eChapters

Example: Isolation and Characterization of Protease Inhibitor Gene and Promoter from Black gram (Vigna mungo L.) and Genetic Transformation and Molecular Analysis of Transgenic Tobacco

Objectives

1. To know the botanical and other names of spices and condiments.
2. To identify the family, plant habit and plant part used of spices and condiments.

The term “diagnosis” is derived from Greek words dia (between) and gignoskein (to know). It literally means to recognizing a disease and knowing
difference between the two diseases or conditions. Therefore, diagnosis includes – determination of specific cause, abnormality of structure and
function produced by the causative agents and clinical manifestations associated with the abnormality.

In general, germination of onion seeds is poor, and, in the case of old seed stocks, this problem is severe. Seeds soon lost viability in the ordinary storage state. However, cold storage conditions significantly increase the viability of seeds.

Banana and plantain (Musa spp.) are one of the most important commercial food crops especially in tropical regions. Banana by virtue of its multiple uses is popularly known as ‘Kalpataru’. Apart from fresh consumption as desert fruit, some types are also used for culinary purposes. It has therapeutic value; ripe banana is easily digestible and has vitamins and minerals.

Important Points

• A farmer with limited funds may operate in a range of increasing returns to capital is however, not an irrational producer.
• A firm is a particular business firm.
• A higher rate of accumulation of capital relative to the rate of population growth adds to the real stock of capital of a nation.
• A profit maximizing farmer will maximize the output for given level of outlay.
• An isolation curve is negatively inclined.

Observation recording: For correct identification of any tropical tree species, it is necessary to observe the type of leaf, leaf arrangement, surface ornamentation of leaf and various types of margins. The type of leaf, margins and leaf arrangement can be seen without help of any lens whereas to observe the ornamentation a hand lens will be require.

Coriander, Coriandrum sativum L. is an erect annual herb belongs to the family Apiaceae. Coriander may also be referred to as Cilantro, Chinese parsley or Dhania. In India it is cultivated in Rajasthan, Gujarat, Madhya Pradesh, Tamil Nadu, West Bengal, Uttar Pradesh etc. The leaves of the plant are variable in shape, broadly lobed at the base of the plant. Leaves are slender and feathery higher on the flowering stems.

12.1 Introduction

A magneto hydrodynamic energy conversion system or MHD system converts heat energy directly into electricity. An MHD generator produces electricity via the interaction of a moving fluid with a magnetic field and ionized gas. MHD conversion does not involve any mechanical conversion intermediary. As a result, this process offers substantial fuel savings because the process of producing mechanical energy and then converting it to electrical energy is eliminated. It is possible to generate electricity in large quantities using MHD power plants while reducing the impact on the environment. During his Bakerian lecture in 1832 to the Royal Society, Michael Faraday presented the concept of MHD power generation for the very first time. 

Uncertainty is an inevitable character of any system where most of the contradictory factors are either unpredictable or unfathomable. The higher is the complexity, the lesser would be the resilience. Agricultural production system, as it is managed in Indian condition, is the most vulnerable one to a plethora of uncertainties. Mostly managed in an open air rainfed conditions, it has been exposed to weather and resource uncertainties, market volatility, poor access to technology and a fragile input delivery mechanism.

Objectives

1. To estimate and assess the general status of perceived uncertainty of farmers by scale and dimension

Water is indispensable for human, animal and plant life. It is a major component of all organisms some of which contain more than 90% of water. Water is a constituent of protoplasm. It maintains turgidity of cells which is essential for stomatal opening, expansion of cells and for different physiological processes. Water is also required for translocation of nutrients and dissipation of heat.

16.1 Irrigation

Irrigation is generally defined as the artificial application of water to soil for the purpose of supplying the moisture essential for plant growth.

However, a broader and more inclusive definition of the term irrigation is the application of water to the soil for any number of the following six purposes —

1. To add water to soil to supply the moisture essential for plant growth.
2. To provide crop insurance against short duration drought.
3. To cool the soil and atmosphere, thereby making more favourable environment for crop growth.
4. To wash out or dilute salts in the soil.

Introduction Onion is a cool season bulb vegetable of high economic importance. According to Vavilov, Central Asia is the primary centre of origin; maximum species were found in the Mediterranean region in the West to Central Asia in the East. In India, onion was introduced around 600BC and from here it was introduced to the rest of the world. The largest onion-producing states in India include Maharashtra, Madhya Pradesh, Karnataka, Rajasthan, Bihar, Gujarat, Andhra Pradesh, Haryana, West Bengal, and Uttar Pradesh, which together account for approximately 90% of the nation’s total onion output. The expected share of Maharashtra in 2019-2020 is about 42.53% in onion production with 11363.00 tonnes. Onion has highest export value among vegetables, the total value earned in the year 2019 was ? 2660.79 crores (NHB, 2020). Onion contains about 89% water, 4% sugar, 1% protein, 2% fat. It also contains vitamin C, vitamin B6, folic acid and many other nutrients in trace amounts. Onion bulbs and onion greens are used in various dishes all over the world in cooked, as well as raw form. Red and yellow onions are used in soups because of their sweet taste. White onions are traditionally used in classic Mexican cuisine and also for dehydration purpose. India, Mexico, U.S., Turkey, Pakistan, etc are the major exporters of onion while the major importers of onion are Malaysia, UAE, Canada, Japan, etc.

Histiocytoma is more common in younger dogs below two years of age. It is also observed in all age groups.

Gross examination

Grossly, histiocytoma appears as light pink, smooth to firm, raised round (Figure 77) masses. Alopecia and ulceration are also observed.

Background and Technology Intervention

Managed Aquifer Recharge (MAR) describes planned storage and treatment of water in aquifers which can provide cheapest form of new safe water supply for towns and small communities (British Geological Survey, 2006). It is a part of a groundwater manager’s tool which is useful for replenishing and re-pressurising depleted aquifers, controlling saline intrusion or land subsidence as well as improving water quality through filtration and chemical and biological processes. MAR can enhance volumes of groundwater abstracted through different package of measures and restore groundwater balance. It also plays a vital role in smoothing out supply and demand fluctuations, stabilizing over-exploited groundwater levels, reducing evaporation losses and runoff, maintaining environmental flows in streams and rivers, improving water quality and augmenting the reuse of waste and storm water. In recent times, MAR uptake has been very limited.

Introduction

As global temperatures rise and extreme weather events become more frequent, the agricultural sector faces escalating challenges. The need for climate-resilient agriculture has never been more urgent. This chapter embarks on a journey to unravel the intricacies of adapting farming practices to changing weather patterns. It explores the multifaceted nature of climate change impacts on agriculture, emphasizing the importance of sustainable and resilient solutions.

Understanding Climate Change And Agriculture

The chapter begins by elucidating the current state of climate change and its specific implications for agriculture. It highlights shifts in temperature, altered precipitation patterns, and the increasing frequency of extreme weather events, underscoring the urgency for proactive adaptation measures.

Introduction

Aquaculture uses a variety of chemicals for a number of functions, including sediment and water management, improving natural aquatic productivity, transporting living organisms, creating feed, manipulating and enhancing reproduction, promoting growth and health, processing, and adding value to the finished product (GESAMP, 1989). Aquatic systems are thought tobe suitable places to recycle and dispose of hazardous and sewage wastes, with any excess being drained into the ocean. To fulfil the demands of the ever-increasing population, the water resources are overused for potable supplies, irrigation, industry, and thermal generating plants, which drastically diminishes their assimilative capacity.

Concept of Evaluation

Evaluation is the structured interpretation and giving of meaning to predict or actual impacts of proposals or results. It looks at original objectives, and at what are either predicted or what was accomplished and how it was accomplished.

Context Based Meaning and Concept

The meaning of evaluation is the way of judging or calculating the quality, importance, amount, or value of something: Evaluation of this new treatment cannot take place until all the data has been collected.

In its earliest uses (documented in the 15th century), context meant “the weaving together of words in language.” This sense, now obsolete, developed logically from the word’s source in Latin, contexere “to weave or join together.

Sprayers

Sprayer is a machine used to apply liquid chemicals on plants to control pest and diseases. It can also be used to apply herbicides to control weeds and to spray micro nutrients to enhance plant growth. The main functions of a sprayer are

•             Breaking the chemical solution in to fine droplets of effective size.

 •            Distributing the droplets uniformly over the plants.

 •            Applying the chemicals with sufficient pressure for positive reaching the plants

 •            Regulating the amount of liquid applied on plants to avoid excessive application.

7.1 Introduction

Water is one of the most essential natural resources of the planet. Water is also the most critical resource for sustainable development in most of the developing countries. The quantities that are needed for drinking and sanitation purpose of humans are relatively small, and much larger quantities of water are required for many other purposes. It is essential not only for agriculture, industry and economic growth of a country, but also it is the most important component of the environment and ecosystem, with significant impact on overall wealth and nature conservation. Agricultural and industrial activities critically depend on a sufficient amount of fresh water that is withdrawn from rivers, lakes and groundwater aquifers. Currently, the rapid growth of world population along with the extension of irrigation dependent agriculture, development of industrial sector and climate change are stressing the quantity and quality of the natural water systems. Due to the increasing problems, human have begun to realize that they can no longer follow “use and discard” methodology either with water resources or any other natural resources. As a result, the need for water management has become evident. Climate change has already started to affect the hydrological cycle and the availability of freshwater for agriculture. So, proper water management practices play crucial roles in the food production and the management of ecosystems. Over the last century global irrigated area has increased more than sixfold from approximately 40 million hectares in 1900 to more than 260 million hectares in 2000. Today more than 40% of the world’s food comes from the irrigated cropland which is 18% of the total cultivated crop land. Irrigated area is increased by almost 1% every year and the demand for irrigation water will increase by 13.6% by 2025 (Jensen, 1993). On the other hand about 8-15% of fresh water supply will be diverted from agricultural sector to meet the increased demand of domestic and industrial use. On the other hand the efficiency of irrigation is very low, only 65% of the applied water is used by the crop (Fig. 1). So, to overcome shortage of irrigation water for agriculture, it is essential to increase the water use efficiency in the crop field and to use marginal water for irrigation.

Lab coat: A loose white coat with deep pockets that is worn in a laboratory or medical office.

Labelling: It means any written, printed or graphic matter that is present on the label, accompanies the food or is displayed near the food, including that for the purpose of promoting its sale or disposal. After packaging, labels are required on the finished products intended for distribution and sale. Labelling can reflect on the quality of the product. It must be clear and informative. Information includes Name of the Manufacturer, Date of Manufacture, Net Weight, Gross Weight, Best before etc. Proper storage is needed for maintenance of the quality. Storage must be done only at recommended temperature, relative humidity, light and air / oxygen and carbon dioxide conditions etc. to maintain the quality of the food product. Label may include tag, brand, and pictorial or descriptive matter, written, printed, embossed, graphic, perforated, stencilled or stamped impressions. It is attached to container, cover, lid, or crown of a food package (Plate 384).

Laboratory: A place equipped for experimental study in a science or for testing and analysis. Broadly, it is a place providing opportunity for experimentation, observation, or practice in a field of study.

Lacquer: It is a colloidal dispersion of a solution of cellulose derivative, resin and plasticizer in solvent and diluents, where in all these constituents dried in air by evaporation of solvents, thus yielding a transparent, hard and water proof film.