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Tamil Nadu Irrigated Agriculture Modernisation and Water Bodies Restoration and Management project (TN IAMWARM) is a multidisciplinary project funded by World Bank. It is being implemented by WRO, PWD as nodal agency in 63 sub basins along with line departments and TNAU as coordinating agency since 2007. TNAU is concentrating on up scaling water saving technologies including Sustainable Sugarcane Initiative (SSI) under Precision farming in sugarcane. Krishi Vigyan Kendra, Virinjipuram is implementing TN IAMWARM project in Cheyyar & Kiliyar sub basin since 2007. Cheyyar  and  Killiyar Sub - Basin are the tributaries  of the Palar Basin that rises in KolarDistrict of  Karnataka enters through Vaniyambadi  and drains an area of about 13,470 Sq. K.M. of which 10,880 Sq. K.M. is in Tamil Nadu. The command area of this sub basin comes under the Cheyyar and Vandavasi Taluk in Thiruvannamalai and Uttermerur, Maduranthagam, and Seyyur Taluk in Kancheepuram Districts  which covers 458 tanks in 12 blocks with a registered ayakut area of 36746 ha. The major crops grown in the sub basin area are paddy, sugarcane, groundnut and pulses.

Vegetables constitute about 55 per cent of horticultural crop production in the country with a total production of 85 million tonnes which is estimated to cross 100 million tonnes in near future. Successful cultivation of vegetables is hampered due to the incidence of several insect pests. Cultivation of hybrids, improved varieties, intensive agronomic practices, off season cultivation and indiscriminate use of insecticides has changed the pest complex in these crops.

Krishi Vigyan Kendra is a Government of India funded Indian Council of Agricultural Research Project implemented at district level for enhancing the productivity and livelihood through scientific extension works. Realizing the importance of technology dissemination in the changing scenario of food and nutritional security, ICAR intervened in a big way. All the first line extension projects were merged and brought under single umbrella of KVK. The major emphasis was to enhance the production and productivity as well as to generate household income and employment of farming community. It was also envisaged that these extension works will be act as model for extension agencies and also catalyzed to improve the existing systems for better delivery mechanism.

The cropping pattern in India is changing fast, particularly in favour of export-oriented commercial crops. These crops pose threat to the environment. Grapes is one such crop which accelerates environmental degradation. Borkar (2007) reported that with the advancement of technologies, the cultivation practices of grapes had improved increasing the yield and quality of grapes. However, to control the tremendous losses occurred due to pests and diseases in grapes, thousands of hundreds of kilograms of pesticides were dumped into the environment causing pollution.

Animal husbandry contributes 30 percent of agricultural gross domestic products in India and hence remains an important livelihood activity to the growing population of India. Mixed and diversified farming provides significant profit to the farmers than either only with agricultural or livestock farming. One of the biggest challenges in animal production is to produce animal products for human consumption through sustainable technologies. In the southern districts of Tamilnadu, dairy farming, sheep and goat rearing and back yard poultry form the major livestock livelihood activities.

The digital revolution is radically shifting how people create, manage, share and publish information, as well as how they relate, collaborate, communicate and share resources. Information and Communication Technologies (ICTs), Social Media, Web 2.0 and mobile applications have also significantly changed the livelihoods of the local farmers especially in developing countries.

The transfer of technology keeps the wheels of agriculture development moving. The existing transfer of technology mechanisms and extension programs are either slow or ineffective in bridging the linkages between the research community and the farmers. Information Communication Technologies (ICT) in agriculture is an emerging field focusing on the enhancement of agricultural and rural development. The advancements in ICT can be utilized for providing accurate, timely, relevant information and services to the farmers, thereby facilitating an environment for more remunerative agriculture.

In India, self employment has been recognized as an essential force of development in rural areas. It has emerged as a strategy designed to improve the socio-economic life and mainly focuses on extending the benefits of development to the poorest in the rural areas improving their standard of living and self-realization. SHGs in India are integrating the low income segments with rest of the rural community by ensuring them a better contribution in a more equitable share in the benefit of developments. These Groups are not only speeding up economic growth, but also providing jobs and improving the quality of rural life towards self-reliance. Self-employment needs a very wide ranging and comprehensive set of performance, relevant to all aspects of rural economy and covering rural people including skilled, unskilled and landless labours and artisans of Rural India. The Rural Indians put their entrepreneurial skills in all the rural development performance  but their economic status has not improved to the expected level. They have much potential, despite they are ignorant of converting their skills into reality.

Information Technology can play an important role in disseminating agricultural information to the farmers by using various multimedia sources. Farmers are more desirous and anxious to get quick, accurate and authentic information in the changing scenario of agriculture at local and at global levels. Dissemination of the required and recent agricultural information to the farmers in scattered villages at the variegated geographical situation in India is very difficult task. Transfer of technology to farmers is not a one time exercise because new farm technology is being constantly evolved. A continuous flow of technologies in an appropriate manner is vital to provide quick benefit for the development of the farmers. There has been a technological explosion in the field of agriculture. This demands that the farmer has to know all aspects of technology prior to its adoption. Hence Interactive Multimedia Module (IMMM) has potential to reach the unreached.

The Indian agriculture is on the threshold of a second revolution. It is becoming increasingly clear that the next leap will come from the Information and Communication Technology (ICT). Even though ICT has developed very well, its penetration to the farming community seems to be very less. At the same time, it is difficult for the extension agent to personally attend the queries of every farmer individually. With the decreased number of extension workers, there is a need to use the latest technologies for delivering extension services.

Women hold up half the sky’ according to Chinese saying. This is true with the Indian scenario as well, since women make up half the country’s population. The rural women in India constitutes nearly 77.00 per cent of the total female population. About 79.00 per cent of rural women workers are involved in agriculture related pursuits as cultivators and labourers. Farm & home are integral parts in the rural society in India and the ‘house wifes’ in the farmstead often plays multiple roles as producer, entrepreneur, workers, consumers, and homemaker. Women are more sensitive than men to the extremes of poverty and its consequences.

There are 437 tribes in India and Andhra Pradesh is inhabited by 33 tribes. Of these, 13 tribal groups  inhabit in high altitude zone of Visakhapatnam. Livelihood security is the ability of a household to meet its basic needs like food, health and shelter, basic education and community participation. Livelihoods can be made up of a range of on-farm and off-farm activities which together provide a variety of procurement strategies for food and cash.

Cassava is one of the leading staple food crop which is consumed as food and rest is used in industries and as feed to animal. Cassava has the potential to increase farm income, reduce rural and urban poverty and help to close the food gap (Nweke et al., 2001). It is used in many sectors like food processing, textile industries, glucose production etc. Salem stands first in area and has about 650 sago and starch industries acting as a prime reason for the intensive area under the cassava cultivation in Salem also 60 per cent of the starch produced in India comes from Salem District alone. Nearly 200 products can be made from cassava which leads to implementation of several interventions in the district which helped in imparting knowledge on cassava value addition techniques and improve adoption. Present study was undertaken to analyse the perceived impact by focusing on the effect of interventions of CTCRI and TNAU among the women growers in enhancing group approaches and empowerment through entrepreneurship activities.

Climate change referred as, a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods (IPCC, 2001). In other words, it is any long term conspicuous deviation from usual prevailing climate bringing variations in normal temperature, rainfall, atmospheric circulation with abnormal expression in extreme climate such as floods, droughts, extreme temperature etc.

In conventional agriculture, spatial variability over the landscape is ignored and fertilizers, herbicides, insecticides, fungicides etc. are applied at a uniform rate throughout the crop field. Precision Farming emphasizes on the infield variability which is first recognized, located, quantified and recorded, then managed by applying farm inputs  in specific amounts at specific time and at specific locations.

Vedic literature indicates that the energy in the universe gets transmitted into the human body through star galaxies. The star galaxies of our universe are divided into 27 parts each signified by a particular star (nakshatra). Every human being is assigned to a particular star by virtue of his birth time.  Each star is associated with a tree. The tree associated with his star gives the universal energy to the human being. Thus astrology gives us a chance to identify the tree which is auspicious to us, being associated with our birth star. When one plants the tree associated with his birth star near his dwelling, it will bring good luck and prosperity to him.

Abstract

Cultivated cucurbitaceous plants viz., pumpkin, Cucurbita moschata Duch ex Poir.; karingada, Citrullus lanatus (Thunb.); ridge gourd, Luffa acutangula Roxb.; sponge gourd, Luffa cylindrica Roemer and cucumber, Cucumis sativus (L.) and wild cucurbitaceous plants viz., little gourd, Coccinia grandis (L.); kan kareli, Momordica charantia (L.); Gothamada, Cucumis callosus (Rott.) Cogr.; tutar vela, Luffa acutangula (L.); tumada, Citrullus colocynthis (L.); kankoda, Momordica dioica Roxb. and ankhfooti, Trichosanthes bracteata (Lam.) were recorded as hosts of fruit flies in Banaskantha district of north Gujarat. Melon fly, Bactrocera cucurbitae and Ethiopian fruit fly, Dacus ciliatus were the major fruit fly species infesting these cucurbitaceous plant. The relative abundance of both the species were almost the same in cultivated hosts whereas, D. ciliatus was more abundant in wild hosts.

Introduction

The libraries of 2020 become multi-media centres of information resources, leaving behind their dull and drab image of repositories of old dusty books materials like micro-films, audio and video cassettes. Various electronic products for use both off line and on line representing the special type of materials need special equipments of different makes for their effective use.

Introduction

The library and information centre is an important component of any educational institution. It is a hub of specific information where the end users can explore the vast resources of information. In the era of old age libraries users had to spend more time for searching a small piece of information and for that had to depend on library professionals. But now we are living in the age of information and communication technology, computers are being used for day-to-day work of library which saves the time of users and avoid the redundancy work of library staff.

Introduction

The past few years have been characterized by changes in every walk of life and libraries are no exceptions. Certainly there have been profound changes in the ways we approach and manage libraries and provide basic library services such as bibliographic control, document delivery, presentation, and physical facilities for reading.  The evolution of traditional interlibrary loan services into a full range of document delivery services, new avenues for document acquisions and delivery from traditional methods to “high tech” with the most efficient pathway defined by the user within desired cost and time parameters have set new standard for library resources and services management.

Introduction

The total area of education is continuously changing where imperative information is exploring constantly.  There is highest need of information and knowledge for best and efficient education and the library plays a vital role in it. The users demand various aspects of information and enhanced quality of information service. Therefore present day’s library has gone from traditional environment to e-environment. We can use e-journals, e-books; CD & DVD etc .Library consortia play a most important role of academic libraries.

ABSTRACT

Mandarin Orange (Citrus reticulata Blanco.), known as ‘Suntala’ to the local populace, is a major cash crop and was once a pride of Darjeeling hills. It is grown in approximately 930 ha with an annual production of 148.224 metric tones and annual turnover of Rs. 25 crores approximately. Since early 1970s, orange orchards in the Darjeeling hills started to be unproductive inflicting huge economic loss showing severe citrus decline. Gradually the malady assumed alarming proportions and threatening the cultivation of the crop. The major causes for the bottleneck of the citrus industry in Darjeeling hills  is  the heavy incidence of insect pests, diseases and nutritional deficiencies.

ABSTRACT

Future is the era of ICT (Information Communication Technology) which is equally applicable in the field of Agriculture. Farmers database will be an important part of ICT which is required for smooth functioning of various agricultural activities like Farmer’s Trainings, Demonstrations, Crop monitoring, Support to farmers, implementation of various government schemes etc.  This software records farmers Name, Phone number, Sex, Category (SC/ST/Gen),  Number of dependents, Annual agricultural income, whether fully or partially dependent, Land holding size,  Major crops, Village, Block, Sub-division, Land situation (Plains/ Low Hills/ Mid Hills/ High Hills), Soil Reaction, Soil type, (Highly Acidic/Moderately /acidic/Neutral/Alkaline/Highly Alkaline), NPK status, Irrigation facility and information regarding Cattle. From the above record various reports can be generated according to the needs of the scientific personnel. For example soil scientist will have record of soil pH & NPK status of different farmers across the district. Scientist can filter the database to get farmers of a particular soil type to conduct training;

ABSTRACT

As population explosion continues and the shortage of extension personnel becomes acute, the wisest proposition is to utilize the latest information and communication technology (ICT) to make information available to the common man. The ICT  tools with their recent advancements have become easily available in various forms such a mobile telephone, PDA, WLL phones, FM radio, community radio, television, wireless internet services, webcams, video conferencing facilities etc. Extension agencies need to harness the ICT tools usefully and improve the quality of extension services.

•    A corn plant requires a certain number of growing degree units (GDUs) to reach maturity, regardless of the number of calendar days it takes to accumulate.
•    The relationship of GDU accumulation and corn development, along with utilizing the estimated number of days to reach a certain growth stage, can help predict when important growth stages will occur.
•    Growth stages can be used to help growers make timely applications of herbicides and fungicides. The following information is on corn growth and development from emergence to R6 growth stage.
•    Corn growth stage development can vary according to corn maturity. An early maturing product may produce fewer leaves or develop through growth stages faster than a slower paced late maturing product. This is important to remember when staging corn in relation to accumulated GDUs.

Terminology of experiments
    
Evaluation trials are important in plant breeding where the selected lines are compared with standard varieties. In most cases, it will be necessary to make comparable yield trials under field conditions. In such case, the field becomes the experimental unit. In these cases, the field becomes the experimental unit. It requires the use of small plots and adequately replicated.

The first step in applying the correct rate of fertilizer is calculating crop nutrient requirements. A soil test is the only way to measure how much P₂ O₅ and K₂ O are available in soils, and soil tests are available through several private and public laboratories.

Fertilizer Calculation

To compute the equivalent amount of fertilizer necessary to supply the corresponding amounts of nutrients, the following formula is used:

Flowers attract both young and old alike. They are associated with mankind from the dawn of civilization. These have become an integral part of human life in the modern era.
 
The Indian floriculture industry has been shifting from traditional flowers to cut flowers and dry flowers for export purposes. The liberalized economy has given an impetus to the Indian entrepreneurs for establishing export oriented floriculture units under controlled climatic conditions. About 60,000 hectares, area is under floriculture at present. During nineties, increasing demands for flowers in world market was coupled with production technology available abroad for high quality flowers.

Various methods are employed to dry flowers and foliage. The method adopted for drying depends largely on the character of the plant, that is to say whether the plant is glabrous, succulent or not succulent, hardy or delicate in nature. The suitable method for drying any given plant has to be studied elaborately. However, the different methods of drying are described broadly in this and consequent chapters.

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:

Drying by Embedding

A desiccant is simply a substance with a high affinity for water which can be used as a drying agent. Embedding the flowers in a granular, desiccating material is probably the most commonly used method and many consider it the best all around method. Several materials are used as drying agents. All the agents used vary in cost and in the results they produce. It is important to use the correct procedure when covering the flowers so that their form is maintained. Most well known is silica gel, but also clean dry sand can be used. Usually an airtight container is used; the flower heads are placed in the drying mixture face up, and very carefully covered with the mixture. The container must be kept closed during the drying process. After 4-14 days, depending on the thickness of the flower, the flower will be dry.

Dried Grasses

Grasses are easy to collect to dry and use. When the seed-heads have formed, the grass is cut off just above the soil using a sharp knife. They are allowed to lie in a thin layer in the sun for a day or two, turning them over a few times. They should not be allowed to get too damp. After they are dried they are put into a plethora of uses. Bunches of dried grasses can make a wonderful addition to any home or office.

Artificial flowers are a great source of handmade decorations. Beautiful handmade artificial flowers are suitable for banquets, weddings or to decorate any room in the home. They are generally made of paper or cloth and in a variety of colors. They come in either a bouquet form or can be ordered as individual stems. There are different kinds of artificial flowers including silk flower, latex flower, flowers made from natural leaves and embroidery flower.

23.1 Dry Flower Packing

Careful packing is one of the most important aspects of any product. Dry flower packing is the simplest way to capture the essence of summer flowers till long. Dry flowers should be packed nicely to avoid any damage. They should be packed alone in appropriate sized carton loosely cushioned with paper.They should be packed in a manner to keep them away from direct sunlight leaving some room for air. Packing material should be stable and firm to hold the dry flowers well without any damage during storage or transportation. Dry flowers can be packed in a variety of ways: in poly bags, window box, cardboard box, or in a sachet.

Explant

The tissue obtained from plant to be cultured is known as Explant. It may include the parts of shoots, leaves, stems, roots, flowers and callus.

Maintenance of Aseptic Environment

All culture vessels, media and instruments used in handling tissues as well as the explants must be sterilized. The importance is to keep the air surface and floor free of dust. All operations are carried out in laminar air-flow, a sterile cabinet.In general, the methods of elimination of these sources of infection can be grouped under different categories of sterilization procedures: 

A. Somatic Embryogenesis
 
In plant tissue culture, the developmental pathway of various well organised, small embryoids resembling the zygotic embryos form the embryogenic potential somatic cell of callus tissue or cells of suspension cultures is known as somatic embryogenesis. The capability of somatic cell of a culture to produce embryoids is known as embryogenic potential.

Embryoid: Embryoid is a small, well organised structure comparable to the sexual embryo, which is produced in tissue culture of dividing embryogenic potential somatic cells.

Experiment - 1 
Aim: Mobilization of recombinant Ti plasmid (with gene of interest) from  
(E. coli) to an Agrobacterium tumefaciens strain. 

Principle: Due to ease of cloning and harvesting plasmids, E. coli is most popular for maintenance of plant transformation vectors. Consequently, the plant transformation vector with cloned gene of interest is mobilized to recipient Agrobacterium strain harbouring vir plasmid. Plasmid are closed, circular DNA molecules that are able for autonomous replication with a host cell. 

Electrophoresis is a method used to separate charged particles from one another based on differences in their migration speed. In the course of electrophoresis, two electrodes (typically made of an inert metal, e.g. platinum) are immersed in two separate buffer chambers. Gel electrophoresis is a technique used to separate molecules based on physical characteristics such as size, shape, or isoelectric point. A gel is composed of agarose or polyacrylamide. Agarose is used for separating DNA fragments in size range of 100bp to 20kb. Polyacrylamide is preferred for smaller DNA fragments. Separation is achieved by moving the negatively charged nucleic acid molecules through agarose matrix with an electric field. Rate of migration of DNA molecules is inversely proportional to their molecular weight. Smaller molecules move faster than larger ones. But conformation of the DNA molecule is also an important factor. Conformations of a DNA plasmid that has not been cut with a restriction enzyme will move with different speeds such as: supercoiled plasmid DNA will move fastest followed by linearised DNA, while open circular DNA will move at the slowest pace. To visualise DNA, gels are stained with ethidium bromide which intercalates in DNA and fluorescse under UV.

Jasmine (Jasminum spp) is one of the oldest fragrant flowers cultivated by man. They are the most common flowers in India gardens.

Importance and Uses

They are traditionally important flowers not only as fresh flowers but also as source of high grade perfume oil. Mention of jasmine is there in ancient Indian literature like Kamasutra (AD 300-400) and Mahabharatha (500 BC). The odour of jasmine flowers cannot be imitated by any known synthetic chemical or natural isolates, thus giving it a unique status in the perfume world.

Marigold is one of the easiest annual flowers to cultivate, having wide adaptability. Flowers are attractive, have good keeping quality with a wide spectrum of colour, shape and size. They produce marketable flowers in a short time and are used widely for religious and social functions as well as for garden display. 

Importance and Uses

 Marigolds are sold as loose flowers, as cut flowers and widely used for various decorations and garland making. They are also excellent landscape plants widely used for bedding purpose, in herbaceous borders and can also be grown in pots. French marigolds, being dwarf, are suitable for hanging baskets, rockeries, edging and window boxes. In fact, marigolds rank next only to jasmine in popularity in South India 

National Horticulture Board

Commercial floriculture includes production of cut flowers, foliage plants, bedding plants and growing and forcing bulbs and corms of flowering plants for whole and retail sales. The floriculture industry has become highly specialized. Floriculture industry uses many devices to ensure steady supply of flowers and foliage plants irrespective of the season and minimum loss to industry, because of perishable nature of flowers.

Newer technologies involve fermentation by specific strains of lactic acid bacteria which bring specific fermentation under controlled conditions to a specific fermented product with enhanced organoleptic, nutritional and therapeutic qualities. Today health is of primary concern. It is important to have nutritionally balanced food with good bacteria. For this, probiotic foods top the list. The functional food concept was initially developed in Japan in 1990‘s as there were many side effects of allopathic medicines. A regulatory system has been initiated by the ministry of health and welfare to approve certain foods to improve health. These are now recognized as Foods for specialized health use (FOSHU). According to American dietic association (ADA) these foods are potential healthful food or food ingredients that may provide health benefits beyond the traditional nutrients. Probiotics are beneficial microorganisms. Probiotic foods as yogurt and sauerkraut are very well known. Fermentation increases the nutrient content and taste with the shelf life.

Today it has been understood that yeasts have great potentials as novel probiotics (Nayak, 2011). They have been found to be safe for human consumption in traditional fermented foods (Jakobsen and Narvhus 1996). Yeasts have a great physiological importance inside the gastrointestinal (GI) tract (Czerucka et al., 2007; Gatesoupe, 2007). Jespersen (2003) has mentioned the role of consuming fermented foods and the health benefits attributed with it.Yeasts are known for prevention of table olive (Arroyo lopez et al., 2012). Bonatsau et al. (2015) have shown multi-functional property of yeast as starters.

The following graph is a visual representation of how plant growth and/or yield is affected by nutrient concentrations

    1.    Salt affected soils;
    2.    Classification of salt affected soils; 
    3.    Formation of salt affected soils; 

Fertilizers are applied to supplement nutrient requirement of the crop. It should not be looked as a substitute to organic sources. After determination of nutrient requirement of a crop fora given yield and contribution of nutrients from different sources, articularly, from the soil source, it is necessary to supplement the balance from the inorganic sources. These are determined by field experimentation supplemented by pot-culture, laboratory and green housestudies, if necessary. When a fertilizer is applied all of its nutrient (s) are not absorbed by the crop. The interactions between soil-crop-season and other factors are quite significant. Only a fraction of the nutrient(s) is utilized by the crop.

Methods of soil fertility evaluation          
    I.    Nutrient deficiency symptoms on plants  
    II.    Plant analysis
    III.    Biological tests   
    IV.    Soil testing
    V.    Spectral sensing for site specific evaluation

Soil fertility evaluation is conducted for providing an adequate supply of essential plant nutriens to ensure optimum plant productivity, while maximising economic benefits and minimising environmental degradation.
 
Mathematical modelling of nutrient application

The significance of an essential plant nutrient was contained in the Liebig’s law of minimum.

Methods of fertilizer application

Two major methods are used to apply fertilizers  
I) Application of fertilizers in solid form 
II) Application of fertilizers in liquid forms

Use of biofertilizers in agriculture and their advantage
 
Bio-fertilizers or bio-inoculants

These are productions containing living organisms such as nitrogen fixers or phosphorus solubilises which are useful for agricultural production. Biofertilizers play a significant role in improving soil fertility and plant growth. By fixing atmospheric nitrogen both in association with plants and without plants solubilize insoluble soil phosphates into soluble phosphates there by increasing the availability of phosphorus secrete growth promoting substances and supplies to the inoculated plants.