eChapters

9.1 Introduction
In the preceeding chapter, we have studied the estimation part of statistical decision (inference) infered about the parameters of the population on the basis of information available in the sample observations drawn from the parent population under study. In the present chapter we discuss the problems related with the tests of statistical hypothesis and its significance about the population parameters under study. For understanding of the subject matter considered in this chapter, very clearly and easily, one must be familier with the statistical terminologies used in the subject matter. Hence we discuss the various notable terminologies with some suitable examples in a simple way for better understanding.

9.1 Introduction

In the preceeding chapter, we have studied the estimation part of statistical decision (inference) infered about the parameters of the population on the basis of information available in the sample observations drawn from the parent population under study. In the present chapter we discuss the problems related with the tests of statistical hypothesis and its significance about the population parameters under study. For understanding of the subject matter considered in this chapter, very clearly and easily, one must be familier with the statistical terminologies used in the subject matter. Hence we discuss the various notable terminologies with some suitable examples in a simple way for better understanding.

4.1 Write True/False

4.1.1 Preliminaries

Q.1    In selection of a test, one should try to keep the probabilities of both types of error small.
Q.2    Under a non-sequential sampling scheme (i.e. fixed sample size n), it is not possible to minimise both the errors at the same time.

Increased ketone bodies level in blood, known as ketonemia and condition is ketosis. The disease respond readily to treatment with glucogenic substances which can be one of the test therapy to differentiate this condition from milk fever and hypomagnesemia. The efficacy of this therapy can be estimates through estimation.

Collection of blood samples

Collection of blood sample is already discussed in exercise no. 4.

Purpose: This test is conducted to determine the boldness and soundness of the seeds. The weight of a given number of seeds of different varieties or kinds will vary. This variation is due to boldness and soundness of the seeds. The seeds will vary according to the soil fertility, variety and other environmental conditions. Higher the weight of a variety per thousand seeds, better is the variety for cultivation.

Materials and equipments: Scale, balance and seeds.

• Spray Angle — The angle subtended at the final orifice by the edges of the spray pattern.
• Variation in discharge rate between first and last observation shall not be more than 5 percent.
• The volumetric efficiency requirement for roller vane type pump shall be minimum 80 percent.
• The volumetric efficiency of piston, plunger type pump shall be minimum 80 percent.
• If the droplet size is reduced from 2 mm to 1 mm, number of droplets produced will increase by 8 times from the same volume.

The objective of correct pesticide application cannot be achieved without good quality Plant Protection Equipment. A sound designed machine shall be proficient as far as pesticide distribution and delivery to the target in minimum time with least wastages is concerned. Hence, the machines should be tested to ascertain that they are:

Introduction

Seeds are regarded as carriers of new technology and serve as basic catalytic input for enhancing the agricultural production. Hence the timely availability of quality seeds of the right variety in adequate quantity decides the strength of an agricultural economy. The intensive crop improvement programmes have resulted in the development of large number of hybrids and high yielding varieties in many important crops. Today, the Indian seed industry is the fifth largest seed market in the world, accounting for 4.4 per cent of global seed market. In terms of global trade, India is almost self-sufficient in flower, fruits and vegetables and field crops seeds (Anonymous, 2015). Economy of crops depends on good crop variety. Farmers choose these verities based on good quality traits and satisfactory yield. Thus, it is always essential to do fidelity check of all plant variety. The genetic purity is one of the most important aspects of quality control. Seed quality includes good germination, purity, seed health and vigour. With the increase in seed industry, there has been a refinement in the techniques used for testing genetic purity or genuineness of seed purity. Methods for testing genetic purity include different morphological, chemical, biochemical and molecular markers. Under PPV & FR Act, DUS (distinctiveness, uniformity, stability) testing procedure is performed with morphological descriptors. However, in agriculture, biotechnology has found applications in checking of true to type of clones and variety identification programs using molecular and chemical markers. Markers that reveal polymorphisms at the protein level are known as biochemical markers, while DNA markers reveal polymorphisms at the DNA level.

Hypothesis testing is the statistical procedure used in order to accept or reject statistical null hypotheses. One of the major purpose for which we formulate the hypothesis is, to test the statistical significance of the relation, difference or variation etc. among given sample/s at a given point of time or at different time points.

Introduction
Some species of rod shaped bacteria e.g. E.coli, Ps. fluorescence, Bacillus subtilis are known to be motile. Bacterial motility is generally associated with the presence of hair-like appendages called “Flagella”. There are several ways for determining the motility of a culture such as the wet mount method, hanging drop method and a culture method (on semisolid medium). Bacterial cells in suspension also exhibit a vibratory or oscillatory movement without changing their relative position. This is termed ’Brownian Movement’ and it should not be confused for true motility of bacteria. In motility the cells change their relative position and move across the microscopic field in different directions.
1. The Wet Mount Technique
This is the simplest and quickest way to determine the motility of bacteria.
Materials
1. Clean glass slide
2. Broth culture of bacteria (E.coli, Ps.fluroscenes)
3. Cover glass
Procedure
1. Place a drop of organisms on clean glass slide and cover with a cover glass.
2. Examine the slide with phase contrast microscope or bright field microscope with reduced light under oil-immersion.

Introduction

Test of pollen viability (extent of pollen viability) is important in pollination experiments to ensure fertility/seed setting. It is also important in monitoring state of pollens during storage in ecological/ taxonomic studies as well as during research on pollen biochemistry, genetics, stigma interactions, and incompatibility studies. Pollen viability refers to the ability of pollen to accomplish post-pollination events to achieve fertilization. Pollen viability test has gained importance particularly in plant breeding and hybrid seed production experiments/ practices. In this chapter, you will be acquainted with the basics of pollen viability test. However, for more professional knowledge on the topic readers are suggested to refer specialized books.

Pollen Viability Test

It is important to know the extent of viability of pollens used in pollination experiment, in finding fertility of a plant of interest, to monitor state of pollen on storage, in ecological/taxonomic studies, as well as in research on biochemistry, genetics, stigma interaction, incompatibility assay, etc. of pollen. Several pollen viability tests have been developed time-to-time. It is recommended to initially use different tests for a given pollen type to find out the most appropriate method that provides reliable result on pollen viability. It is important to note that every procedure requires standardization of protocol according to the sample used. Following different tests are used for assessing pollen viability.

1. In-vitro Pollen Germination Test

It is a simple, speedy, and quantitative test for assessing pollen viability. In this method, a collection/sample of pollen is germinated in vitro and observed under microscope. The percentage of germinating pollens (producing pollen tube) after appropriate treatment and a given period of time is determined. The percentage provides an index of viability of the pollen sample.

True/False

Q.1.    A hypothesis that sets the fundamental objective of scientific study is called the “Research hypothesis”.
Q.2.     A statistical assumption or statement about the unknown parameters of a population is known as Statistical hypothesis.

With increasing industrialization, water sources available for consumption as potable water are being adulterated with industrial, animal and human wastes. As a result water has become a formidable factor in disease transmission. Polluted water usually contains large amount of organic matter which forms nutritional base for growth and multiplication of microorganisms. Usually the water with non-pathogenic organisms, like autotrophs and saprophytic heterotrophs, are not of major concern, but presence of intestinal contaminants of fecal origin are of great concern. These pathogens are responsible for intestinal infection such as bacillary dysentery, typhoid fever, cholera and paratyphoid fever.

The detection of all the intestinal pathogens on a routine basis would be a tedious and difficult task, however, it would be easy to demonstrate the presence of some of the nonpathogenic intestinal organisms like Escherichia coli and Streptococcus faecalis. These are always found in intestine but their detection confirms the contamination of water with fecal material. Such organisms are also called pollution indicator.

The pioneering German microbiologist, Robert Koch, identified a set of four conditions that need to be satisfied to establish that a particular organism is the causative agent of a particular disease. These conditions, known as Koch’s postulates, are:

1. The suspected pathogen must be found associated with the disease in all the diseased plants examined.

2. The organism must be isolated from the diseased tissue and grown in pure culture on nutrient media, with its characteristics described (non obligate parasites) or in a susceptible host plant (obligate parasites), and its appearance and effects recorded

Introduction

Seed is a living entity (mature ovule) consisting of a tiny plant in embryonic stage along with the stored food protected by an outer layer known as seed coat. Seed is an important biological input in agriculture, which is economically important for successful crop husbandry. Cotyledons serve as the source of nutrients (proteins, carbohydrates, and oils) that not only nurture the plant at the early developmental (seedling) stages of plant but also the vegetarian (heterotroph) organisms. Being one of the important inputs in agriculture, viability of seed needs to be assessed to know the germination percentage of seeds used to raise a crop. Since viability of seeds may deteriorate on storage depending on the storage conditions. Therefore, often it becomes important to test viability/germinability and vigour of seeds before being used for raising a crop or conducting an experiment. In this chapter, we briefly discuss about the different methods which can be used for testing the viability of seeds.

Seed Viability

Seed viability can be defined as the capability of the seed to germinate and produce a normal seedling within a specified period. In other words, seed viability indicates how many seeds in a lot are alive and could develop into plants under appropriate field conditions. It is very important that most of the stored seeds are capable of germinating when sown in a field. They must possess higher viability at the beginning of storage and maintain it over the storage. A seed with high initial viability survives longer in storage; however, the viability deteriorates slowly at first and then rapidly as the storage prolongs. It is important to know the duration of storage after which a considerable decline in viability occurs under given storage conditions so that to take necessary action to revive the seeds. Excessive deterioration in vianility of seeds may lead to loss of the seed/material/ germplasm.

9.1 Introduction

The tests used to ascertain whether the differences between estimator and the parameter or between two estimators are real or due to chance are called tests of hypothesis or tests of significance. In other words, the procedures, which enable us to decide whether to accept or reject hypothesis, are called tests of hypothesis or tests of significance. The following terms are commonly used in testing of hypothesis

8.1 Statistical Hypotheses

in attempting to reach decisions about the populations, it is useful to make assumptions or guesses about the populations involved. When the assumption or statement about a phenomenon occurring under certain conditions is formulated as proposition it is called a scientific hypotesis. We can construct criteria by which a scientific hypothesis may be ‘the  yield of a new paddy variety will be 3500 kg per hectare’. In statistical language it may be stated as ‘the random variable (yield of paddy) is distributed normally with mean 3500 kg/ha’. Such a statement or proposition about the probability distribution of a random variable is called the statistical hypothesis.

The growing chemicalization of milk presents a great challenge to the dairy industry. A number of chemical compounds get entry into milk, intentionally or un-intentionally, through their direct or indirect usage for crop, animal; or dairy husbandry practices, as environmental contamination. Several of these contaminants may be naturally present on grazing grass or use as pesticides for green fodder or they may get entry through use of compounded animal feeds. These eventually get excreted into milk as residues and pose problems to food safety. The risk of health hazards arises from veterinary drugs, residual pesticides, heavy metals, detergents and micotoxins etc. It is therefore, become necessary to detect these contaminants in order to make food safe for human consumption.

Detection of Aflatoxin M 1 in Milk

Material requirements : Glass column(30 cm x 1 cm), Silica gel (63-200 µg particle size), volumetric flasks, beakers, micro pipette, HPLC equipment fitted with C 18 column(25 cm x 4.6 mm) and fluorescence detector.

Reagents: Sodium chloride solution (400g in 1000ml water), acetonitrile/water mixture (25:75), sodium sulphsate, chloroform, toluene/acetic acid mixture (9:1), acetonitrile/diethyle ether/hexane mixture (1:3:6), chloroform/acetone mixture (8:2), n-hexane and aflatoxin standard ampule.

Preparation of stock solution : Transfer contents from 2.5ml or 0.5ml ampoule, quantitatively, to 25ml or 50ml volumetric flask respectively. Rinse ampoule with small quantities of chloroform and collect rinsing into flask. Makeup the volume with chloroform, mix well and store at 5º C or below. These solutions will contain 1 µg per ml aflatoxin M1.

Working solution : Transfer 0.5ml of stock solution to a 10ml conical flask. Evaporate contents to dryness using inert gas. Dissolve residue in 10ml of acetonitrile/water mixture. Prepare series of dilutions containing 0.0025, 0.005, 0.01 and 0.025 µg/ml aflatoxin. Similarly treat 5ml of stock solution to give a concentration of 0.5 µg/ml.

It is a non-contagious, nonfebrile infectious disease of mammals caused by toxin of Cl. tetani and characterized by sposmodic contraction of skeletal muscles.

Etiology: It is caused by Cl. tetani. It is a Gm⁺, slender bacillus, 4-8μ X0.5μ in size. It has a straight axis, parallel sides and rounded ends. It occurs singly and occasionally in chains. The spores are spherical, terminal and bulging, giving the bacillus the characteristic 'drum stick' appearance. It is non-capsulated and motile by peritrichate flagella. Young cultures are strongly Gm+ but older ones may be Gm-. Cl. tetani is widely distributed in soil and in the intestine of man and animals. Soil may have good concentration O organisms if it is fertilized with animal manure. Some strains have been identified but they have same antigenic type of toxin and can be neutralized by single toxin. There are two types of antigen H (flagella) and O (somatic). The H antigen is thermolabile and O antigen is thermostable and responsible for spasms.

It is an obligatory anaerobe that grows only in the absence of O₂ It grows on ordinary media. Growth is improved by blood and serum but not by glucose. The spores are very much resistant and can persist in the soils for even years. The spores can be destroyed by boiling at 115°C for 30-60 min.

The organisms produce 3 types of toxins. The toxins are tetanospasmin (neurotoxin), tetanolysin (haemolysin) and fibrinolysin. Tetanolysin is a heat labile, O₂ labile haemolysin antigenically related to the O₂ labile haemolysin produced by Cl. welchii. This lysin is active against RBCs of several animal species. Tetanospasmin is responsible for clinical manifestation of tetanus. It is O₂ stable but relatively heat labile. It gets toxoided spontaneously or in presence of low concentration of HCHO. It is a good antigen and is specifically neutralized by the antitoxin. It exists in two forms. A monomer of MW 68,000 which is toxic and a dimer which is non-toxic but antigenic. The purified toxin is active in extremely small amounts and has an MLD for mice of about 50-75X10^-6 mg. Horse is the most susceptible animal. Guinea pig, mice, goats and rabbits are susceptible in that descending order. Birds and reptiles are highly resistant. Frogs which are insusceptible, may be rendered susceptible by elevating their body temperature.

Tetanus is a specific infectious disease caused by the exotoxin of tetanus bacilli, usually growing in necrosed tissues, absorbed by the motor end plates of the peripheral nerves, carried to the central nervous system and manifested as lockjaw and paroxysmal spasmodic contraction of other muscles.

Tetanus bacilli present in the soil especially one contaminated by faeces of a horse or of a similar animal, enters through some skin abrasions and remain localized at the site. These are thereafter removed by phagocytes but if any lacerated tissue is present, more so if contaminated by pyogenic bacteria, these multiply and manufacture a highly potent exotoxin which is absorbed through the motor nerve end-plates in the muscles carried to the motor cells of the central nervous system, the sensory ones not being affected.

The posterior root ganglia act as filter preventing the toxin from entering into the spinal cord, the anterior root is thus only affected.

Abstract

Food texture is one of the most widely measured quality attributes during postharvest handling, processing, and consumption. Given the subjectivity in human perception of food texture, texture measurement remains a complex exercise and thus presents both a charm and challenge for researchers and industry practitioners. For fresh foods such as fruit and vegetable, textural properties such as firmness are widely used as indices of readiness to harvest (maturity) to meet requirements for long term handling, storage and acceptability by the consumer. For processed foods, understanding texture properties is important for the control of processing operations suchasheating, frying and drying to attain desired quality attributes of the end product. Texture and viscosity measurement is one of the most common techniques and procedures in food and postharvest research and industrial practice. Foods are complex systems exhibiting various degrees of elasticity, viscosity, and plasticity. Because of its complex structure and mechanical behavior, objective measurements of food texture may be influenced by a variety of test conditions, including rate of loading, the magnitude of deformations imposed upon the material, geometry of the loading surface, and localized yielding within the product tested. Various approaches have been used to evaluate the sensory attributes of texture in foods. However, the high cost and time consumption of organizing panelists and preparing food limit their use, and often, sensory texture evaluation is applied in combination with instrumental measurement.

The process of converting the frozen semen to liquid state while retaining maximum semen quality is called thawing. The process of thawing is as important as freezing as there is equal probability of loss of semen quality in freezing and thawing. Therefore, great care should be taken while thawing to insure that it is done with minimum loss of sperm quality. There are two methods of thawing:

1.    Rapid thawing

2.    Slow thawing

The effectiveness of each method of thawing depends upon the extender composition and freezing procedure. With any thawing procedure, the recommendations of the semen supplier should be followed. The thumb rule is that rapid freezing rates require rapid thawing.

There is a great need to reduce the input costs and at the same time improve the farm productivity in a sustainable manner. A model has been worked out based on a number of field demonstration studies in different parts of India, Africa and Far Eastern countries. A model in which input cost can be reduced by nearly 20 percent and at the same time the crop production can be enhanced upto 20 percent is possible and can be a boon to farmers in most parts of the world. This is the model, which can be easily adopted in an evolutionary way. As suggested by Jonathan Foley (BOX – 1), use of high-tech, precision farming systems, as well as approaches borrows from organic farming, we can boost farm productivity substantially.
Among 8 millennium goals, eradication of poverty and hunger and environmental sustainability are perhaps the most prominent and complementary. The Green Revolution changed India from (and many other countries) from being food deficit to food sufficient / surplus state. Time is now for a new and Sustainable Revolution.
If we look at the challenge that agriculture sector has to face during the next few decades, it is clearly to double the food production by 2025 and triple it by 2050 on less per capita land, with less water and under environmentally challenging conditions.
Let us look at the current scenario and some major developments.
• Indian farmers spend nearly Rs.2 Lakh crores (1 Lakh = 100000& 1 Cr
= 10 Million) on inputs like seeds, fertilizers, pesticides.
• Nearly Rs.50,000 crores goes as fertilizer (chemical) subsidy.
• Excessive use of chemical fertilizers in India hasreduced soil fertility and food production (Green Peace & Vishwa Bharti report – 2009). Fertilizer use efficiency is drastically declining. (It has already come down from 19 Kg food grains per kg fertilizer in mid 60s to 12 kg/kg in 2007).
• Our soils are hungrier for organic carbon. The carbon transfers and trans-formations at the soil or even the cell level can delineate the other nutrients such as N, P, S etc that become available to plants and microorganisms.

Higher Farm Production with Lower Input Cost

There is a great need to reduce the input costs and at the same time improve the farm productivity in a sustainable manner. A model has been worked out based on a number of field demonstration studies in different parts of India, Africa and Far Eastern countries. A model in which input cost can be reduced by nearly 20 percent and at the same time the crop production can be enhanced upto 20 percent is possible and can be a boon to farmers in most parts of the world. This is the model, which can be easily adopted in an evolutionary way. As suggested by Jonathan Foley (BOX – 1), use of high-tech, precision farming systems, as well as approaches borrows from organic farming, we can boost farm productivity substantially.

Introduction

With the growing population, increase in demand, and per capita income, tremendous pressure is put on the supply side, pushing them to rely on unsustainable practices to meet this existing and future demand. Compromising on sustainability has not only been responsible for climate change but also other negative environmental externalities. The modern agricultural corporate structure known as agribusiness, which can introduce sustainable and innovative technology into the agricultural sector, would pave the way for achieving all the sustainability dimensions, viz., social, economic, and environmental. With this expanding agribusiness sector, farmers can create a win-win alliance that maintains environmental harmony and financial success. There seems to be a huge scope to achieve sustainability goals well in advance by exploring the pathways with the help of the agri-business sector.

As the global population continues to grow, there will be an ever-increasing demand placed on the agricultural industry to provide more food as well as other raw materials. It is anticipated that farmers will need to produce 70% more food than is currently cultivated to feed up to 10 billion people by the year 2055 (Alexandratos & Bruinsma, 2012). However, the situation is aggravated due to shrinking cultivated areas, depletion of natural resources, higher production costs, fewer farmers, and climatic changes. We are in the middle of a perfect storm of social, economic, and environmental pressures on the food supply around the world. Along with the increasing production and productivity, it has to be taken care of that the natural resources and environment are not exploited indiscriminately. Agriculture is both a threat to climate change and a possible way to stop it. Therefore, sustainability in agriculture is the only way forward. This commitment rests not only with the governments but with all the players in the agricultural supply chain. A holistic approach that concurrently tackles issues of environmental integrity, social equality, and economic prosperity is what we mean when we talk about sustainability. Over the course of the previous few decades, its significance to businesses operating in virtually all fields has grown substantially.

Advertising is a strategic communication tool used to promote products, services, or ideas to a target audience. Effective advertising writing is both an art and a science, combining creativity with persuasive techniques to influence consumer behavior. This chapter explores the step-by-step process of writing compelling advertisements that resonate with audiences and drive action

Understanding the Target Audience

Effective advertising begins with a deep understanding of the target audience. Without knowing the people you aim to reach, even the most creative and well-crafted message may fail to generate the desired impact. The advertising writing process is not just about selling a product or service; it is about communicating in a way that resonates with the audience. This chapter delves into the importance of audience analysis, key factors to consider, and how to apply this knowledge to craft compelling advertising content

Importance of Understanding the Target Audience

The success of any advertising campaign hinges on audience relevance. Advertisers must know who their audience is, what they want, and how they think. The primary benefits of understanding the target audience include:

Advertising is a strategic communication tool used to promote products, services, or ideas to a target audience. Effective advertising writing is both an art and a science, combining creativity with persuasive techniques to influence consumer behavior. This chapter explores the step-by-step process of writing compelling advertisements that resonate with audiences and drive action.
Understanding the Target Audience
Effective advertising begins with a deep understanding of the target audience. Without knowing the people you aim to reach, even the most creative and well-crafted message may fail to generate the desired impact. The advertising writing process is not just about selling a product or service; it is about communicating in a way that resonates with the audience. This chapter delves into the importance of audience analysis, key factors to consider, and how to apply this knowledge to craft compelling advertising content.
Importance of Understanding the Target Audience
The success of any advertising campaign hinges on audience relevance. Advertisers must know who their audience is, what they want, and how they think. The primary benefits of understanding the target audience include:

Advertising is a strategic communication tool used to promote products, services, or ideas to a target audience. Effective advertising writing is both an art and a science, combining creativity with persuasive techniques to influence consumer behavior. This chapter explores the step-by-step process of writing compelling advertisements that resonate with audiences and drive action.
Understanding the Target Audience
Effective advertising begins with a deep understanding of the target audience. Without knowing the people you aim to reach, even the most creative and well-crafted message may fail to generate the desired impact. The advertising writing process is not just about selling a product or service; it is about communicating in a way that resonates with the audience. This chapter delves into the importance of audience analysis, key factors to consider, and how to apply this knowledge to craft compelling advertising content.
Importance of Understanding the Target Audience
The success of any advertising campaign hinges on audience relevance. Advertisers must know who their audience is, what they want, and how they think. The primary benefits of understanding the target audience include:
1. Personalized Messaging – Tailoring advertisements to suit specific demographics, psychographics, and behaviors increases engagement.
2. Effective Resource Utilization – Focusing efforts on the right audience optimizes marketing budgets and enhances return on investment (ROI).
3. Stronger Brand Loyalty – When consumers feel that a brand understands them, they are more likely to develop long-term connections with it.
4. Higher Conversion Rates – Understanding customer pain points and preferences leads to more persuasive messaging and increased sales.

10.1. Introduction

Decision-making is a fundamental aspect of human life, influencing choices in both personal and professional settings. Every individual, whether consciously or unconsciously, engages in decision-making daily, ranging from simple tasks like selecting a meal to complex strategic planning in organizations. However, decision-making becomes increasingly challenging when multiple conflicting criteria are involved. The presence of numerous factors, each with varying degrees of importance, often creates ambiguity and uncertainty, making it difficult to arrive at the most suitable option. To address these challenges, structured decision-making methodologies have been developed to provide a systematic and logical framework for evaluating alternatives.

One such widely recognized method is the Analytical Hierarchy Process (AHP), introduced by Thomas L. Saaty in the 1970s. AHP was designed to assist decision-makers in breaking down complex problems into a structured and systematic hierarchy. This approach allows for a step-by-step evaluation of different factors, making it easier to analyze their relative importance. By structuring a problem into different levels - such as goal, criteria, sub-criteria, and alternatives - AHP provides clarity in decision-making and enhances consistency in judgments. The method is particularly beneficial when dealing with decisions that involve both tangible and intangible factors, as it allows subjective preferences to be quantified systematically (Saaty, 2008).

Nutrition involves various bio-chemical and physiological activities which transformfeed elements into bodyelements. These feed elements are nutrients which are digested, absorbed, utilized to build and renew the components of the animal body. As a result, animal grows and produces-milk, eggs, wool with the help of energy so produced in the body. Afterweaning, most of our farmanimals obtainall of their feedsupply from plants.Barringcarnivores, theplant kingdom is the original and essential source of all animal life, because plants are able to utilize the energy of the sun to build substances which nourishthe animal. Plants make use of carbon dioxide, water and mineral salts to form carbohydrates, fats and proteins which are utilized in the life processes of animal body. Thus plants store and animals dissipate energy.

Plants and their parts

Animal body and plants contain the same substances but they differ in relative amounts. There are also much larger compositional differences among species than do animals. Water is the principal constituent of living plants as well as animal body. With the maturity of seed, water content decreases. The dry matter of plants consists principally of carbohydrates, which serve as both structural and reserve material, while in animals, protein comprises the structure of the soft tissues and fat is the reserve. Thus, animal body contains only a trace of carbohydrate, though occurring as much less than 1 per cent at any given moment, because it is constantly beingformed and broken down in metablolism. Whereas, this is the principal constituent of most of the plant species. Protein is the main constituent of active tissues and thus leaves are much richer in this nutrient than are stems. Grass hays contain less protein than leguminous hays. When theplant matures, there isgradualmovementof protein fromthe vegetative parts to the seed. Thus, the seed contains a higher percentage of protein than the rest of the plant, as in grains and stovers.

Introduction
Antimicrobial resistance (AMR) has become a major worldwide health issue, requiring the search for natural, safe, and efficient substitutes for synthetic antibiotics. The ancient medical system known as Ayurveda lists a variety of polyherbal compositions having jwaraghna (antipyretic) and krimighna (antimicrobial) qualities. A traditional decoction preparation that is frequently prescribed for microbial infestations (krimi), wound infections, fevers, and skin conditions called Nimbadi Kwatha.Strong herbs that have been separately shown to have antibacterial and immunomodulatory properties, including Nimba (Azadirachta indica), Guduchi (Tinospora cordifolia), Triphala (Haritaki, Bibhitaki, Amalaki), Vasa (Adhatoda vasica), and Katuki (Picrorhiza kurroa), make up Nimbadi Kwatha. Triphala has antimicrobial and antioxidant qualities, Guduchi boosts host immunity and has antibacterial qualities, and Neem provides broad-spectrum antibacterial, antifungal, and antiviral activity. According to experimental studies, giloy extracts are effective against a variety of pathogens, such as bacteria, viruses, and fungi. It has a distinct antimicrobial activity that involves two mechanisms: it enhances phagocytosis, changes cytokine production, and activates macrophages. In light of antimicrobial resistance (AMR), T. cordifolia is a prospective option for the development of plant-based antimicrobials and integrated therapies. Its use is backed by both modern pharmacological research and ethnomedicinal history for infectious disorders and immune health. Nimbadi Kwatha and its derivatives, including Nimbadi Ubatan and soap formulations, have been shown to have antibacterial properties by modern pharmacological research, which also showed a notable inhibition of bacterial and fungal growth in vitro. These results demonstrate the value of Ayurveda in treating infectious diseases and lend credence to its traditional claims. To close the gap between traditional knowledge and contemporary evidence, a thorough analysis of Nimbadi Kwatha’s antibacterial impact is essential. It also identifies the plant’s potential as a natural remedy for drug-resistant infections.

Free radicals, such as singlet oxygen (¹_O2), superoxide (O₂ ^.–) and some active derivatives of oxygen, like H₂O₂ are although generated in plant cells during the course of normal metabolic processes, but their production is notably enhanced when the plants are exposed to any kind of stress environment. The reactive oxygen species damage important cellular components, including cell membrane by peroxidation of lipid and de-esterification of fatty acids.

Plants have evolved a wide range of mechanisms to contend with this problem. The antioxidant defence system of a plant comprises of a variety of antioxidant molecules and enzymes which take care of free radicals produced in the cells. These enzymes are popularly termed as the ‘Scavenging Enzymes’ or ‘Antioxidative Enzymes’.

Conversion of oxygen molecules into its reactive form leads to induction of a sort of stress in plants, to which we call as ‘Oxidative Stress’. It is the equilibrium between oxidative stress and antioxidant enzymes, which determines the fate of a plant.

Plants possess scavenging enzyme system to protect them from destructive oxidative reactions. These enzymes are not restricted to the intercellular compartment but are also found in the apoplast to a limited extent. Some of the enzymes are as follows:-

Objectives
• Assists in retaining and recalling key information.
• Enhances focus and concentration during learning activities.
• Serves as a personalized summary of complex content.
• Provides an invaluable resource for exam preparation and academic success.
Note-Taking
Note-taking is the process of systematically recording important information from lectures, readings, or discussions to enhance understanding, memory retention, and future reference. It is a fundamental academic skill that not only aids comprehension but also fosters active engagement with the material.
Methods of Note-Taking
To cater to diverse learning preferences, several note-taking methods have been developed. Understanding these techniques enables learners to adopt the most effective strategy for their needs.

Air is one of the primary things that make life on earth possible. The earth’s atmosphere or air is made up of variety of gases and other particles. The dynamic layer surrounding the earth’s surface containing various mixture of gases, moisture and solid particles (aerosols) is called atmosphere. The atmosphere is generally defined as the gaseous envelop surrounding the earth.

The formation of the earth was believed to be about five billion years ago. In the first 500 million years, a thick atmosphere emerged from the vapour and gases that were expelled from the interior of the earth. Hydrogen (H2 ), water vapour, methane and carbon dioxide were some of the gases believed to be initially formed in the atmosphere due to out gassing from the interior of the earth. About 3.5 billion years ago, the atmosphere consisted of carbon dioxide (CO2 ), Carbon monoxide (CO), water vapour (H2 O), nitrogen (N2 ) and hydrogen present in atmospheric layers like troposphere, stratosphere, mesosphere, thermosphere (Fig. 2.1). The condensation of water vapour into water led to the formation of oceans in which sedimentation occurred and the hydrosphere was created. In the initial and ancient environment, oxygen was not present. Anaerobic is technical word which literally means without air (where air is generally used to mean oxygen and aerobic indicates the presence of oxygen). Evidence of such an anaerobic reducing atmosphere was hidden in early rock formations such as iron and uranium in their reduced states.

Modern farming system was aimed to maximise crop production by use of high yielding crop varieties or hybrids and application of agro-chemicals like fertilisers and pesticides along with irrigation and better crop production technologies. But without consideration of its impact on the environment and economics of the farmers, the monoculture of rice and wheat with agro-chemicals caused land degradation, soil and water contamination, gene erosion and environmental pollution.

Introduction

There is a large market for organic products, growers worldwide are faced with a potentially dangerous situation. While the majority of organic farmers prioritize soil quality, encompassing the physical, chemical, and biological aspects of soils, they often employ several inversion tillage techniques (Ploughing, disking and cultivating) to prepare seedbeds, integrate cover crops, and control weeds. These actions may worsen the condition of the soil. (Bruulsema et al?, 2003).

Recent pandemic (COVID-19) impacted global economy significantly and increased economic disparity. Vaccines are significantly beneficial and cost effective compared to other public healthcare preventives. Vaccines reduce hospitalisation, treatment costs and associated morbidity and mortality. Although COVID-19 vaccination and natural viral infection protected against reinfection, it waned in part due to emerging novel variants. Waning immunity from vaccine and natural infection are documented, and it was more so in severe hospitalised COVID-19. Many countries developed their own vaccines successfully to counter as COVID-19 became global. Vaccines needed updates to effectively fight COVID-19 as the wild strain constantly mutated. Among the intrinsic, perinatal, extrinsic, environmental, behavioural and nutritional aspects, the host factors included antibiotics usage pattern, sleep habits, physical activities, smoking habit and alcohol intake. Similarly, the external factors influencing vaccine response included childhood vaccination, early-age infections, nutrient supplements soon after birth, and breastfeeding pattern. Vaccination time also affected the efficacy. Forenoon vaccination developed less breakthrough infection compared to afternoon or evening vaccination due to varying immunological responses like immune cell functions, recruitment and transport, owing to circadian rhythm. Although vaccination side-effects are there, almost all vaccines are reportedly safe, effective and prevented serious illness, hospitalisation and death. Vaccine usually takes two weeks to manifest, and it prevented 14·4–19.8 million pandemic fatalities globally in 185 nations in a single year during December 2020 and December 2021. It was necessary that the boosters alongside vaccines enhanced immunological effects and provided extended protection. Thus, vaccine and booster design and development, dosing, targeted immunisation, cost-efficacy and vaccine acceptance are challenges to address. Government, not-for-profit organisations, health agencies and researchers may systematically analyse, justify and validate vaccine R&D and vaccinations economics. This chapter comprehends biological, commercial and economic benefits and impacts of booster dose in vaccination drives, and the roadmap ahead.

Introduction

Canine atopic dermatitis (CAD) is a chronic inflammatory skin disease marked by itching (pruritus), redness (erythema), and recurrent infections. While traditionally considered an immune-mediated condition, recent studies highlight the significant role of skin barrier dysfunction in its development. A key aspect of CAD is the compromised skin barrier, which increases permeability to allergens, irritants, and microorganisms, thereby worsening the disease. The skin barrier is a complex, dynamic structure essential for protecting dogs from environmental challenges. The stratum corneum—the outermost layer of the epidermis—serves as a crucial defense against environmental insults, allergens, and pathogens. In dogs with atopic dermatitis, this barrier often becomes impaired, leading to increased transepidermal water loss (TEWL), greater allergen penetration, and secondary infections. This dysfunction both results from and contributes to the condition, creating a self-perpetuating cycle of barrier disruption, inflammation, and immune dysregulation.

For farmers, the weather is a constant presence that influences every aspect of their work. It is a complex and multifaceted factor that can bring prosperity or devastation, often with little warning. The relationship between farmers and the weather is deeply intertwined, with each influencing the other in a delicate dance of observation, adaptation, and resilience. Weather affects farming in numerous ways, from the obvious to the subtle. Temperature, precipitation, and sunlight are the primary drivers of crop growth and development. However, extreme weather events, such as droughts, floods, and storms, can have catastrophic consequences for farmers. The timing and duration of these events can be particularly critical, with even small changes in weather patterns having significant impacts on crop yields and quality (Fig. 3.1).
Some key ways in which weather affects farming include:
• Crop growth and development: Temperature, precipitation, and sunlight influence the growth rate, yield, and quality of crops.
• Soil health: Weather patterns impact soil moisture, erosion, and nutrient availability, affecting soil fertility and structure.
• Pest and disease management: Weather conditions can facilitate or hinder the spread of pests and diseases, influencing the need for pesticides and other control measures.
• Water management: Precipitation and irrigation patterns determine water availability, affecting crop growth and farm operations.
• Farm operations: Weather conditions influence the timing and feasibility of planting, harvesting, and other critical farm activities.

The Carbon Cycle

The element that serves as a corner stone for cell structure is carbon. Plant tissues and microbial cells contain approximately 40 to 50% of C on dry weight basis. Yet, the ultimate source is the CO₂ of the atmosphere. The CO₂ is converted into organic C by the action of photoautotrophic organisms (higher plants and green algae). It has been estimated that the vegetation on earth’s surface consume some 1.3 x 10¹⁴ kg of CO₂ per annum which is about V₂₀ of the total CO₂ supply of the atmosphere or ¹/₁₀₀₀ of that in the ocean. Soil carbon constitutes the largest terrestrial pool of carbon.

In this chapter, the study’s findings are presented in a structured manner, accompanied by a discussion based on the analysis. The study aimed to present its findings in alignment with its objectives. Towards the end of this chapter, connections between the findings are established, explanations are provided, and an effort is made to uncover the underlying causes. The results and their corresponding discussion are organized according to the specific objectives of the study.

Result: Table 6.1 presents the distribution of 16 independent variables (x1-x16 ) and 3 dependent variables (y1 y3 ) in terms of their Minimum, Maximum, Mean, Variance, Standard deviation, and Coefficient of variation.

According to the study the maximum value for the independent variable Age at survey (x1 ) is 46.00, and minimum is 25.00. The study’s overall distribution was determined to have a mean of 32.938 with a variance of 22.895 and standard deviation 4.785. The high level of consistency is indicated by the variable’s coefficient of variation, which is 14.527%.

According to the study the maximum value for the independent variable Marital status (x2 ) is 18.00 and minimum is 0.00. The study’s overall distribution was determined to have a mean of 3.838 with a variance of 15.783 and standard deviation 3.973. The low level of consistency is indicated by the variable’s coefficient of variation, which is 103.527%.

Descriptive Statistics of Independent Variable With Respect to Minimum, Maximum, Range, Mean, Standard Deviation of Values, Variance, and Coefficient of Variance:

Results: The variable age (x1 ) having the range between 20 to 62. So, the mean of the age (x1 ) variable is 38.64. Similarly, the other variables education (x2 ), family size (x3 ), family income (x4 ), risk factor (x5 ), management factor (x6 ), natural calamities (x7 ), employment status (x8 ), expenditure (x9 ), push factor (x10 ), pull factors (x11 ) have the mean 5.220, 4.720, 1.270, 0.505, 4.790, 3.875, 4.809, 5.655, 2.226, 5.613 respectively. Here, we see that distribution of variables education (x2 ) and push factor (x10 ) among the respondents are moderately consistent and residual distribution of variables among the respondents are highly consistent.

The problem of haphazard and chaotic development in Allahabad can be traced to the existence of Nazul Lease. The major development of the city under the colonial rule started around 1868, with the inception of the Civil Station, the status of the British inhabitants was further strengthened by the creation of Lease status, the land was basically leased out for a certain specified time period. There were four types of Leases

The chapter deals with the Results and discussion of the study, whose purpose is to provide sufficient information so as to arrive at a valid conclusion. Tables and Figures are commonly used in this chapter to support and supplement textual materials. Discussion helps to interpret the Results of the study from a proper perspective and to relate them with other relevant studies.

Table 6.1. Descriptive Statistics of Variable with respect to Minimum, Maximum, Mean, Standard Deviation of Values, Variance, and Coefficient of Variance:

The chapter deals with the empirical findings and analyses in order to offer ample interpretation for a reliable conclusion to be drawn. In order to enhance and supplement the textual materials in this chapter, tables and models are frequently employed. Discussion is helpful in putting the study’s findings into proper perspective and connecting them to related research.

Table 6.1: Descriptive Statistics of Variable with respect to Minimum, Maximum, Mean, Standard Deviation of Values, Variance, and Coefficient of Variance

This chapter deals with the research findings of the study together with a relevant discussion of the facts. Results of the study have been presented, and inferences are drawn from them about the specific objectives of the study set forth. Findings of the present investigation on Webometric Content Analysis of Websites of Agriculture and allied sectors in West Bengal and the inferences drawn from them about objectives are presented under the following headings:

6.1 The current web presence of institutions under agricultural and allied sectors in West Bengal . The number of websites under each sector and their URL domain.

6.2 Contents features of the websites , the form of web contents used, information domain and language used in websites.

6.3 Thematic areas intended audience (internal and external users), and the media presence of the websites .

6.1 Current Web Presence of Institutions Under Agricultural and Allied Sectors in West Bengal

An attempt was made to explore the web presence of the institutions related to agricultural and allied sectors viz-a-viz website domain and URL in West Bengal . The variables like the number of websites , their URL address, and domain use status under different institutions were presented in this section.