplementation.

Introduction

Individual bits or “bytes” of “raw” biological data (e.g. the number of individual plants of a given species at a given location) do not by themselves inform the human mind. However, drawing various data together within an appropriate context yields information that may be useful (e.g. the distribution and abundance of the plant species at various points in space and time). In turn, this information helps foster the quality of knowing (e.g. whether the plant species is increasing or decreasing in distribution and abundance over space and time). Knowledge and experience blend to become wisdom—the power of applying these attributes critically or practically to make decisions. This quotation is from the Atlantic Canada Conservation Data Centre, a non-profit organization established in 1999.Thus, we are led to think about Data, Information, Knowledge, and Wisdom as we explore the capabilities and limitations of IT systems.

1. Introduction

Protein–protein interactions serve as the hub of the functioning of a living cell, coordinate biological processes as well as form core for interactomics system of living organisms. Various biological processes as signal transduction, cell-cell communication, ingestion or expulsion of any macromolecule, host parasite interaction, diseases as cancer and many other metabolic networks employ protein–protein interactions. During such a process two or more proteins interact transiently with each other or form complex for a long period of time. Thus attempts have been made for years to study comprehensive mechanism of such protein–protein interactions by various branches of sciences such as biochemistry, quantum chemistry, molecular dynamics, chemical biology and signal transduction. The availability of three-dimensional (3D) structure of proteins is a prerequisite for understanding functions of protein complexes at a molecular level as well as amino acid interactions within a complex.

1. Introduction

An expert system is defined as “a computer program designed to model the problem solving ability of a human expert” (Durkin, 1994). It is also defined as “a system that uses human knowledge captured in a computer to solve problems that ordinarily require human expertise”. An intelligent computer program that uses knowledge and inference procedures to solve problems that was difficult enough to acquire significant human expertise for their solutions. It is a computer application that solves complicated problems that would require extensive human expertise. To do so, it simulates the human reasoning process by applying specific knowledge and interfaces. Expert system also uses human knowledge to solve problems that normally

What is Indigenous Knowledge?

Indigenous knowledge (IK) is the local knowledge which is considered as the social capital of the poor. It is their main asset to invest in the struggle for survival, to produce food, to provide for shelter and to achieve control of their own lives. Indigenous knowledge is a cumulative body of knowledge, practices and manifestations maintained and developed by people with long histories of interaction with their natural environment. It forms the basis for local-level decision-making in agriculture, health, natural resource management and other activities, especially for the poor, and provides problem-solving strategies for communities (World Bank, 1998). IK is a tacit knowledge that is not easily codifiable and unique to a particular culture and society.

Abstract

Himachal Pradesh has achieved a transformation in the horticulture sector during the last fifty years. The total area under fruits, which was only 793 hectares in 1950 has increased to 1.82 lakh Hectares during 2003-04, out of which temperate fruits alone cover an area of 1.20 lakh hectares. Fruit production has also increased from 1200 M.T. in 1950 to 6.92 lakh MT during 2004-05, with temperate fruits accounting for 5.92 lakh MT.  Around 4.64 lakh farmers are estimated to be involved in the fruit production programme and the fruit industry generates a gross domestic income of about Rs. 1000 crores annually. The existing problems and constraints have been identified and the remedial measures required to provide the desired impetus to the horticulture industry of the State, elaborated.

Abstract

The North-West Himalaya is bestowed with rich genetic diversity of minor temperate fruits representing the genera viz. Malus, Prunus, Pyrus, Rubus, Ribes, Sorbus, Cotoneaster, Myrica, Corylus, Crataegus, Punica, Hippophae, Elaeagnus, Viburnum, Vitis, Ficus, Citrus, Ziziphus, Morus,, Olea, etc. These species are known for their hardiness, adaptability to wastelands and tolerance to biotic and abiotic stresses. Apart from their easy availability, they assure some sustained yield and make our diet more diverse. Some indigenous species having potential for diversifying temperate fruit production are Pyrus pyrifolia, Diospyros lotus, Rubus ellipticus , R. lasiocarpus, R.. fruiticosus, Corylus colurna, Citrus pseudolimon, Hippophae rhamnoides and Pinus gerardiana. Some of the exotic temperate fruits viz. pineapple guava (Feijoa sellowiana), Chinese ber (Ziziphus jujuba), Japanese persimmon (Diospyros kaki), Rubus spp., Ribes spp, quince (Cydonia oblonga), medlar (Mespilus spp.), pecan nut (Carya illinoensis), hazelnut (Corylus avellana), husk tomato (Physalis spp.) and tree tomato (Cyphomendra betacea) have shown good performance at National Bureau of Plant Genetic Resources  Regional Station, Shimla.

Cell mediated immune response performs different functions in protecting the immune system. When antigens are destroyed by cells, without producing antibodies, the immunity is called cell-mediated immunity (CMI) or cellular immunity. In this immunity T cells play a major role. The principal role of cell mediated immunity is to detect and eliminate the cells that have intracellular pathogens. When the antigen remains inside the cell the antibody cannot handle them. The intracellular pathogens are controlled by cell- mediated immunity. CMI is invited by the recognition of antigens by T cells. T cell lymphocytes recognize protein antigens of intracellular microbes that are displayed on the cell surface of infected cells. It is also important for elimination of cells which express foreign MHC molecules. Antigen specific and nonspecific cells can contribute to the cell-mediated immune response. The activities of both specific and non-specific components usually depend on effective local concentration of cytokines.

Slaughter is an act of killing or destruction of animals for food purpose and includes all processes and operations on all such animals in order to prepare it for being slaughtered. It is an expert act requires expertise and willingness. Slaughter is necessarily to be performed in a slaughter house recognized or licensed by authority empowered under law for the time being in force to do so.  Only authorized animals are to be slaughtered for food purpose and restricted animals or animals prohibited for slaughter should not be converted into meat in any case. Animals in pregnancy, has offspring less than three months or under the age of three months, animals not certified by veterinarian for fitness should never be slaughtered. Slaughterman should also have a valid license or authorization issued by municipal or other authority. The persons below eighteen years of age and suffering from communicable or infectious diseases shall not be permitted to slaughter an animal.

Slaughtering and dressing of different kinds of animals and birds is an age old practice. Initially slaughtering was done by cutting the throat or stabbing the throat or breast. But today’s world of progress and scientific evolution slaughter methods has undergone material changes. Scientifically there are two essentials of slaughtering i.e. humane slaughter to avoid unnecessary pain and sufferings to the animals and complete bleeding. Legislations require stunning of animals to render them unconscious before bleeding except in Jewish and Muslim slaughter. The animals subjected to slaughter must be clean which is generally achieved by cleaning. The premises and transportation vehicles should also be maintained in good hygienic and sanitary conditions. All the facilities required for slaughter animals and birds arranged well in advance. In commercial plants and export units, slaughtering and dressing is performed on overhead rails but for domestic use, booth and simple rails may serve the purpose due to low throughput. The requirements and systems of overhead rail are mentioned in chapter 1. Some of the requirements are listed in following table

Stomach and intestines are important part of animal body.  Stomach mainly constitutes rumen, reticulum, omasum and abomasums. In which rumen, reticulum and omasum are utilized in form of edible uses, petfood and meat meal while abomasums can be converted into petfood and meat meal but abomasums of suckling calf can be utilized in extraction of rennet. Sheep rumen can also be utilized as haggis casings and pig stomach can be processed as petfood, pepsin, haggis casings and chitterlings. Organic content obtained from stomach and intestines can be utilized in form of compost, fertilizer and sometimes as feed. Intestine is also constitutes large intestine (colon, caecum and rectum), small intestine and oesophagus. In which large intestine and small intestine if not in condition to convert in casings can be utilized by rendering in form of meat meal.

Animal Fibers                   The animal materials like wool, hair, fur, mohair and silk used for weaving, knitting or felting into a fabric are                                                      generally termed as animal fibers. Animals used for the purpose are sheep, goat, llama, alpaca, camel, vicuna                                                and silk worm.

Wool is a thick and wavy animal fiber makes fibrinous protective covering of sheep. There are 170 different types of proteins are found in wool but the major and foremost protein is keratin. It is insoluble in nature and forms most of the part of wool. True wool fiber is basically modified hair that is not shed like the hair of most farm animals and medulla is absent in true wool. Wool contains excessively scaly surface but hair surface is mostly smooth, less elastic. The matured keratinized fiber extruding above the skin is considered dead tissue. Wool fiber is basically originated from follicle situated in dermis or middle layer of skin. Wool fiber is elastic, hygroscopic, retains warmness, durable, non inflammable and transmits ultra-violet light.

Wool is a fibre basically composed of amino acids and have excellent absorbency, moisture regain capacity, tend to warm the human body if used in form of cloths and others, good in elasticity and resiliency but poor in resistance to alkali but acid tolerance is good. To get better utilization of wool, they may be classified into various categories based on their origin, fleece quality, fineness of wool fibres etc.

1. Introduction

For the last years, Peru’s GDP has been continuously growing, and in 2010 the agricultural sector has played a significant role in this process. According to the National System on Agricultural Innovation, the sector has an important contribution in economic and social aspects.Regarding the former, national agrarian production represents 8% of global GDP.
 
Statistics of the Ministry of Agriculture of Peru show that the agricultural sector includes 31% (3 million people approximately) of the country’s Economically Active Population (EAP), and 65% of the EAP in rural areas. The latest agrarian census indicates that almost 5.5 million hectares are used for agricultural activities, which accounts for 15% of the total surface.

The first species of the genus Azotobacter, named Azotobacter chroococcum family Azotobacteriaceae, was isolated from the soil in Holland in 1901. Azotobacter represents the main group of heterotrophic free living nitrogen-fixing bacteria principally inhabiting neutral or alkaline soils. Azotobacter chroococcum and Azotobacter agilis were studied by Beijerinck (1901). In subsequent years several other types of Azotobacter group have been found in the soil and rhizosphere such as Azotobacter vinelandii, Lipman (1903); Azotobacter beijernckii, Lipman (1904); Azotobacter paspali, Döbereiner (1966), Azotobacter nigricans, Krasil’nikov (1949); Azotobacter armenicus, Thompson and Skerman (1981); Azotobacter salinestris, Page and Shivprasad (1991). A. paspali while A. agilis was categorized  under the genus Azomonas (Table 7.1).

Most trees legumes thrive in tropical regions but N2 fixing non leguminous trees are prevalent in temperature conditions. Callatiam and coworkers from U.K. cultivated Frankia for the first time in 1978 in pure culture. A number of non-leguminous shrubs and trees as Alnus, Myrics, Hippophae, Casuarina and Elaeagnus are nodulated by N₂ fixing Actinomycetes, Frankia with Frankiaceae (Actinomycetes), the only acyinomycete reported to fix nitrogen to date. The so called actinorhizal plants include 7 orders, 8 families, 17 genera and 173 species of dicotyledons plants reported by Gaur, (2010), whereas 200 plants and 23 genera were reported by Diagne et al. (2013). Some of the important non-leguminous families and genera are given in Table 12.1.

The microbial community is a gold mine for gene(s) and pathway(s) that encode novel biocatalysts for biosynthetic or biodegradation processes, including degradation of pollutants, synthesis of biofuels and production of novel drugs. Sequencing of the microbial genome will also provide insights into the ecology of  microorganisms that are beneficial to, or threaten, crop production, and that ensure the quality and provision of ecosystem services. These unique genetic and biosynthetic capabilities of microorganisms have made them likely  candidates for solving particular difficult problems in the agriculture. For many years microbiologist and microbial  ecologists have tended to differentiate microorganisms as beneficial and harmful according to their function and how they affect soil quality, plant growth, and yield and plant health.

The quest for drugs from the sea has yielded a remarkable di versity of natural products mostly from invertebrates such as sponges, tunicates, bryozoans etc. These molecules are either in late stages of clinical trials or have already entered the market. There has been an increased emphasis on marine microorganisms as sources of bioactive compounds over the past decade. Marine bacteria alone constitute 10% of the total living biomass carbon of the Earth’s biosphere and they have unique metabolic and physiological capabilities to ensure their survival in diverse habitats. In the marine environment, some microorganisms associate with living and non-living surfaces and the competition amongst these microbes for space and nutrients leads to the production of bioactive secondary metabolites.

Introduction
 
Biodiversity a term to describe variability between organisms or populations of organisms, has different facets depending on the level of diversity considered (Species, population, ecosystem) or the organisms concerned (Barbault, 1992). Biodiversity can be exploited in many ways at scientific levels, the best known and the most ancient no doubt being in taxonomy and systematics, and more recently for studies of population biology, evolution and conservation of ecosystems, or for selection of materials for biotechnology.

Introduction

Foraminifera or forams for short are the most abundant, diverse and widely distributed Protists in marine realm. They are found in all marine environments, from the inter-tidal to the deepest ocean trenches, and from the tropics to the poles (Todo et al., 2005). In some places, foraminifera are so abundant that the sediment on the bottom is mostly made up of their shells. For example, tourists from all over the world get attracted to the pink sands of Bermuda. These sands get their colour from the shells of Homotrema rubrum which has pink to red-colored shells. Living representatives of foraminifera provide ecological data and their mineralized tests are a geochemical record of palaeoclimatic conditions.

Microbial diversity is the key to human survival and economic well being. It provides a huge reservoir of resources which can be utilized for our benefit. Yeasts have been isolated from many sources for industrial purposes. The impact of yeasts on food and beverage production extends many fold beyond the popular notions of bread, beer and wine fermentations by Saccharomyces cerevisiae.

Diverse dynamic mixed populations of prokaryotic and lower eukaryotic microorganisms govern the fermentation and maturation processes and, finally, impact the quality of wine. Both of these parameters apparently contribute to regional differences in the quality of produced wines and characterization of regional wines should involve the study of microbial populations and their members active in the given region.

5.1. Anatomy of the Genitals

5.1.1. Male reproductive system

Testes in the male are oval-shaped present within the scrotum which remain in communication with the abdominal cavity, where they were at birth. The rabbit is actually able to withdraw its testes when frightened or fighting with other males (Fig. 5.1). The testicles descend at about two months. The short, back-slanting penis points forward when erect.

9.1. Handling

Rabbits must be handled very carefully. Although they are generally docile they are apt to struggle when picked up, with potentially harmful consequences. All rabbits are prone to vertebral fractures, and this risk is greatest in hutch rabbits or in those on an unbalanced diet that may have concurrent osteoporosis. It is extremely important to support the back and hindquarters whenever a rabbit is handled.
 
A rabbit should never be picked up by the ears. It can be lifted gently by the scruff of the neck with one hand whilst the other hand supports its bottom (Fig. 9.1), or alternatively lifted with one hand under the chest, and one supporting its hindquarters (Fig. 9.2). The rabbit should be carried against the body to minimize struggling. It is advisable to place the rabbit’s carrying box on the floor so that if it does jump as it is picked up it does not hurt itself. Similarly it is usually easier to return the rabbit to the box on the floor at the end of the examination.

Livestock is an important source of income for the rural poor and marginal farmers which enables earn income and food security using common resources.It is a best option to utilize such waste resources in proper way to earn income. About 65-69% of Indian population consisting of small and marginal farmers and land less laborers reared animal as supplementary occupation by feeding their animals agriculture by products. Indian agriculture is very difficult to sustain without dairy animals. Per capita availability of milk comes out to 281gm per day, which is below than the average of 300gm recommended by Nutrition Council of ICMR. Thus, there is a further need to increase the milk production of the country in view of minimizing difference between per capita availability and requirement. Milk production in India has increased from a modest 22 million tons during 1970-1971 to about 122 million tons in 2011—2012 (Deptt. of Animal Husbandry and Dairying).

Dairy buffalo production has been a tradition in Asian region and some other parts of the world where fresh  buffalo milk, dahi (cultured sour milk), ghee (butter oil) and yoghurt are very popular. In Italy, the dairy buffalo industry is flourishing; thanks to the popularity of buffalo mozzarella cheese. Because of the market for Mozzarella, buffalo farming is a profitable enterprise and is carried out in an organized manner with modern equipment.

Introduction

In India 70 to 75 per cent of the indigenous cattle and buffaloes are designated as non-descript that is they do not come under any well defined breed. Among the animals of defined breed also, less than 5-10 per cent of the population can be considered as elite and used for the production of breeding stock. Average productivity of cross-bred and desi cows is 2141 kg/lactation & 634 kg /lactation, respectively, which is still very low. The average productivity of buffaloes is 1355 kg/lactation only.

Introduction

Agricultural biodiversity must be an integrated part of climate change adaptation and mitigation efforts. Climate change adaptation, biodiversity conservation and poverty alleviation should complement each other (FAO, 2007, 2008). Climate affects vectors, pathogens, hosts and host-pathogen interactions from the level of cellular defence to that of the habitat. Hoberg et al. (2008) provide an overview of predicted responses of complex host-pathogen systems to climate change. Climate change may affect the spatial distribution of disease outbreaks, and their timing and intensity (Epstein 2001). Outbreaks of African horse sickness, peste des petits ruminants, Rift Valley fever, bluetongue virus, facial eczema and anthrax are triggered by specific weather conditions and changes in seasonal rainfall profiles.

3.1 What is environment ?

The word environment is derived from a French word “environne” means to encircle or surround. Environment is defined as the circumstances or conditions that surround an organism or group of organisms. It is also defined as the complex of social or cultural conditions that affect an individual or community. Since humans inhabit the natural world and they build social, cultural and technological world, all constitute important parts of our environment.

7.1 What is Pollution?
 
Pollution is a contamination of the environment by man-made substances or energy that has adverse effects on living or non-living matter. In simple terms, pollution can be seen as the wrong substance in the wrong place in the wrong quantities at the wrong time. This implies that harm is caused to the environment if the same substance is present at levels too low.

Types of pollution
Pollution can be categorized according to the medium in which it occurs such as

Soil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur. Plants also need small quantities of iron, manganese, zinc, copper, nickel, chlorine, boron and molybdenum, known as trace elements because only traces are needed by the plant. The primary nutrients are nitrogen, phosphorus and potassium, because they are required in larger quantities than other nutrients. These three elements form the basis of the N-P-K label on commercial fertilizer bags. As a result, the management of these nutrients is very important. However, the primary nutrients are no more important than the other essential elements since all essential elements are required for plant growth. Remember that the ‘Law of the Minimum’ tells us that if deficient, any essential nutrient can become the controlling force in crop yield.

Preamble

Crop nutrient management in the climate change scenario is carried out with the basic understanding of nutrient concentrations in soils, plants and their transformations but these strategies might not apply under changed climate conditions where there is an overall change in the environment. It is understood that nutrient acquisition by plants from the soil is closely associated with overall biomass and strongly influenced by root foraging area. It is speculated that change in soil factors due to climate change could restrict root growth and nutrient stress would also occur. Plant size may also change but nutrient concentration may not change; therefore, nutrient removal will scale with growth. The interaction of mineral behavior in the soil with global climate change variables is poorly understood.

Since the 1960s, the world population has doubled from three to seven billion, and this trend will persist in the coming decades. Because of this rapid expansion, a massive increase in crop production is required to meet the food and energy demands of future generations. Potassium is the third important plant nutrient after nitrogen and phosphorous. It is seventh most abundant element in the lithosphere. Being chemically active metal, it is never found in its pure elemental state in nature. Potassium (K) plays a particularly crucial role in a number of physiological processes vital to growth, yield, quality, and stress resistance of all crops. The K content of Indian soils varies from less than 0.5–3.0%. The average total potassium content of those soils is 1.52% (Mengel and Kirkby 1987).

Low bioavailability of phosphorus (P) in soils is one of the major limiting factors influencing crop production throughout the world. Plants, however, are known to possess potential adaptive mechanisms at morphological, physiological, biochemical, and molecular levels to overcome P deficiency (Vance et al., 2003). Such adaptive mechanisms mainly include an increase in total root length and root hair growth (Bates and Lynch, 2000), enhanced organic acid (Singh and Pandey, 2003), acid phosphatase (Pandey, 2006) and ribonuclease (RNase) secretion into the rhizosphere (Hocking, 2001), increase in expression of proteins such as phosphatase, inorganic phosphate (Pi) transporter, RNase and phosphoenolpyruvate carboxylase (PEPcase) in plant tissues.

Introduction

Organic matter in soil is the key to soil health. SOM improves many physical, chemical, and biological characteristics of the soil, including water holding capacity, cation exchange capacity, pH, buffering capacity, and chelating of micronutrients. Furthermore, well decomposed SOM improves soil structure by increasing aggregation, enhances biological activities in the soil, slowly releases nutrients, and suppresses some diseases. A loss of SOM can lead to soil erosion, loss of fertility, compaction, and general land degradation.

True/False
 
Q.1.    The set of observations or measurements collected on specific characteristics from each item (individual) constitutes data.
Q.2.    Each characteristic that is measured or observed, varies from item to item and is called “Variable”.
Q.3.    “Blood type”, “stage of disease” and “weight” observed on a group of cancer patients, are three distinct variables.
Q.4.    A variable that can be expressed in numbers such as age, height, blood pressure, is said to be “Quantitative variable”.

True/False

Q.1.    The set of all possible outcomes of a variable along with the frequency (the number of occurrence) of each outcome or a group of outcome is called “Frequency Distribution”.
Q.2.    The frequency of an occurrence of each outcome of a trail divided by total frequency is known as “Relative frequency” of the outcome.
Q.3.    The distribution of total probability “1” into probabilities of occurrence of each outcome of a trial, is known as probability distribution of the outcome.

True/False

Q.1.    Collectivity (totality) of all sampling units is known as the “Population” and population size is denoted by “N”.
Q.2.    A list of all sampling units with their identification is known as “Sampling frame”. For example a list of all newly-born children in maternity home during a period of three months with specification of their sex, weight, name of their parents, their permanent address, etc. is known as sampling frame.
Q.3.    A function of all sampling units in the population is known as population parameter or population constant.

True/False

Q.1.    The process of knowing all the relevant information from the known sample to the unknown “Population parameter” is known as “Statistical inference.”
Q.2.    The method of estimating the unknown parameter of the population on the basis of known sample values is known “Estimation method.”
Q.3.    The “Point estimation and Interval estimation” are the two methods of estimating the unknown parameters of the population.

True/False

Q.1.    In clinical practice and in public health, the objective is to find better ways to ‘prevent,  diagnose and treat disease’.
Q.2.    Among all research designs, experimental study designs are the most reliable and  ideal designs to evaluate the ‘effectiveness or value’ of interventions (like drugs,  medication etc.) for human disease and disabilities.

True/False

Q.1.    In many clinical research studies, the regression analysis is used to develop models for prediction of an outcome from one or more explanatory variables.
Q.2.    Now a days, the linear, logistic and Cox (proportional hazards) regression models are used frequently in medical research.

SYNOPSIS

Food is an essential element without which human being cannot survive. We need it for our maintenance and growth everyday and through the longevity of our life. As we understand food, it is a bunch of essential elements which is essentially needed for the engine of human body to run non-stop. The understanding of food is much required by masses who consume it every day. The present paper attempts to describe the knowledge on food, feeling on food by consumers, prevailing food, hunger and malnutrition, healthy food and studies required on consumable foods.

SYNOPSIS

There is an increasing awareness about quality of food among consumers all over the world. Organically produced food is considered to be nutritionally superior, but the available information is not conclusive.

SYNOPSIS

Inspite of the fact that governments in various food summits and conferences have made commitments on food and nutrition security, presently more than a billion people are suffering from hunger and malnutrition worldwide. The food and nutrition policies need to be revisited and updated to address both man-made food scarcities and natural disasters of present and future to mitigate hunger and malnutrition.

The present publication has highlighted the issues on different aspects of food sector expressed by very distinguished authors. The issues have been discussed and illustrated how we conceive food as an item, what and how much food is known to consumers, what are common food sources, the relationship between food and health, food and nutrition security programmes in different regions of the world and how do we perceive food and nutrition policy challenges?

Food security is one of the most important issues during this century under the projected climate change scenario. The world is facing severe food crisis due to weather vagaries as a part of global warming and climate change. One sixth of world’s population is under starvation. It is estimated that 300 million people in the world do not get food three times a day. About 18,000 children die every day due to malnutrition. Many Asian-African countries are under severe food crisis. It is also estimated that out of the World’s most hungry people, 29 per cent is in India. 47 per cent of children below three years of age are suffering from malnutrition problem. 75 per cent of world’s population is dependant on agricultural activities for their livelihood. Therefore, there is an urgent need to produce more and more foodgrains at the global as well as national levels to meet the food requirement of growing population under the projected climate change scenario. There has been a major decline in world rice production since late 2007 due to various reasons including global warming and climate change in top rice producing countries. Deficit monsoon over India during 2009 resulted to poor foodgrains production including rice as the area under rice cultivation was less. There were also devastating floods in southern States of India viz., Andhra Pradesh and Karnataka. Andhra Pradesh, one of the major rice producing states of India, was affected first by drought and then by floods. Thus rice production decline in India was a real set back in 2009. Similar was the case in 2010 due to excess rain during monsoon and floods during NE monsoon across the rice growing regions. At the same time, Philippines got hit by two major typhoons in September-October, 2009 causing damage to rice crop on ground. Approximately one million tonnes of rice in storage also got damaged. These events resulted to low world rice production over the country in 2009. The immediate impacts of global warming and climate change on rice production systems and food security will be felt in the form of adverse effects of extreme weather events such as floods, droughts, heat and cold waves, hailstorms and cyclones on rice production. Less immediate but significant impacts are anticipated due to changes in mean temperatures, increasing weather extremes and sea level rising.

Indian floriculture industry is shifting from traditional flowers to cut flowers for export purpose. The liberalized economy has given an impetus to Indian entrepreneurs for establishing export oriented units (EOUs) under controlled climatic conditions.

The wide variation in the agro climatic conditions in India permit us to grow various types of tropical and subtropical plants and flowers. Though such plants grow successfully without cover, they fail to meet the export requirements of being seldom blemish free. High quality ornamental plants meant for export should be scientifically grown only in plastic, glass or fiberglass greenhouses, or at least under partial cover. Though initial investment is high in protected cultivation, the products in them will obtain far more attractive prices.