eChapters

Introduction

Whey is the serum or watery part of the milk that remains after separation of curd that result from the acid or proteolytic enzyme mediated co-agulation of milk. It is major by product of dairy industries manufacturing products like channa, paneer, cheese and chakka (Sharma and Bhatia, 1999).The current world production of whey is estimated at about 165 million tones, in that cheese whey accounts for nearly 95 % of total whey. In India near about one million tonne of whey is annually derived, in that major source of whey is from the production of channa, paneer and shrikhand production. This is mostly thrown away as a waste which creates environmental pollution, also in that way about 70, 000 tonnes of Nutritious solids are lost (Puranik, 1999).

Objectives

• Better understand the dihybrid cross.
• Calculation of dihybrid phenotypic, genotypic and testcross ratios.

Principle

A cross is made between two true-breeding parents differing in two pairs of genes, producing an F₁ generation. These plants are inter-crossed to produce an F₂ generation. Mendel second law i.e., Law of independent assortment can be explained by studying the inheritance of two characters at a time, simultaneously. When two phenotypically distinct parents differing with respect to two characters governed by two pair of genes are crossed together. Each pair of genes assorts independently into all possible combination forming four kinds of progeny, two of these are parental type and two are recombinant types.

Identification of key communicators
For effective introduction of innovations and transfer of technology among farmers, effective communication is the prime need. An extension worker passes his information more effectively if he communicates with farmers/livestock owners through local leaders and key communicators.
Leader:  Is a person who effectively influences a group to cooperate in setting and achieving the goal.
Leadership: Leadership is a process by which an individual influence, guide and direct the thought, feelings and impressions in desired way.
Key communicators: Key communicator is a person who has maximum information about his society and vicinity area on different aspects.

Artificial intelligence is founded on the idea that human intelligence may be described in such a way that a computer can simply imitate it and carry out tasks ranging from simple to sophisticated. Artificial intelligence is assisting several agricultural sectors in increasing output and efficiency. In every industry, AI technologies are assisting in overcoming traditional hurdles.

AI intervention in agriculture is assisting farmers in increasing their farming efficiency while reducing harmful environmental impacts. The agriculture business has embraced AI with open arms in order to improve overall results. The way food is produced is changing as a result of artificial intelligence. Incorporating AI technology into agriculture aids in the control and management of any unwelcome natural occurrence.

Concept of Review of Literatures

The Review of literature is a systematic, explicit, and reproducible method for identifying, evaluating, and synthesizing the existing body of completed and recorded work produced by researchers, scholars, and practitioners. The Review of literature is also a resource paper, which includes the current knowledge including substantive findings, as well as theoretical and methodological contributions to a particular topic. These are available mostly in academic and scholastic journals.

Review of literature provide the basics for research in nearly every academic f ield. The aim of review of literature is to highlight what has been done so far in the field of interest and how our findings are related to earlier research. The review of literature also indicates the following by providing referential inputs.

(i) Approaches

(ii) Methods

(iii) Variables used

(iv) Statistical procedure

(v) Expected results

(vi) Provides theoretical background to our study.

(vii) Helps justify how our findings are related to our body of knowledge in our field of research.

(viii) Establishes a link between what we propose to study and what has already been found. It helps us to refine our research methodology.

Spermatozoa, the male reproductive cells, play a crucial role in fertilization and subsequent embryonic development. However, toxic substances such as heavy metals(lead) can disrupt spermatozoa function through various mechanisms, including oxidative stress, DNA damage, and disruption of cellular homeostasis. The toxic effects can impair sperm motility, viability, and acrosomal integrity, ultimately leading to reduced fertility. Livestock are not immune to these toxic insults, which can compromise their reproductive efficiency and agricultural productivity. Lead (Pb) is a toxic pollutant and is extensively distributed in the environmental and biological systems. This topic envisages the detrimental effects of lead on spermatozoa functions, shedding light on the underlying mechanisms, signal transduction pathways, and sperm kinematic alterations.

Introduction

Restriction enzymes, recognizes specific base sequences in double-helical DNA and cleaves at specific places, both strands of a duplex containing the recognized sequences. To biochemists, these exquisitely precise scalpels are marvelous gifts of nature. They are indispensable for analyzing chromosome structure, sequencing very long DNA molecules, isolating genes, and creating new DNA molecules that can be cloned. Werner Arber and Hamilton Smith discovered restriction enzymes, and Daniel Nathans pioneered their use in the late 1960s.

These specialized instruments are used for operation of skeletal system. Common instruments are as follows :

    1.    Loman bone holding clamp : It is used for holding fractured bony ends with bone plates.
 
    2.    Bone plates : are used for rigid immobilization of fractured fragments. Bone plates are of difference shapes, sizes and with varying number of holes. These are of following types :
 
        a.    Dynamic compression plate.
        b.    Neutralization plate.
        c.    Shcrnab plate etc.
 
    3.    Bone screws : are either used to immobilize fractured fragments or to fix bone plates. They are of different sizes and classified in to cancellous and cortical types.

    1.    The heifer is bred (naturally or by insemination) before the age of two years.

    2.    The gestation period is nine months and one week.

    3.    After calving, the cow gives milk for 10 months.

    4.    1 – 2 months after calving the cow will again be bred.

    5.    The cow then continues to give milk for about 300 days. This period is known as lactation.

    6.    Milk should preferably be handled in a closed system, to minimise the risk of contamination. It must be cooled to 4 °C as soon as it is produced.

    7.    The content of protein, lactose and ash is somewhat higher in buffalo milk than in cow milk. Buffalo milk contains vitamin A, but lacks b-carotene, which is present in cow’s milk.

    8.    When milk and cream turn to butter, there is a phase inversion from an oil-in-water emulsion to a water-in-oil emulsion.

    9.    In milk, the whey proteins are in colloidal solution and the casein in colloidal suspension.

India has made a considerable progress during the last three decades in horticulture production in India producing 300.6 million tonnes of horticultural produce from 24.85 million hectares in 2016-17. The average productivity of different horticultural crops is quite low as compared to the best yields at national and world level, indicating the scope to enhance the yield in different horticultural crops by many fold along with its quality specially in vegetables. Unlike vegetables, flower cultivation is growing at a very fast speed and registered a marked growth along with employment generation through protected cultivation. According to NHB (National Horticulture Board), during the year 2014-15 the area under floriculture production in India was 248.51 thousand hectares with a production of 1,658 thousand tonnes loose flowers and 484 thousand tonnes cut flowers. However, India’s total export of floriculture was Rs. 548.74 crores/ 82.05 USD Millions in 2016-17. This is because of an appealing gap between potential yield and the actual yield of various vegetable crops. In many vegetable crops, the yields realized are even less than 50 % of their potential yield. Due to fluctuating market prices and poor storage infrastructure available for horticultural crops, farmers are not able to get their production cost. Though, there are some crops, fetches high prices during off-season. Several biotic and abiotic stresses are major factors, responsible for low productivity and poor quality in several horticultural crops under their open field cultivation during rainy and post rainy season more specifically, in vegetables. The increasing demand of off-season and high quality vegetables in various markets of the big cities has drawn the attention of the vegetable growers for diversification from traditional system.

ABSTRACT

Vitex trifolia L. (Verbenaceae) is known for its medicinal property. Micropropagation can provide the opportunity to obtain large number of homogeneous plants and there are no reports of micropropagation of this species. So, we attempted for in vitro propagation of this species and described here is an efficient and rapid propagation method. This report describes in vitro shoot induction and plant regeneration from mature nodal explants of Vitex trifolia L. on Murashige and Skoog (MS) medium fortified with benzylaminopurine (BAP), kinetin (KN), thidiazuron (TDZ), adenine (ADE), and 2- isopentenyladenine (2 - iP) (0.25-10.0 mM). Multiple shoots differentiated directly without callus mediation within 3 weeks when explants were cultured on medium supplemented with cytokinins. The maximum number of shoots (9 shoots per explant) was developed on a medium supplemented with 5.0 mM BAP. Shoot cultures was established repeatedly by subculturing the original nodal explant on the same medium. Rooting of shoots was achieved on half strength MS medium supplemented with 0.5 mM naphthaleneacetic acid (NAA). Rooted plantlets were transferred to pots containing autoclaved soil and vermiculite mixture (1:1) that showed 90 % survival when transferred to outdoor. Plants transferred to the field have established themselves in the soil and are growing well. The regenerated plants did not show any immediately detectable phenotypic variation. Natural stands of Vitex trifolia are fast disappearing in India because of indiscriminate collection and over exploitation and the outlined procedure here offers a potential system for mass multiplication and conservation of Vitex trifolia.

Introduction

Spine gourd/Teasel gourd (English), (Momordica dioica Roxb.) is popularly known as Kantola or Kakrol in India. It is a perennial, dioecious, cucurbitaceous climbing creeper that belongs to the cucurbitaceae family (Raj et al., 1993). The spine gourd is also called as janglee karela (Harish, 2008). The crop is cultivated for its fruits, which are used as vegetable (Sastri, 1962). Young twigs and leaves of this crop are also used as vegetable (Bandyopadhyay and Mukherjee, 2006). The fruit is rich in ascorbic acid and contain iodine (Rao, 2001). Karnataka and West Bengal are the two main states that cultivate spine gourd commercially. Indira Kankoda I (RMF 37) is a new commercial hybrid variety of spine gourd developed by Indira Gandhi Agricultural University. This hybrid variety is commercially cultivated in the states of Chhattisgarh, Uttar Pradesh, Orissa, Maharashtra and Jharkhand. Spine gourd can also be grown well up to an altitude of 1500 m in Assam and Garo hills of Meghalaya (Ram et al., 2002). This popular vegetable has high demand in market but still remain underutilized and underexploited mainly due to its vegetative mode of propagation and dioecious nature (Bharathi et al., 2010). Adopting improved genotypes and standardized agro- techniques can increased the yield potential of spine gourd (Tiwari and Tigga, 2015).

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.

1. The following in meters for High Density Planting (HDP) which enhances the productivity of cashew
   1. 4 x 4
   2. 8 x 8
   3. 3 x 2
   4. 2 x2
2. Which of the following month for seed sowing of cocoa
   1. May – June
   2. December – January
   3. July – August
   4. February – March
3. The following week for seed germination in tea
   1. 2 – 3
   2. 8 – 10
   3. 4 – 6
   4. 1 – 2

5.1. Introduction

The energy equivalent can be considered to be an alternate energy unit, precisely related to units such as the joule, calorie, or Btu. In energy talks, many units are employed. They are divided into two categories: (a) basic units and (b) source-based units.

Introduction

India’s change in the economic environment and market-oriented economic reforms can be traced back to the 1990s which led to the growth of the country. There was a clear evident change from the condition it was in the 1970s when it was far behind the other Asian countries. The economic reforms brought by LPG (Liberalisation, Privatisation and Globalisation) model have affected not only international trade but also led to an increase in the competitiveness of the industries. But what triggered these economic reforms? Before 1990, India was in a severe economic crisis condition due to repeated policy failures. India was experiencing a huge fiscal and balance of payment deficit, a high inflation rate and a fall in foreign exchange reserves. This led to the sickening of the public sector units whose prime role was to bring a reduction in inequality and poverty. The self-reliance condition in India was not of much help as there was insignificant trade with the rest of the world. The crisis mainly depicted the mismanagement of the resources. In light of this, this chapter discusses the impact of the economic reforms on agri-enterprises.

Post-mortem glycolysis (anaerobic glycolysis)
• Post-mortem glycolysis is the basic function of muscle
• Irreversible anaerobic glycolysis starts after the animal has died and oxygen supply to the muscles is cut
• The various biochemical steps that occur in living animals for the conversion of glycogen into lactic acid when the oxygen supply is insufficient, are basically similar in slaughtered animal also
• After slaughter, during anaerobic glycolysis in normal animals (not in the animals that are exhausted, excited or excessively exercised just prior to slaughter), the glycogen reserve of the muscle decreases appreciably resulting in the lactic acid production which will proceed to a pH level at which the enzymes involved in glycolysis become inactivated
• In classic mammalian muscles this pH will be near to 5.4–5.5 (called Ultimate pH)
• Muscle having almost 600 mg glycogen/100 g muscle at the time of slaughter will reach this pH
• A protein called glycogenin is responsible for starting the glycogenesis (glycogen synthesis) in muscle and it binds with eight glucose molecules to produce a glycosyl-protein (Fig. 12.1)
• Glycosyl-protein is used as primer by the enzyme proglycogen synthase and thus, proglycogen is formed
• This proglycogen is converted into bigger macromolecule by the macroglycogen synthase and its branching enzyme

Abstract

The experimental results indicated that the treatments, cultivars and root stocks had expressed significant influence on growth, fruiting, fruit quality and leaf nutrient status of apple. The highest trunk girth (21.22 cm), shoot extension growth (22.77 cm), tree height (223.60 cm) and tree spread (184.20 cm) were recorded under the 2/3 dose of NPK  fertigation during 2003 and 2004.  The maximum yield (12.82 kg/tree), productivity (14.24 MT/ha) and fruit set (64.84%) were recorded in fertigation treatment of 2/3 dose of NPK which was significantly higher than other treatments during 2004 and similar trend was observed in the year 2003.

Introduction

Agroforestry has vast potential not only to meet the demands of fuel, fodder, timber, medicine and other Non-wood Forest Products but also to enhance green cover, soil and water conservation and reduce pressure on forests. The objective of agroforestry is to take advantage of the complimentary relationships between trees, crops and livestock in such a way that the productivity, stability and sustainability of the total system are maintained. It has great potential in improving degraded and affected sites and has been recognized as a restoration agent, rehabilitation process, and bioremediation mechanism, in addition to increasing farm income.

Agroforestry is not a new practice for the farmers of Tamil Nadu.  It has been in practice in various forms e.g. growing Acacia leucophloea in the grazing lands with Cenchrus ciliaris in the Kangayam tract of Tamil Nadu exists from time immemorial to meet the mixed farming in that tract. In late 60’s farmers in coastal areas of Chengalpattu and Cuddalore districts started growing Casuarina to be sold as firewood.  This effort was entirely of the farmers without any support from the Government.

I. FILL UPS

1. _____ is the period during which a flower is fully open and functional, in terms of pollen maturation and dispersal.
2. Flowers with _____ anthesis generally have brightly coloured flowers to attract insects, such as butterflies.
3. Flowers with _____ anthesis generally have white or less colourful flowers.
4. _____ is the mechanism, in which the stamens and pistil of a flower mature at different times.
5. The best example for protandry is _____.
6. _____ is the mechanism in which the stigma become receptive before pollen release.
7. _____ is the process by which plant pollen is transferred from the male reproductive organs to the female reproductive organs to form seeds.
8. In Bengal gram, the method of pollination is _____.
9. Red gram is _____ pollinated crop.