eChapters

Introduction

Due to inherent composition (high moisture and nutrients) of meat, it is highly perishable in nature. Hence, preservation of meat is essential to maintain its fresh quality. This is accomplished by various preservative techniques based on the principles of temperature control, moisture control and direct microbial inhibition.

Temperature Control

1. Chilling/Refrigeration

In this method, meat is stored at refrigeration temperature of 2 to 5°C. Chilling of animal carcasses is also carried out during ageing process, cutting transit, retail display and even in consumer household before ultimate use. Relative humidity during chilling is kept about 90%. The fresh meat has shelf life of 5-7 days at refrigerated temperature

Preservation of raw milk is essential to maintain its quality during storage and transportation before processing. One of the primary methods for extending its storage life is refrigeration, where milk is cooled to 2°C to 4°C immediately after milking. This significantly slows down the microbial growth and enzymatic activity. Bulk milk coolers (BMCs) are vital in achieving rapid cooling, especially in collection centres or dairy farms, where they ensure that milk remains fresh during storage and transportation. BMCs are particularly essential for regions with inadequate cold chain infrastructure, as they help maintain milk quality until it reaches processing facilities.
In addition to refrigeration, thermisation is another method used to preserve raw milk. Thermisation, a mild heat treatment, is widely used to extend the shelf life of raw milk, particularly when it needs to be transported over long distances. This process involves heating the milk to 57–68°C for 15 seconds, effectively reducing the microbial load while preserving the milk’s natural characteristics. Thermisation is typically followed by refrigerated storage, where milk is cooled to temperatures between 2° and 4°C to inhibit further microbial growth. The combination of thermisation and refrigeration ensures that milk retains its freshness and safety until it reaches processing facilities, even in regions with extended supply chains.
Raw milk also benefits from its natural inhibitors, such as lactoperoxidase, lactoferrin, and immunoglobulins, which exhibit antimicrobial properties and slow down bacterial growth. The lactoperoxidase system, for instance, can be activated by adding small amounts of hydrogen peroxide and thiocyanate to enhance milk’s preservation in the absence of refrigeration. The use of chemicals like hydrogen peroxide (H2O2) for milk preservation is not permitted in India due to safety and quality concerns. However, the FAO recommends its application under strict regulatory conditions in some countries as part of the lactoperoxidase system, particularly in regions where refrigeration is unavailable.

Vegetables consist of a large group of plants consumed as food. These represent complex commodities those include roots, stems, leaves, petioles, bulbs, tubers, corms, rhizomes, flowers buds, immature flowers, seedlings, immature and mature fruits and immature, partially mature and mature seeds of plants (Walker, 1988). Vegetables form an important part of human diet, providing essential minerals, vitamins, fibers and very special phytochemicals and they add a variety to the human diet (Singh, 2007). The consumption of vegetables has increased significantly since the consumers have now become more health-conscious (Cruess, 1958; Brackett, 1987a). Vegetables are cultivated in open fields, greenhouses and soil free hydroponic systems. In terms of retail, vegetables can be sold in a fresh or minimally processed form to provide a ready to eat product.

Vegetables are derived from various parts of plants, and it is sometimes useful to associate different vegetables with the parts of plant they represent. The vegetables based on their parts used as food are given below in Table 20.1.

Fermentation

The decomposition of carbohydrates by microorganisms and enzymes is known as fermentation. During fermentation process of food organic acids and alcohol etc are produced which act as preservatives and also provide fine flavor and aroma that increase the value of raw materials. Most fermented foods contain a complex mixture of carbohydrates, proteins and fats etc. Fermentation occurs when microorganisms consume susceptible organic substances as a part of their own metabolic processes. Natural fermentation is probably oldest form of food preservation.

13.1. Introduction

The preservation by using common salt, spices and vinegar is a common method for preparation of pickles, sauce and chutneys. Salt is mostly used as preservative in pickles in combination with acid. Minimum concentration of salt to act as preservative is about 12%. It inhibits enzymatic browning/discoloration by acting as an anti-oxidant. It exerts its preservative action by:

• Causing high osmotic pressure and thus suppress the microbial cells.

• Dehydrating food by tying up the moisture thus making it unavailable for the growth of microorganisms.

• Salt in the food affects the solubility of oxygen and thus growth of aerobic microorganisms is inhibited

• Chlorine in sodium chloride being good oxidizing agent is toxic to microorganisms

• Salt increases the permeability of the cell wall and thus cause changes in the permeability. Only the haloduric microorganisms can tolerate these effects while others are unable to survive.

• Similarly addition of acid to the food lowers the pH of the food which inhibits the growth of spoilage causing microorganisms.

• Addition of spices and edible oil in these products besides improving flavour and taste also help in preservation.

Introduction
Preservation by using common salt, spices and vinegar is a common method for the preparation of pickles, sauce and chutneys. Salt is mostly used as a preservative in pickles in combination with acid. Sodium chloride is used in brines and curing solutions or is applied directly to the food. The quantity of salt necessary to inhibit growth or harm the cells varies with the type of microorganisms. However, the minimum concentration of salt to act as a preservative is about 12%. Salt (sodium chloride) exerts its preservative action
by performing the following functions:
? Causing high osmotic pressure resulting in plasmolysis of the microbial cells.
? Dehydrating food by tying up the moisture thus making it unavailabl for the growth of microorganisms.
? Salt lowers the water activity and thus has adverse effects on microorganisms.
? Affecting the solubility of oxygen in the food and thus inhibiting the growth of aerobic microorganisms.
? Salt ionizes to yield chlorine ions, which is harmful to microorganisms.
? Chlorine in sodium chloride is a good oxidizing agent & is, therefore, toxic to microorganisms.
 

Preservation of food (fruits and vegetables) in common salt sand vinegar is called pickling. It is one of the most ancient method of preservation of fruits and vegetables. Pickling is the result of fermentation by Lactic acid forming bacteria which are found in large number on the surface of fruits and vegetables. They can grow in acidic medium and in the presence of 8-10 percent salt solution. The growth of majority of undesirable bacteria is inhibited. Lactic acid most active at 30 °C temperature. This temperature should be maintained during the process of pickling.

Preparation of pickles

Pickles are prepared with salt, vinegar and oil or combination of these ingredients. Spices are also used for pickle preparation.

Preserve:- Amature fruits/vegetable or its pieces impregnated with heavy sugar syrup till it become tender and transparent is known as preserve. The fruits like aonla, bael, apple, pear, mango, cherry, karonda, pineapple, papaya are commonly used.

Candied fruit:-A fruits/vegetable impregnated with cane sugar syrup and subsequently drained free of syrup and dried is known as candy. The most suitable fruits are aonla, apple, pear, cherry, karonda, pineapple, papaya are commonly used. In candy the total sugar contains of the impregnated fruits is kept about 75% to prevent fermentation.

Preserves (Murabbas) are prepared from whole fruits and vegetables or their segments by addition of sugar followed by evaporation to a point where microbial spoilage cannot occur. The final soluble solids concentration is reached to about 70 per cent. The finished product can be stored with or without hermetic sealing and refrigeration.

4.1 Overview of Concept and Science

Preserving flowers and plant parts has been a form of artistic expression that was very popular in Victorian ages. Now, this process is moving from an art to a highly interdisciplinary science and has become a major economic activity on a global scale. Because, dry decorative products have been globally accepted as natural, eco-friendly, long lasting and inexpensive as compare to fresh flowers and plant parts, which are perishable and delicate in nature. These perishables cannot retain their fresh like appearance and beauty for several months and it becomes prodigious job to maintain these qualities. Even with preservatives, the vase life of fresh cut flowers has been prolonged to an extent of 40 per cent only. Hence, for those who want the beauty of nature around them in the form of flowers but on a more permanent basis dried flowers are a solution.

Domain of Dried Flowers

Anything from botanicals such as stems, twigs, branches, bark, leaves/ foliage, flowers, thorns/ spines, fruits, cones, seeds, roots; and minor forest products like lichens, fleshy fungi, mosses, selleginnela ferns etc. in a dried form come under the domain of dry flowers. Until a few years ago dried flowers were popular in the West with very few homes in India opting for them. But, today Indian homes have taken to dried flowers in their many forms and shapes like duck to water. There are different segments which are covered under dried flowers (Table 1).

Mental health prevention entails intervening to reduce mental health problems by addressing underlying factors before a specific issue arises in an individual, group or population. The primary objective is to decrease the occurrence of future mental health problems. Mental health promotion and prevention strategies seek to enhance an individual’s emotional regulation capabilities, promote healthier alternatives to risky behaviors, cultivate resilience in managing challenges and adversities and foster supportive social environments and networks. These initiatives lie at the heart of a public health approach to children and youth mental wellbeing, emphasizing the importance of optimizing positive mental health while also preventing and addressing mental health issues.
Adolescence represents a critical period for mental health vulnerabilities. The World Health Organization (WHO) reports that approximately half of all mental health conditions manifest by the age of 14, often remaining unidentified and untreated. Nonetheless, proactive preventive measures can yield significant benefits. The latest WHO report highlights the “numerous opportunities for health promotion and disease prevention during adolescence, which could have positive effects on young individuals in both the short and long term.” The WHO guidance advocates for the implementation of preventive psychosocial interventions among youth to mitigate or prevent the potential longterm consequences of mental health conditions.

Pressing Flowers

One of the most popular methods for drying flowers is to put them under pressure, to remove the moisture out while leaving the color of the flowers and structure intact. There are several ways to apply pressure to flowers. The easiest method is placing them in heavy books and allow for drying. Flower presses can also be used. Some guidelines for pressing flowers in the traditional way are explained below:

A press release, also known as a news release, is a brief, compelling document that provides essential information about an event, product, service, or organization. Its primary purpose is to inform journalists, media outlets, and the general public about noteworthy developments in a way that garners attention and encourages media coverage.
Press releases play a crucial role in public relations (PR) strategies, serving as a bridge between organizations and their stakeholders. They are used across various industries to announce product launches, organizational changes, events, awards, and crisis responses, among other key moments.
The Purpose of Press Releases
Press releases serve as a vital communication tool in modern public relations. They enable organizations to connect with their audience, media, and stakeholders effectively. Below is a detailed exploration of the key purposes they fulfill:
1. Informing the Public
The primary goal of a press release is to convey significant updates, announcements, or achievements to the public.
• Sharing News: Whether it’s launching a product, announcing an event, or achieving a milestone, a press release acts as a formal medium to share this news in a professional manner.
• Transparency: Press releases help organizations maintain transparency by keeping their audience informed about developments. This is especially important for businesses, government bodies, and non-profits that engage directly with the public.

Pressure cookers are pans made of Aluminum or stainless steel. They are available in different sizes. The pressure cooker was invented in the seventeenth century by the physicist Denis Papin, and works by expelling air from the vessel, and trapping the steam produced from the boiling liquid inside. This raises the internal pressures and permits higher cooking temperatures. This, together with high thermal heat transfer from the steam, cooks food far more quickly, often cooking in between half and a quarter the time for conventional boiling. After cooking, the steam pressure is lowered back to ambient atmospheric pressure, so that the vessel can be opened safely.

    In recent years, the global demand for renewable and sustainable energy sources has led to increased interest in biogas production from agricultural residues and lignocellulosic biomass. Among these, paddy straw an abundant agricultural by-product—has gained attention as a potential substrate for anaerobic digestion and biofuel generation.
However, the biochemical conversion of paddy straw into biogas is limited by its complex lignocellulosic structure, which makes it resistant to microbial degradation. Therefore, pretreatment of biomass is a critical step to enhance its digestibility and improve the overall efficiency of biogas production.
Objective
The primary objective of pretreatment is to break down the structural and compositional barriers within lignocellulosic biomass that hinder microbial degradation and enzymatic hydrolysis. Specifically, pretreatment aims to:
1. Disrupt lignin structure and reduce cellulose crystallinity.
2. Increase surface area and porosity of the biomass for microbial access.
3. Improve enzymatic hydrolysis efficiency for higher sugar and methane yields.
4. Minimize sugar loss and avoid the formation of inhibitory byproducts.
5. Enhance biogas yield and the rate of biodegradation.
6. Achieve these improvements in a cost-effective and scalable manner

Soil Erosion As a Process
 
Soil erosion is a three stage process, namely (1) detachment, (2) transport, and (3) deposition of soil. Different energy source agents determine different types of erosion. There are four principal sources of energy: physical, such as wind and water, gravity, chemical reactions and anthropogenic, such as tillage. Soil erosion begins with detachment, which is caused by break down of aggregates by raindrop impact, sheering or drag force of water and wind. Detached particles are transported by flowing water (over-land flow and inter-flow) and wind, and deposited when the velocity of water or wind decreases by the effect of slope or ground cover. Processes like dispersion, compaction and crusting, accelerate the natural rate of soil erosion. These processes decrease structural stability, reduce soil strength, exacerbate erodibility and accentuate susceptibility to transport by overland flow, interflow, wind or gravity. These processes are accentuated by soil disturbance (by tillage, vehicular traffic), lack of ground cover (bare fallow, residue removal or burning) and harsh climate (high rainfall intensity and wind velocity).

    1.    Technical support
    2.    Financial support

1. Technical support

A. Institutes for Professional skills in dairy based enterprises:

Several institutions offer training programmes in dairy based enterprises:

I. Society for Innovation & Entrepreneurship in Dairying (SINED)

Society for Innovation & Entrepreneurship in Dairying (SINED) is registered under society regulation act 1860, hosted by National Dairy Research Institute, Karnal for promotion of entrepreneurship in dairying. The major activity of the society is to administer a Technology Business Incubator which provides support for technology based entrepreneurship in Dairying.

Prevalent Farming Systems in India Contributing to Livelihood India has a diverse range of farming systems, shaped by agro-climatic zones, socio-economic conditions, and cultural practices. India, with its diverse agroclimatic zones and socio-economic conditions, supports a variety of farming systems that play a crucial role in providing food, income, and employment to a large segment of the rural population. These systems vary by region, resource availability, landholding size, and climatic conditions, and are vital in ensuring sustainable livelihoods for millions of small and marginal farmers.
Here are some prevalent examples:
• Rice-Wheat System: Predominant in the Indo-Gangetic Plains. It involves rotating rice in the wet season and wheat in the dry season. This system is crucial for food security but faces challenges related to water depletion and soil degradation.
• Rainfed Farming Systems: Found in arid and semi-arid regions. Farmers rely on rainfall for crop production. Common crops include millets, pulses, and oilseeds. Drought-resistant varieties and water conservation techniques are essential.
• Mixed Farming Systems: Integrate crop production with livestock rearing. This system is common across India and provides multiple income streams. Livestock provides manure for soil fertility and draught
power, while crops provide feed for animals.
• Horticultural Systems: Focus on the production of fruits, vegetables, and flowers. These systems are often found in regions with favorable climate and access to markets. They can generate high incomes but
require significant investment and management skills.
• Plantation Systems: Involve the cultivation of cash crops like tea, coffee, rubber, and spices. These systems are concentrated in specific regions with suitable agro-climatic conditions.

13.1. Introduction

Diseases of dairy cattle cause huge economic losses. The losses are associated with lower productive and reproductive performances as well as mortality of the valuable animals. The high producing animals are susceptible to various infectious and contagious diseases. The diseases may permanently affect the performance of the animal e.g., mastitis may permanently damage the quarter(s) of the udder. Thus the culling rate of the herd may increase which affects the profitability of the farm. The occurrence of diseases in cattle is preventable. So, steps are needed to prevent the occurrence of diseases as prevention is better than cure. A number of factors are associated with the occurrence of diseases in animals. Disease prevention and control involves measures designed to prevent or reduce as much as possible the incidence, prevalence and consequences of the disease. These measures can be applied to control the reservoir of infection, break route of transmission or reduce the numbers of susceptible. Various new and environment friendly methods have been developed by modification or refinement of the old methods of disease control and prevention.

Introductioin

Poultry diseases can be caused by bacteria, viruses, fungi, parasites, or a combination of these pathogens. Common poultry diseases include Newcastle disease, avian influenza, infectious bronchitis, infectious bursal disease, coccidiosis, and salmonellosis, among others (Grace et al., 2024). These diseases can affect various organs and systems in poultry, including the respiratory, gastrointestinal, and immune systems, leading to a wide range of clinical signs and symptoms (Dunislawska et al., 2024). Prevention and control of diseases in poultry is paramount for maintaining the health and welfare of poultry f locks and ensuring the sustainability of the poultry industry. Poultry diseases can have devastating effects on production, leading to decreased productivity, increased mortality rates, and significant economic losses. Therefore, implementing effective prevention and control measures is essential for poultry producers to mitigate the risks associated with diseases (George & George, 2023).

Infectious diseases are illnesses caused by pathogens such as viruses, bacteria, fungi and parasites. Infectious diseases usually spread in animals through contact, contaminated food or water and through bug bites. Some infectious diseases are minor while others are very serious. Infectious diseases in the production animals are of great economic concern owing to losses though morbidity, mortality, reduced production, increased food insecurity, public health concern, increased cost of veterinary care etc. Therefore, prevention and control of infectious diseases of animals is very important for food security and safety, public health, animal welfare, access to market and alleviation of rural poverty. Key Factors for Effective Pevention and Control of Infectious Diseases The key factors for effectiveness of prevention and control strategies of infectious animal diseases are, (i) effective surveillance (active i.e. planned; or passive i.e. event based), (ii) an early detection of infection (making an early diagnosis with laboratory support), (iii) transparency and rapid response mechanism; and(iv) good governance.

Prevention and control of infectious diseases require coordinated management of animals, environment, biosecurity and vaccination. This chapter discusses practical measures for reducing disease transmission within animal populations. Important strategies include isolation of sick animals, quarantine and testing of new animals, cleaning and disinfection, visitor control, wildlife and vector management, rodent control, deworming, record keeping and disease monitoring. Biosecurity begins at the farm entrance and includes fencing and appropriate sanitation procedures. Vaccination is presented as an important component of integrated disease control rather than a standalone measure. The chapter emphasizes practical prevention to reduce mortality, production losses and antimicrobial use.

The purpose of PCA 1960 is to protect animals from being subjected to unnecessary pain or suffering. This at consists of 6 chapters covering 41 sections. This has been amended in 1982. The sections under each chapter have been concised for easy understanding. This provides only baseline information about the act.

Preventive Homeopathy

Homeopathy is entirely a unique philosophy different from that of conventional modern medicine. It is considered as a tailor made system of therapy administering a medicine fitting well in the totality of physical and psychological symptoms seen in an ailing individual whether it is human or animal. Homeopathy does not restrict to restoring health of ailing subjects (treatment of clinical diseases) but also offers scope for preventing diseases as well. It can play significant role in preventing enzootic and epizootic infectious diseases through administration of nosodes.

Nosodes

Nosodes are important class of homeopathic drugs specifically prepared from secretions or fluids of the diseased subjects or their infectious agents in the similar manner as other homeopathic drugs are made (process of dilution and succession). The word “nosode “ is derived from the Greek “nosos” (disease) and “eidos” (like). Nosodes are potentized remedies prepared from diseased tissues , discharges (products of disease) or disease causing agents (bacteria or virus) in a specialized manner following standard protocol. Dr. Samuel Hahnemann first prepared remedies from diseased tissues (mainly the miasmatic nosodes) for the three miasms (Psora, Sycosis and Syphilis) corresponding as Psorinum, Medorrhinum, and Syphylinum. Of which first two have common use in veterinary homeopathy. The nosodes have undergone proving similar to other drugs, and their use in veterinary homeopathy is in the same manner as with any other remedy i.e. matching patient symptoms with those of the remedy.

Price determination under perfect competition - It can be called as a market structure characterized by a complete absence of competition or rivalry among the individual firms. The sellers and buyers cannot determine the price, only the Industry decides the price of the goods. It means the forces of supply and demand determine the price of the goods

Perfect competition is defined as a market situation where there are a large number of sellers of a homogeneous product. An individual firm supplies a very small portion of the total output and is not powerful enough to exert an influence on the market price. A single buyer, however large, is not in a position to influence the market price.

Demand under perfect competition

Demand refers to the quantity of a product that consumers are willing to purchase at a particular price, while other factors remain constant. A consumer demands more quantity at lower price and less quantity at higher price. Therefore, the demand varies at different prices. Market demand means the sum of the quantity demanded by individual buyers at different prices.

Abstract

This paper attempts to analyses the price discovery relationships of future and spot prices of ten agricultural commodities during the period of post sub-prime crisis i.e., from 2010-2015. As per the decisions derived by the study, we found that except Turmeric price discovery is confirmed for all the nine agricultural commodities. The results are quite encouraging showing the emerging character of the agricultural commodities in India. Although, it doesn’t assure the competitiveness of the Indian commodities market. The statistical diffusion of the findings is quite relevant in policy making, hedging and investing decisions. Now a day, these markets are becoming more efficient and mature in terms of information, also market regulators are working towards their development. The study suggests that Forward Market Commission (FMC) should be given more power to regulate and control the market, which will ensure the efficient market situations in these commodities market. It also suggests that in order to facilitate more transparency in commodities market, like stock market, electronically traded stock exchanges must be developed. All these suggestions of the study are targeted to strengthen the derivative market trading in agricultural commodities to achieve efficient price discovery mechanism.

The results pertaining to the present investigation, “Diagnostic Study of Farmers in context of Price spread analysis, marketing pattern and Potential assessment of agricultural diversification in Chenani Block of Udhampur district” have been presented in this chapter.

4.1 Cost and return analysis of cereals, vegetables and fruit crops

For financial analysis of different enterprises, it is necessary to workout costs of various inputs, which needs to be deducted from the value of inputs. The cost and return analysis of cereal crop and vegetables in Mantalai village of Chenani block is presented in Table 4.1. Per hectare Cost A which included all the variable costs excluding the family human labour were found to be highest (?55416.38) for the cultivation of garlic followed by tomato (?54260.75) whereas raddish incurred lowest of ?29361.33. The cost B which included the fixed costs in addition to cost A were ?39020.89 for maize, ?59074.66 for tomato, ?37280.11 for cucumber, ?33361.33 for raddish, ?41053.97 for beans and ?59416.38 for garlic. The cost C i.e. total item wise per acre operational costs which also included the imputed value of family labour were found to be highest (?149074.66/ha) in tomato and lowest of ?39361.33/ha in raddish. The cost C increases in case of tomato to such an extent only because of the addition of family labour. Cost C* was also calculated by adding 10 per cent of cost C as management cost to total cost.

Pricing

Pricing goods and services is a critical job to maximize the profit of business organizations. Price is the most important determinant of the profitability of the business. Setting the right price can influence the quantities of various products or services that consumers will buy, which in turn determines the total revenue and the profit of the business. Price is the only element in the marketing mix of a firm that generate revenue.

The price of a product or service is the number of monetary units a customer has to pay to receive one unit of product or service (Simon, 1989).

Price mechanism is an economic term that refers to the buyers and sellers who negotiate prices of goods or services depending on demand and supply. A price mechanism or market-based mechanism refers to a wide variety of ways to match up buyers and sellers through price rationing.An example of a price mechanism uses announced bid and ask prices. Generally speaking, when two parties wish to engage in a trade, the purchaser will announce a price he is willing to pay (the bid price) and seller will announce a price he is willing to accept (the ask price).

Basmati Rice

Basmati Rice is a simple grain, yet throughout history it has been on royal menus of various cultures as the main dish. From the pilav of Turkey, polou of Persia, pilafs of the Steppes, the isotos and paellas of the Mediterranean, to the pulau of India it has been served to great sultans, maharajahs, shahs and emperors. Spices, nuts, dried fruits, vegetables and herbs are a natural for Basmati rice. Basmati rice transforms rice dishes into extraordinary meals. Also known as the “Queen of Rice”, this highly aromatic grain that is long and elegantly thin, has originated from Vasumati which means earth recognized by its fragrance. The full exposition of the word is from Hindi. Bas originating from Prakrit Vas which has a sanskrit root- Vasay connoting aroma; and mati from mayup meaning ingrained from the origin. Common usage has changed Vas to Bas while joining bas and mayup the latter changed to mati.. Thus the word Basmati originated.

Cotton, the traditional and important commercial crop has been in cultivation in India for more than five thousand years. Though synthetic / man-made fibre has made inroads, cotton deserves the prime position not only in India but also in the world. The Northern hemisphere accounts for more than 90% of the total world production. Whereas countries like China, US and India together account for 50% of the production in the world. In India, cotton farming provides livelihood for over 4 million farm families. Various allied activities like ginning, spinning, weaving, textile processing, garment manufacturing, marketing etc., provide employment to several million people.

Among fresh vegetables, onion, tomato and mushroom are reported to be highly export competitive. India ranks first in the world accounting for around 21 per cent of the world area, planted to onion. Globally, the country occupies the second position, after China, in onion production with a production share of around 14 per cent. Productivity of onion is low at around 11.4 metric ton/ha, which is significantly lower than the world average of 17.3 metric ton/ha. Besides India and China, the other major onion-producing countries are Turkey, Pakistan, Iran, Japan, Brazil, United States of America and Spain. It is produced for both domestic consumption as well as exports. India produces all varieties of onion - pink, red, yellow and white, big or small.

Potato is a major food crop, grown in more than 100 countries in the world and it is one of the major commercial crops grown in India. India ranks third by contributing around 7.5% to the world’s production. During 2006-07, 27 million tonnes was produced in an area of about 1.5 million ha. However, potato consumption per capita in India (14.8 kg/head/year) is one of the lowest in the world and hardly one per cent of the potato is processed.

Pulses are important food crops due to their high protein and essential amino acid content. Pulses are used as food and animal feed. India is the world’s largest producer, importer and consumer of pulses. Many exporting countries are dependent on India for marketing their pulses. Even though India is the world’s largest producer and consumer of pulses still there is a gap of 2-3 million tonnes between the production and consumption of pulses in the country and the gap is met through imports.

The first use of rubber was by the Olmecs, who centuries later passed on the knowledge of natural latex from the Hevea tree in 1600 BC to the ancient Mayans. They boiled the harvested latex to make a ball for a Mesoamerican ballgame.

Prices of major spices such as chillies, jeera, turmeric and cardamom are being driven to the ground by higher production, poor export earnings and a lack of working capital with traders to hold the stocks. Last December, all these spices were at record highs. With the prices ruling high last year, the acreage of most of the spices has increased this year, indicating excess production. The chilli acreage has increased by 15% to 20% while the land under jeera crop is estimated to have gone up by over 26%. The turmeric production is heading for a historic high of 82 lakh bags (each bag of 70 kg) and cardamom is having a bumper harvest.

Sugar originated from the Arabic word “sharkara” and is derived from the sanskrit world “sharkara”. Sugar is an important part of the daily diet and  forming a class of edible substances which includes  sucrose, lactose, and fructose. It provides the human body with requisite carbohydrates and is basically extracted from sugar cane and sugar beet.  Found in fruits, honey, sorghum, sugar maple and in several other sources, it is the main ingredient of candy which is loved by children the world over. Yet, it has been  blamed for causing tooth decay and excess consumption of sugar has been associated with a host of ailments like diabetes, obesity, weight gain, depression, joint pain, fatigue and insulin resistance and even cancer.

Random workplace surveys in the UK have proven that the staff can get pretty steamed up over hot drinks. Nine years ago, London Underground staff, in fact, threatened to go on strike when kettles were introduced to replace tea urns. Their grouse: it will make them late for shifts. When the credit crunch dried up the free watering holes in many companies, a survey by uSwitchforbusiness.com in 2010 claimed that trouble was brewing. It warned: "Cutting out the free cuppas may add to the bottom line, but there may be a far greater price to be paid in staff morale." Tea or coffee - free or not - is the preferred poison at work.

Fats and oils are one of the five essential ingredients of human diet. The four others are protein, carbohydrates, minerals, and vitamins. In balanced diet, the requirement of oils and fats per person per day is around 35 gm. In India, the major source of oils and fats is of vegetable origin; butter from animal milk also serves as a fat, though. In the nine major oilseeds, which are groundnut, rapseed /mustered seed, soya been, seasam seeds, sun flower seed niger seed, castor seed and linseed, out of these   seven are essentially edible. Among these seven, by far the most important are groundnut,  rapeseed/mustard seed, and soya bean. These three edible oilseeds account for a little over 80% of-the-total production of nine oilseeds, which include even two non-edible oilseeds, namely castor seed and linseed. As a matter of fact, edible oilseeds as such contribute nearly 95% to the total production of all cultivated oilseeds together.

ABSTRACT

The chemical characteristics of the groundwater in and around the Valapadi taluk of Salem district have been studied to evaluate the suitability of water for domestic and irrigation uses. Twenty three groundwater samples representing the shallow and deep aquifer of the area were collected and analyzed for pH, TDS, Ca, Mg, Na, K, HCO3, CO3, SO4 and Cl. It is observed that the quality of the groundwater is suitable for domestic use with some exception. The observed high quantity of Cl, SO4 and Mg at some places require immediate attention and detailed study. The value of EC and SAR indicate good to medium q of water for irrigation.

Primary cells are often preferred to established cell lines as they better represent the cells in vivo in terms of activity and functions. On the other hand, there is significant difference between original culture and present culture and even between cultures of the same cells in different laboratories. The rate of growth increases and there is change in chromosome numbers of lines over the time. The differences in phenotypes can cause problems in comparison and interpretation of results. The advantage of cell lines are ease handling, grow continuously, large yield and readily available. Primary cell cultures compared to established cell line are more fastidious in their growth requirements because many cell lines are derived from tumour tissue and demonstrate reduced growth factor requirements.

Primary processing of fruits and vegetables refers to the first steps in transforming raw agricultural products into forms more suitable for consumption, storage or further processing. This step generally includes cleaning, sorting, grading, cutting, peeling and packaging of the products. The aim of primary processing is to preserve the nutritional quality, taste and appearance of the products by extending their shelf life and making them more suitable for consumers or ready for secondary processing. For example, fruits may be peeled, cut or peeled, and vegetables may be washed, chopped, or blanched. This step is essential in the agribusiness industry because it has a direct impact on the quality and safety of the final product, ensuring that it meets market requirements, food safety standards and consumer preferences. The efficiency and methods used in primary processing significantly affect overall profitability, product quality and market competitiveness.
Primary processing refers to the initial stages of preparing fruits and vegetables for consumption while preserving their nutritional value, freshness and flavour. This essential step involves various techniques for cleaning, sorting and packaging the produce, ensuring that it reaches consumers in the best possible condition.

OVERVIEW OF PRIMARY TILLAGE EQUIPMENT
Primary tillage is the first and one of the most important steps in soil preparation for agriculture. It involves the mechanical disturbance of the soil to break it up, loosen it, and turn it over, creating optimal conditions for crop growth. The aim of primary tillage is to ready the soil for sowing by forming a seedbed, enhancing soil structure, managing weeds, incorporating crop residues, and improving water absorption. Loosening the soil also promotes aeration, which is crucial for root growth and microbial activity. The most common tools that are used for primary tillage are the mouldboard plough and the disc plough, each suited for different soil types and field conditions. These tools are designed to break and loosen the soil, ensuring proper root development and preparation for subsequent stages of cultivation.
The mouldboard plough, one of the oldest and most widely used primary tillage tools, includes several components such as a frame, shares (blades), mouldboards, landsides, and handles. The shares cut into the soil, while the mouldboards flip the soil over, creating furrows and burying crop residues. It is best for deep tillage in lighter, well-drained soils and is generally used in areas with low weed pressure. The depth and width of the cut can be adjusted to suit the soil type and crop requirements.
In contrast, the disc plough uses rotating discs to cut into the soil. Unlike the mouldboard plough, which fully turns the soil, the disc plough slices and fragments it into smaller pieces. This makes it particularly effective in dense, compacted, or rocky soils. Disc ploughs are ideal for regions with heavy, sticky soils or where crop residues are plentiful. The discs cut the soil without fully turning it, which helps reduce soil erosion and preserve moisture levels. Disc ploughs come in single-way and double-way versions, with discs mounted at different angles to improve soil penetration. Both mouldboard and disc ploughs are crucial for primary tillage, but

Abstract

Real-time PCR, also known as qPCR, is a highly sensitive technique used to determine the real-time amplification of a target DNA sequence. However, the presence of secondary structures or spurious amplicons can distort the results. When using SYBR Green chemistry, the features of qPCR primers differ from those of standard endpoint PCR primers. As a result, designing primers for SYBR Green qPCR requires extra caution and attention. This chapter outlines the essential features and conditions for designing qPCR primers, including primer length, melting temperature, GC content, specificity, and avoiding primer-dimer formation.

Abstract

It is essential that care is taken in the design of primers for PCR. Several parameters including the length of the primer, percentage of GC content and the 3' sequence need to be optimized for successful  PCR. Some of these parameters can be easily manually optimized while others are best done with commercial computer programs. In any event, careful observance of the general rules of primer designing will help ensure successful experiments.

Keywords: Bioinformatic tools, primer designing

Abstract

PCR primer design is a crucial skill for molecular biologists, as it enables the study of gene expression, gene amplification, and molecular markers. Primer3 is an online tool widely used for designing optimal PCR primers, which are pairs of short oligonucleotides that initiate DNA synthesis in vitro using a thermocycler. This tool uses a range of parameters to generate high- quality primers, including target sequence length, melting temperature, GC content, specificity, and product size. Understanding and effectively utilizing these parameters is essential for achieving accurate and reliable PCR results. In this chapter, the practical aspect of primer designing using the online tool Primer3 has been discussed. The parameters and the purpose of their usage have been given in a tabulated manner.

Primrose family is represented by about 58 genera and 2,600 species which are cosmopolitan but chiefly distributed in northern hemisphere. Some of the
larger genera with their approximately reported species include Primula (500), Lysimachia (200), Dodecatheon (50), Dionysia (41), Anagallis (30), Cyclamen (15), Salomus and Soldanella (11).
Selected Indian Genera
Primula, Anagallis, Androsace, Cyclamen, Primula.
Economic Importance
The family is of no specific economic importance except that of some well known decorative plants it contains. Some species of Primula may cause contact dermatitis. Anagallis arvensis is used for curing snakebite, leprosy, gout and even hydrophobia. Cyclamen purpurascence contains glucoside cyclamen which is poisonous. Some of the commonly cultivated ornamental plants of Primulaceae are the species of Primula (primrose), Androsace (rock jasmine), Cyclamen (Fig. 46.1), Dodecatheon (shooting star), Douglasia, Lysimachia (Loosestrile) and Omphalogramma.