eChapters

Tuberculosis

Tuberculosis is a chronic bacterial disease of cattle, buffaloes, sheep, goat and pigs caused by Mycobacterium sp. and characterized by presence of tubercle nodules in lungs, spleen and lymph nodes (Fig.2.1).

Etiology

• Mycobacterium tuberculosis

• M. bovis

Pathogenesis

Disease spreads through contact with infected animals or their discharges or morbid tissues. The infected animals release the organisms through sputum at coughing and contact animals get infection through droplet inhalation.Besides sputum, faeces, urine, vaginal discharges, semen, milk, lymph and wound discharges may act source of infection. It is also transmitted through contaminated instruments, utensils and beddings. After entry through inhalation or ingestion, bacilli localizes at the point of entry and produce typical tubercle in associated lymph nodes. Mostly pharyngeal and mesenteric lymph nodes are affected. From lymph nodes, infection may extend across body cavities, blood vessels and lymph vessels. The inhaled organism enter in the bronchial tree after lodging in bronchi a tissue reaction takes place. Neutrophilic infiltration is there and when neutrophils are necrosed, macrophages come to destroy the organism but they fail then many macrophages becomes elongated to form epithelioid cells, the hall mark of granulomatous inflammation. Some macrophages are joint together to form giant cells to destroy the acid fast bacilli. As a consequence of this some bacilli are phagocytosed and are destroyed. A zone of lymphocytes, macrophages, epithelioid cells, giant cells and fibrous connective tissues are formed around the central necrosed area.

7.1 General

Science and technology have been advancing rapidly, but unfortunately, their impact has been largely negative. Pollution is not the only issue we face today, but also the depletion of fossil fuels, climate change, and excessive land degradation. The persistent presence of heavy metals in soil poses a significant threat to our planet. Many efforts have been made to remediate soils contaminated with toxic chemicals.

There are several issues that need urgent attention at the moment, and a solution is necessary to tackle them all at once. Biochar is a great option because of its numerous benefits, such as a large surface area, high porosity, high carbon sequestration rate, excess nutrients, and potential to produce syngas and bio oil. By using biochar, we can reduce the bioavailability of pollutants in soil, combat climate change by sequestering carbon, and reduce the use of fossil fuels by producing syngas and bio-oil. Additionally, biochar improves soil health, which can contribute to food security.

Trypanosomosis

Trypanosomosis is an infectious disease of animals caused by protozoan parasite and characterized by emaciation, enlargement of spleen and lymph nodes, petechiae on serous membranes, ulceration on tongue and gastric mucosa and gelatinous exudate in subcutaneous region.

Etiology

• Trypanosoma evansi

Pathogenesis

The disease is mainly transmitted through bite of flies like Tabanus, Stomoxys, Haematopota etc. The carrier animals remain as potential source of infection. The pathogenesis of disease is not completely known. After entering in mammalian host, trypanosomes multiply in blood stream by binary fission leading to parasitaenia. The parasites has variable surface glycoproteins which cause continuous exposure of immune system leading to hyperplasia of spleen and lymph nodes. In chronic cases, due to formation of antigen- antibody complexes glomerulonephritis and vasculitis is seen.

Introduction

Flax (Linum usitatissimum L.), also known as common flax or linseed, is a member of the genus Linum in the family Linaceae. Linseed is an annual oil crop that is grown either for its fibre (fibre flax) or for its oil. The area under annual cultivation is 3 million hectares, accounting for 1% of the total world production of plant oil. The five major flax-producing countries are Canada, China, India, the United States, and the European Union.Canada with 614,000 metric tonnes of flaxseed produced in the year 2013-2014, is the world’s largest producer of flax and accounts for nearly 80% of the global trade in flaxseed (Oomah 2001; Bhatty, 1995)

Flaxseed, of Mesopotamic origin, has been cultivated in Mediterranean region and India since 5000 BC, being used principally for the fabrication of cloths and papers (Soni, et al., 2016).

With the adoption of cotton as a fibre crop for cloth preparation, fibre flax production declined and the major use of flax was switched from stem fibre to seed oil. It is a food and fibre crop cultivated in cooler regions of the world. Textiles made from flax are known in the Western countries as linen, and traditionally used for bed sheets, underclothes, and table linen. Its oil is known as linseed oil. In addition to referring to the plant itself, the word “flax” may refer to the unspun fibres of the flax plant. The plant species is known only as a cultivated plant and appears to have been domesticated just once from the wild species Linum bienne, called pale flax. (Allaby et al.,2005). Fibre flax is currently grown in the cool-temperate regions of China, the Russian Federation and Western Europe while linseed cultivars are grown in Canada, India, China, the United States and Argentina (Green et al., 2008).

7.1 Introduction
The preceding chapters have detailed the myriad ways in which meteorological data is collected, from direct in situ observations to various ground-based and space-borne remote sensing platforms. We have also explored the crucial aspects of data formatting, storage, and retrieval, recognizing the immense volume and diversity of atmospheric information. However, the journey from raw measurement to actionable insight is not complete without a critical intermediate step: data quality control (QC) and preprocessing. No observational system, regardless of its sophistication, is entirely free from errors, biases, or inconsistencies. Sensors can drift, communication links can suffer interference, environmental factors can contaminate readings, and automated systems can malfunction. Consequently, raw meteorological data often contains spurious values, missing records, or systematic biases that, if left unaddressed, can severely compromise the accuracy of weather forecasts, the reliability of climate analyses, and the validity of scientific research.
This chapter will delve into the essential processes of quality control, which involves rigorously identifying, flagging, and, where appropriate, correcting or removing erroneous data points. We will explore various automated and manual techniques employed to ensure the integrity and reliability of meteorological observations. Furthermore, we will examine preprocessing steps, which prepare the quality-controlled data for its intended use, including tasks such as unit conversions, interpolation to common grids, and handling of missing values. By understanding the meticulous procedures involved in data
quality control and preprocessing, we gain a profound appreciation for how raw atmospheric signals are transformed into the trustworthy information that underpins all of modern meteorology.

7.1 Meaning of Sampling
    
Before we consider sampling theory, we first define the terms population and sample.
 
The word ‘population’ or ‘universe’ in statistics is used to refer to any collection of individuals or of their attributes or of results of operations which can be numerically specified. For example the assemblage of heights of all the individuals in the population is called a population of heights.  Similarly we may consider the population of weights, wages, yields of grain; prices of wheat, mileages of automobile tyres, etc. a population containing a finite number of individuals or members is called a finite population.  For instance the population f ages of the workers in a factory constitute a finite population of ages. A population with infinite number of members is known as infinite population.  For example the population of pressures of temperatures at various points in the atmosphere is an infinite population. 

We have seen the procedures of testing hypothesis about population parameters in chapter 11. Frequently our interest is to test whether a set of observed values are in agreement with those which would occur if some specified hypothesis were true. The X² statistic provides a measure of agreement between such observed and expected frequencies.

The X² distribution has a number of applications in testing of hypotheses. It is used to test, (1) the independence of attributes, (2) the  goodness of fit, (3) the homogeneity of variances, (4) the homogeneity of correlation coefficients, and (5) the linkage in genetic problems. For applying X² test procedure we have to use only the actual observed frequencies and not the percentages or ratios. Further, the samples should be independent and the observations within a sample should be non-overlapping. The expected frequency in each category should be more than 5. The number of observations should be large, say, more than 50.

10.1 Introduction

In previous lessons we have been dealing with problems connected with variation occurring in any one variable, say the income of a person, the height or weight of an individual, the wage of a worker in a factory, the sales of a shop, demand of a commodity etc.  The values of a single variable were obtained from every member of the population and the different characteristics were described by certain descriptive constants after grouping into frequency distribution.  In this lesson, we shall be dealing with problems wherein there are paired variables and every individual or member of the population exhibits two values, one for each of the variables under consideration.  Example of the two variables which are to be studies together are (i) the income and expenditure of a household, (ii) the price and demand or supply of a commodity, (iii) the height and weight of a student, and (iv) the grain yield and straw yield of paddy, (v) Height of father and height of son, etc.

Results and Discussion:

Concept Result is the outcome, consequences or conclusion of a problem, probe or experiment organized after a period of time. This conclusion can be one result, multiple results or no result as such. The length of time taken to find a result can vary from less than a second to many years. In this chapter the result of the Research has been elaborated and also discussed later.

The purpose of the discussion/revelation is to interpret and describe the significance of our findings in light of what was already known about the research problem being investigated, and to explain any new understanding or insights about the problem, after we have taken the findings into consideration. The discussion will always connect to the introduction by way of the research questions or hypothesis we posed and the literature we reviewed, but it does not simply repeat or rearrange the introduction and the discussion always explain how our study has moved towards the research problem.

This table presents the distribution of 19 independent variables(x1-x19) and 6 dependent variables (y1-y6) in terms of their Minimum, Maximum, Mean, Variance, Standard deviation, and Coefficient of variation.

Here, it is depicted that the average age (x1) of the respondents is 50.307. The C.V. value for the variable is 18.521. So, it indicates that the distribution of the variable is highly consistent.

From the table it is depicted that the average education (x2) of the respondents is 7.600. So, almost on an average the individual education is 8 for every respondent. The C.V. value for the variable is 41.553. So, it indicates that the distribution of the variable is fairly consistent.

Rainfed agriculture constitutes 80% of global agriculture and plays a critical role in achieving global food security. However, growing world population, water scarcity, and climate change threaten rainfed farming through increased vulnerability to 1 droughts and other extreme weather events. Out of the total population of 7.3 billion, about 1 billion are food insecure and 60% of these live in South Asia and Sub Saharan Africa.

Storage Systems

    1.    Low cost storage technology

        ·    In situ : Means delaying the harvest until the crop is required and employed 
    for the root crops.
        ·    Sand and Coir : Used for the Potatoes
        ·    Pits used for the Potatoes
        ·    Clamps used for the Potatoes
             Wind breaks used for the Onions – 6 months 1m height wooden stakes
        ·    Cellars : under ground / partly under ground. Ex: Apples, cabbage, 
    onions and potatoes during winter.
        ·    Barns : In Sudan onions are stored in palm leaf barns called “Rakubas”.
        ·    Evaporative Coolers
        ·    Zero energy cooling chambers
        ·    Night ventilation.

    2.    As a general rule, air circulation of storage room is designed to provide about 25m² / min / 3000 K cal of refrigeration predicated on a 5.5ºC

    3.    Frozen storage refers to storage at temperature where food is maintained in frozen conditions.

    4.    Good frozen storage generally means - 18ºC / below.

    5.    Below – 9.4ºC, there is no significant growth of microorganisms in food.

1. Introduction
Pharmaceutical pollution has emerged as a significant global concern, raising alarms about its potential impacts on ecosystems and human health. The journey of pharmaceutical compounds from their point of use to contamination of water bodies reveals a complex and interconnected web of anthropogenic activities. From manufacturing plants to individual households, these pollutants persistently infiltrate aquatic systems, creating a growing

Introduction

Today we are part of a highly complex and dynamic society. The complexity and dynamism are primarily due to the chain of changes induced by the scientific and industrial developments. The impetus provided by the information explosion coupled with scientific and technological developments to human life has triggered several unimaginable developments in the number, structure and functions of formal organizations. Realization of the supremacy of human mind over the tangible and exhaustible organizational resources like money, material and machine has led to the concept of ‘human capital’, which is now being considered as the most critical organizational resource to ensure organizational effectiveness and efficiency. Analogously huge investments are going in towards servicing and developing this critical resource of human capital in organizations. In this context, the concepts of human resource development (HRD) and training assume greater significance. In fact, training has been considered as a potential tool for HRD since ages. However, as a distinct profession, and also as a critical management tool, training is still in its early years. At the same time, there have been significant changes in the way training is conceived, understood and practiced.

Q. 1 The Lysimeter is used to determine
(A) Sun shine hours   (B) Wind velocity
(C) Flow velocity        (D) Evapotranspiration

Out of 329 m ha geographical area in the country, 187.8 m ha or 53% is affected by various forms of degradation process which include 148.9 m ha affected by water erosion, 13.5 m ha by wind erosion, 13.8 m ha by chemical deterioration and 11.6 m ha by physical deterioration. The annual loss of topsoil is nearly 16.0 t/ha/year resulted in to 8.4 m t/year total nutrient loss. 

Agricultural colleges and universities were first formed in the belief that farm production could be increased as a result of the systematic application of current technology and agricultural research findings. The mission of these early educational institutions was to scientifically study agriculture with the participation of the farming community; to carry the results to a broad range of farmers who could use them; and to train farmers, extension workers, agricultural teachers and researchers so that agricultural production could continue to be increased on a sustained basis. In many of the developing countries, agricultural education and training have failed to adapt and respond to the realities of rural societies. In response to the urgent need to review and adjust teaching and training in agriculture at all levels. The training is an important tool to overcome the problem faced by the rural people all over the world. The availability of the resource is the crucial determining factors to strengthen the training Programme for the needy people.

INTRODUCTION

Plant propagation involves three main aspects: knowledge of mechanical manipulations and technical skills which constitutes the art of propagation; knowledge of plant growth and structures which constitutes science of propagation and knowledge of different kinds of plants and their methods of propagation. The basic objective of plant propagation is to increase the number of desirable types and to preserve the essential characteristics of the plant. Generally, sexual propagation or the seed propagation is used to raise the seedling rootstocks on which to graft or bud the desirable types. The clonal rootstocks are multiplied through vegetative means- layering, cutting etc. Various sexual and asexual methods such as use of seeds, apomicts, specialised plant parts, cuttings, layers, grafts and buds are employed to multiply plants of different fruit crops. In this chapter, the techniques used for raising rootstocks and multiplying the desirable types of different fruits have been discussed.

6.1 INTRODUCTION

Water in soils is essential to plant growth, being the medium through which inorganic nutrients are translocated to the root surface and carried through the plant. Most of the water in soils at or near field saturation can be considered as equivalent to bulk water, and only bulk properties need be considered in discussing its movement through soil interstices and its retention in soil capillaries; this is the field with which soil physics deals. But, in the first molecular layer in contact with soil particles, and perhaps for several molecular layers beyond, the behaviour of water molecules is very different from that in the bulk. Strong adsorptive forces can reduce the volatility of these molecules and restrict their mobility. Such an adsorbed layer of water competes with other polar molecules for adsorption sites, and so has an important role in determining the release and retention of fertilizers and pesticides. Such strongly adsorbed layers confer wettability on soils, but hydrophobic surfaces can also be present and these lead to non-wettable soils with serious consequences in run off and inefficient use of precipitation. This region of distinctive molecular interactions between water and soil particles falls within the field of soil chemistry.

Agriculture is one of the oldest and most fundamental activities of human civilization, serving as the bedrock upon which societies and economies have been built. In its simplest definition, agriculture is the science and practice of cultivating the soil, growing crops, and raising livestock. However, its significance extends far beyond mere food production; it is integral to the economic, social, and environmental fabric of nations. This chapter provides a comprehensive overview of agriculture, beginning with its basic definition and expanding to cover its critical role in human civilization. It delves into the diverse agricultural practices observed in Pakistan, a country where agriculture is not only a tradition but also a cornerstone of the economy. The discussion covers how climate, geography, and government policies influence these practices and shape the challenges and opportunities within the sector. Moreover, this chapter explores the economic impact of agriculture on Pakistan, particularly in terms of employment, poverty alleviation, and rural development. It also addresses the role of agriculture in ensuring food security, the environmental implications of farming practices, and the need for sustainable methods to secure the future of this vital industry. Finally, the chapter touches on the technological advancements and innovations that are driving modern agricultural practices and the broader implications of these changes for the future of farming. In the heartlands of progress and sustenance, where the earth meets the sky, lies a discipline that stands as the foundation of civilizations throughout history – agriculture. More than just a vocation, agriculture is an intricate science that has shaped societies, provided nourishment, and propelled the evolution of humanity. It intertwines the art of nurturing the land with the precision of scientific inquiry, producing a symphony of growth and harvest that sustains life itself. At its core, agriculture is the embodiment of a delicate balance between nature’s offerings and human ingenuity. It’s the art of coaxing the earth’s potential, and the science of unraveling its secrets. From the rhythmic dance of seasons to the intricacies of soil composition, every facet of agriculture is woven into the tapestry of life on Earth. And as we stride into an era where global challenges like population growth, climate change, and resource scarcity loom, the importance of understanding the science behind farming has never been more crucial.

Agroclimatology plays a vital role in the cultivation and production of creeper vegetables in India. Creeper vegetables, such as cucumber, bitter gourd, and bottle gourd, are an essential part of Indian cuisine and are grown extensively throughout the country. With its diverse climate and geographical conditions, India offers a suitable environment for the growth of a wide range of creeper
vegetables.
In terms of area and production, creeper vegetables account for a significant share of the total vegetable production in India. According to the Ministry of Agriculture and Farmers Welfare, Government of India, the area under creeper vegetable cultivation has been increasing steadily over the years, with a corresponding rise in production. This trend is attributed to the growing
demand for these vegetables, both domestically and internationally.
Creeper vegetables are not only an important source of nutrition but also contribute significantly to the country’s economy. They are a vital source of income for many small and marginal farmers, who cultivate these crops on a large scale. Moreover, the export of creeper vegetables earns significant foreign exchange for the country.
The importance of creeper vegetables in India can be gauged from the fact that they are an integral part of various traditional and cultural festivals. For instance, bitter gourd is considered a auspicious vegetable in many Indian communities and is often prepared during special occasions.