eChapters

Vegetables
Peas
1. Rust
Pathogen
Uromyces fabae (Pers.) de Bary
Symptoms 
The fungus produces characteristics rust pustules on the host. Pustules are mostly found on the leaf blade, though often they may be found on the petiole and stem of pea plants. The sori are small, roundish, open, and powdery as well as brown coloured. In severe infections, the leaf may wither, resulting in considerable damage to the crop. As the plants near maturity, the fungus produces the telial stage on the host.

INTRODUCTION

Genetic engineering (GE) and genetically modified organisms (GMOs) provide powerful tools for sustainable development in agriculture, healthcare and many other industries. GMOs are those which were genetically engineered in a laboratory by incorporating a small foreign DNA fragment carrying a gene of interest into the native DNA of the organism. The foreign gene is attached with the necessary regulatory elements to help its expression in the new genetic environment. Genetically modified (GM) crops currently account for some 16 percent of the world’s land planted with soybean, maize, cotton and canola. The global demand for food is increasing because of the growing world population and decreasing arable land. At the same time food and agricultural systems have to respond to several changes such as increasing international competition, globalization and rising consumer demands for improved food quality, safety, health enhancement and convenience. Modern biotechnology involving the use of rDNA technology/genetic engineering has emerged as a powerful tool with many potential application for improving the quantity and quality of food supply. Foods derived from genetically modified crops, commonly referred to as genetically modified food and food ingredients have already become available worldwide with aim of enhancing productivity, decreasing the use of certain agricultural chemicals, modifying the inherent properties of crops, improving the nutritional value or even increasing shelf life. Results of DNA modification may not be limited only to the particular characteristics of the replaced gene. It is therefore important to ensure that when these organisms are released into nature they do not harm the environment or human health [EFSA, 2006]. Such concerns have led to broader interests in the theme of risk assessment in the release of GMOs. A cautious approach is necessary to assess environmental risks which may occur due to introduction of recombinant organisms in the natural environment [Johnson et al., 2007].

Abstract

For thousands of years, plants have provided medicine to human and animals. People still depend on plants for food and shelter. The present surveys and investigation covers Jasrota Wildlife Sanctuary, Kathua District (J&K) situated in Southeastern parts of Asia (India). This communication mainly focused on ten high value plant species belonging to eight families of medicinal value being used to cure different types of ailment growing in Jasrota Wildlife Sanctuary and surrounding areas of Kathua district. These species are Aerva sanguinolenta (L.) Blume, Centella asiatica L. (Urb.) Fl., Cissampelos pareira L., Colebrookea oppositifolia Sm., Cryptolepis dubia M.R.Almeida, Holarrhena pubescens Wall. ex G.Don, Justicia adhatoda L., Tinospora cordifolia (Willd.) Miers ex Hook.f. & Thomson, Vitex negundo L. and Woodfordia fruticosa (L.) Kurz. It also deal with morphological enumeration, ecology and habitat, ethnobotanical uses and active chemical constituent present in studied plant species.

Water is the only substance that exists in the atmosphere in all the three phases, i.e., solid, liquid and gas. The moisture on the earth's surface is in a constant phase change. The moisture content of the atmosphere is about 0.035% of all fresh water. The atmosphere receives its supply of moisture from the earth's surface through evaporation from oceans, lakes, rivers, damp soil, etc. and through transpiration from vegetation. Water vapour is the gaseous state of water and is invisible. The amount of water vapour present in the atmosphere is called atmospheric moisture or humidity. It is a measure of the amount of water vapour dissolved in the air, not including any liquid water or ice falling through the air.

Water vapour is constantly being cycled between the atmosphere and the earth's surface. The input rate (the rate at which water vapour enters the atmosphere from the ground through evaporation) and output rate (the rate at which water moves from the atmosphere to ground through precipitation) are equal. The average length of time that individual molecules of water remain in the atmosphere is called the residence time. It can be found by dividing the mass of the substance in the atmosphere (in kilograms) by the rate (in kg per year) at which the substance enters to and exists in the atmosphere. The total volume of atmospheric water vapour at any instance over the globe is about 14000 km³, which is 0.001% of the hydrosphere.

Although water vapour is lighter than air, the combination of higher temperatures and the ocean source tends to restrict it to the lower atmosphere. The decrease of water vapour with elevation is quite important in many meteorological processes. Infact, most of the water vapour is contained within the lower 5 km of the atmosphere (> 90%) and more than half is actually contained within the lowest 1.5 to 2 km. Less than 5 - 6% of the water is above 5 km, and less than 1% is in the stratosphere.

India is the seventh largest country in the world with a total geographical area of 328.73 million ha and has second largest population after China. The gross cropped area is 198.36 million hectares of which 70% is under rainfed cultivation. Around 55 to 60 per cent of the total population depends on agriculture and allied activities.

One of the important features of India prevalence is varied agro-climatic conditions; which enables to strengthen the horticulture industry. Many numbers of horticultural crops namely fruits, vegetables, ornamental and flower crops, spices and condiments, plantation crops, aromatic and medicinal plants, etc. are grown in almost all the parts of country. Thus, horticulture sector has become one of the major drivers of growth in agriculture having major share in agriculture GDP.

Introduction

Financial inclusion has become a global agenda because it is now well recoganised that a nation can prosper only if it ensures inclusive growth. Financial access and use of formal financial system, the means of financial inclusion, have positive association with inclusive growth (Levine and Demirguc-Kunt, 2008). The financial systems which are more inclusive have provided broader access to appropriate financial services to ensure that the benefit can be availed by poor and disadvantaged sections of the society (Akter, 2016). Since, financial inclusion is the process of ensuring availability of f inancial services and well-timed and sufficient credit as required by vulnerable groups such as low income segment and weaker segment of the society at an affordable cost (Rangarajan Committee on financial inclusion, 2005). Thus, the study of financial inclusion on the basis of socio economic factors is the key to investigate individual characteristics associated with financial inclusion (Allen, Kunt, Klapper, Peria, 2012). Understanding financial usage on the basis of socio economic factors enables framing appropriate financial inclusion strategies to achieve financial inclusion in real sense. Many international agencies like International Monetary Fund, Asian Development Bank, World Bank release data on financial inclusion around the world. Global findex report is published by World Bank after the interval of every three years to present the picture of financial inclusion on various socio economic parameters. Around the world, 74% adults, 72% female, 70% income poorest population, 63% out of labour force population and 66% rural population report to have account at formal financial system (World Bank Global findex report, 2021).

Large Ruminants Neurological examination of farm animals is an essential part of the physical examination, especially when there’s a suspicion of neurological disease. The examination begins with observing the animal’s gait and how it interacts with its surroundings. The main goal is to determine whether the neurological issue is primary (originating in the nervous system) or secondary (caused by something else) and to pinpoint where the problem is in the nervous system ( central nervous system -CNS or the peripheral nervous system –PNS ). When examining an animal, it is best to start with procedures that cause the least distress. Painful tests or more invasive checks should be done at the end of the examination.

This chapter introduces the scientific principles underlying the structure, properties, processing, preservation, and utilization of wood. It examines the anatomical organization and chemical composition of wood and explains relationships between structure and important physical and mechanical properties. The chapter also discusses moisture interaction, dimensional behaviour, mechanical performance, durability, seasoning, preservation, and wood-processing technologies. Engineered wood products and modern approaches to wood utilization are considered as important components of forest-product development. Together, these topics provide an understanding of wood as an important renewable material and its efficient, durable, and sustainable utilization.

Abstract

Extreme weather conditions often cause considerable damage. Much of this damage can be mitigated if people are better prepared for impending disasters. Therefore, public authorities and private enterprises have been investing in Early Warning Systems (EWS). Environmental degradation and destruction of natural resources has been faced by humans and other organisms for hundreds of years. Some of these incidences have been caused by natural climatic and geologic processes and others by human activities. These natural disasters have been increasing over time due to factors such as urbanization, population growth, destruction of natural environment and climatic change. Biogenic and anthropogenic related environmental and natural resources degradation has direct economic and health impacts on affected regions. Land and water degradation as well as disasters such as floods and droughts have led to famine, hunger, disease, death and created many other problems. It is necessary, therefore, to keep focused on the ultimate goal of reducing disasters by all possible means. India must invest generously on infrastructure and resources for preparation of early warning systems and disaster preparedness.

There is an urgent need to take up productivity improvement programmes in the senile plantations, with fresh stock supported with appropriate and integrated combination of inputs, pruning and grafting as well as training techniques taking care of health, vigour and productiveness. This require proven technology implementation through individual farmers, farmers’ cooperatives, self-help groups, NGOs, growers’ associations and commodity organizations. However, technology depends upon the nature and requirement of a particular fruit crop. The rejuvenation technology for transformation of old senile orchards into young productive ones in sustained manner requires well-planned and concerted efforts. Though processes and procedures require scientific skill with precision in application/implementation as these important commercial crops have been associated with livelihood of many farmers/growers, i.e. why economic production is of utmost important for the growers as it holds true for all the region specific important commercial fruit crops in general.

The successful translation of rejuvenation technology in old senile orchards includes sequential operational steps. They should be followed in scientific manner for different category/group of fruit crops.

Precipitation is the deposition of atmospheric moisture on earth. All the water sources on the earth depend on precipitation only. Precipitation involves condensation, growth of hygroscopic nuclei, cooling of nuclei at different stages and their fall on to the earth's surface. If the cloud particles are too small and remain suspended in the sky, they may not fall on the earth. There may be several clouds but no precipitation. Under certain conditions, water particles formed tend to fall but do not reach the surface since they get evaporated on the way. Only when the cloud droplets or ice crystals grow to certain size and can no longer remain floating due to buoyancy of air, do they fall as precipitation.

FORMS OF PRECIPITATION

Precipitation form is the state that the moisture is in, i.e., liquid, freezing, or frozen (solid). Because atmospheric conditions vary greatly both geographically and seasonally, several different forms of precipitation are possible. All forms of precipitation are collectively termed hydrometeors. Hydrometeors have been classified into 50 specific types. Out of these precipitation forms, only rain (liquid form) and snow (solid form) make significant contribution to total precipitation. In many parts of the world, the term rainfall is used interchangeably with precipitation.

Sustainability does not denote a fixed state of things. It is a dynamic phenomenon: a phenomenon that tends to advance towards a higher state of being. The range of a journey of sustainability extends from nothing to everything, from a simple system to a more complex system, or from an unstable or less stable system to a stable or more stable system. Speaking in ecological terms, the transformation of unproductive desert land into a forest in ecological climax over time is how the phenomenon of sustainability works.

The term ‘sustainable development’ was first of all used in 1980 in the World Conservation Strategy (IUCN-UNEP-WWF 1980). However, this term was brought into the focus of the world for the first time in the United Nations World Commission on Environment and Development (WCED) Report, popularly known as the Brundtland Commission Report Our Common Future in 1987. Sustainable Development in the WCED Report has been defined as Development that meets the needs of the present without compromising the ability of the future generations to meet their own needs.

This chapter introduces the scientific, biological, chemical, and economic importance of medicinal and aromatic plants associated with forest and allied systems. It examines their classification and diversity, chemical constituents, harvesting practices, processing, value addition, and extraction techniques. The chapter highlights the potential of these plants as valuable biological resources and explores approaches for their productive utilization. Sustainable harvesting, appropriate processing, and value addition are important for improving their economic potential while supporting conservation and responsible management of plant resources.

Abstract

As we have entered in the post genomic era where we have successfully completed the full genome sequencing of many important crop species and now the future challenge is to ascertain the functions of all genes present in plant genome.

Large parts of the country perennially reel under recurring drought. Over 68% of India is vulnerable to drought. The ‘chronically drought-prone areas’ – around 33%, receive less than 750 mm of rainfall, while 35%, classified as ‘drought-prone’ receive rainfall of 750-1,125 mm. The drought-prone areas of the country are confined to peninsular and western India – primarily arid, semi-arid and sub-humid regions. Approximately 218.1 thousand square kilometers of land in India under sub-tropical semi-arid and arid conditions are spread over the states of Rajasthan, Gujarat, Haryana and Madhya Pradesh (Anonymous, 1974). Agriculture is predominantly rainfed and the region is drought-prone. Less than 23% of land is irrigated. Forest cover is <5% and waste and fallow areas occupy 42% of the land.

Abstract

The percentage of people with obesity and diabetes has increased globally both in developed and developing countries but highest burden is on the indigenous people who are also socially disadvantaged. The modern medical treatment of diabetes is based generally on oral hypoglycaemic agents and insulin. So, there has always been a search for new anti-diabetic agents which are of lower cost and can cure the disease without harming other body functions. Plants being readily available in the Indian-subcontinent have been an important source of drug in the traditional system of medicine in India since time immemorial. The utilization of plants for alternative treatment to combat diabetes using herbal remedies has also been substantiated by World Health Organization. In this communication, we tried to list some scientifically proven anti-diabetic plants commonly available in the Indian subcontinent which can be used in the treatment and management of diabetes.

Clouds are the most important form of suspended water droplets caused by condensation. The World Meteorological Organisation defined cloud as a visible aggregate of minute particles of water or ice or both, in the free air. This aggregate may include larger particles of water or ice and particles such as those present in fumes, smoke or dust. The typical size of these water droplets and ice crystals range from less than 1 µm to 50 µm. When surrounded by billions of other droplets or crystals, they become visible as clouds. In the atmosphere sufficient moisture is required to allow condensation to take place. Then, moisture needs a suitable surface upon which it can condense. In free air, condensation begins on hygroscopic nuclei such as aerosols. These are microscopic particles and include dust, smoke, salts and chemical compounds. Nuclei range in size from 0.001 µm radius to over 10 µm. On an average, oceanic air contains one million condensation nuclei per litre and land air holds some 5 or 6 million. On hygroscopic particles such as sea salts, condensation can begin before the air is saturated. Supersaturation in clouds rarely exceeds one per cent. On average, clouds contain only four per cent of the total water in the atmosphere at any one time. Almost all clouds exist in the troposphere, although the tops of some severe thunderstorms occasionally extend to the stratosphere. Clouds move along with the wind and remain stationary in calm winds. They grow vertically and horizontally, depending on the temperature of the cloud and its ambient temperature. They may dissipate or precipitate. Under favourable atmospheric conditions, they burst and fall as rain. Clouds complete the following functions.

Introduction

Fruits and vegetables are an important part of healthy human diet. Consumption of vegetables is widely promoted by Governmental health agencies since it provide consumers essential nutrients such as vitamins, minerals, dietary fiber and phytochemical compounds, at a relatively low calorie density. Furthermore, the consumption of vegetables has been strongly associated with reduced chronic and degenerative diseases such as cancer and heart related ailments. The United States Department of Agriculture recommends five to nine servings of fruits and vegetables daily (Berger et al 2010). In recent years, fresh-cut produce has become more popular due to their convenience, freshness, taste and assumed “Healthiness”.

Abstract

Agricultural produce, such as vegetables, flowers and some fruits capture higher market price if they can be produced ahead or later than the main crop season. The demand of such unseasonal products is particularly high in the fashionable markets of big cities. Good quality of the product is, however, an essential requirement to realise this price advantage. Modern technologies can pave the way to take the full advantage of high price realisation. Growing crops under protected covers is being popularised and the application of various approaches of greenhouse technology can further extend this advantage because it offers greater control over the production environment and timing of crops. There has been a consistent increase in area under greenhouse cultivation nationally and is turning out to be a useful technology for resource efficient agriculture. The types of greenhouse structures range from hi-tech climate controlled systems to very elementary trenches or solar greenhouses used in high altitude cold desert regions of the Himalayas. Greenhouse vegetable production on a commercial scale is a capital and labour intensive production system and requires proper planning for sustainable production. Higher yield, efficient resource use, earliness, off-season availability and superior quality is the hallmark of greenhouse grown vegetables. Greenhouse vegetable production can be done from very basic soil based planting to fully automated hydroponic or soilless systems. This production system requires specialised crops and cultivars which should meet the demand of high value markets.

Many horticultural and forestry plants don’t come true-to-type when propagated by seed owing to cross pollination and highly heterogeneous nature of fruit crops, in general. As a result, when such plants are grown, the individuals differ in morphological as well as fruit characteristics as compared to mother plant. Though, it was a common practice in old days to establish new orchards with seedling plants, but now with the development and standardization of different vegetative propagation techniques, such plantings are avoided. In modern system of crop production, instead of a single tree derived from seed, use of composite plants (consist of usually scion and rootstock, joined together by budding or grating) is in vogue. This could have been possible by growing interest of mankind in vegetative means of plant propagation.  In asexual propagation, vegetative parts of the plant are used for propagation.  It is practicable because all the living cells of a plant have a capacity to regenerate into a full plant under favourable environmental conditions.