eChapters

Origin of weeds : Weeds originated together with crop plants. They have been there since the man started cultivating crops about 10,000 BC. Man during his stage of development, explored certain crop plant to suit his own taste and fancy and cultivated them as ‘crops’. The unexplored / unwanted / troublesome plants which are interfering with his activities are considered as weeds. About 30,000 plants species have been identified as definite weeds in the World. Which are infesting crop lands, water bodies, gardens, orchards, road sides, railway lines, irrigation channels etc.

Plants are differentiated into

a) Crops: Which meet the needs of human being.

b) Weeds: Which compete or interfere in human affairs.

Jethrotull is the first person to use the word weed.

Weeds are the plants growing where and when they are not desired. They compete with crops for soil moisture, nutrients, solar radiation and space, and thus reduce crop yields. Weeds also act as alternate hosts that harbour insect pests and diseases and other microorganisms. Some weeds release poisonous substances into the soil which may be harmful to crop plants, human and livestock. Weeds reduce the quality of marketable produce and render harvesting difficult, leading to increased expenditure on labours, equipment and chemicals for their removal.

Classification of weeds

A. Based on life cycle

Annuals-Complete their life cycle in a year or in a single growing season. Based on the season they may be summer annuals and winter annuals.
Summer annual e.g, Echinochloa crusgalli

Introduction

In a research laboratory, we frequently need weigh chemicals and prepare different solutions of varying strength, as per the requirements. Accuracy in weighing and preparation of solution, with respect to weight/volume and strength, determines the success of experiment. In turn, the accuracy depends on weighing of solid chemical and/or measuring the volume of liquid chemical/making up the volume. In this Chapter, weighing of chemicals using appropriate weighing balance, preparation of solutions of different strength, their dilution, and precautions while preparing will be discuss in brief.

Weighing of Chemical

The primary method to determine the amount of chemicals to be used is weighing the chemical by using a balance.

In general, there are two types of balances to weigh chemicals in a laboratory:

1. Standard laboratory balance

2. Analytical balance

Standard Laboratory Balance

Generally, a standard laboratory balance is used for weighing a chemical when an error of ±0.02 g is acceptable. It is also used for pre-weighing, where approximate mass needs to be determined. Precise mass of the chemical is then determined using an analytical balance. Following are the steps in using a weighing balance in a laboratory.

Introduction

Welding is a fabrication process in which two or more materials or metal pieces are joined or fused with the application of heat, pressure, or both allowing them to cool and this causes fusion. Besides the work piece, a filler material is also sometimes added to the joint to form a pool of molten material that cools to form a joint based on welding and that will be stronger than the parent metal.

Arc Welding and its Types

It is a process of joining two metals using an electric current generated by the power supply, which gives the required amount of heat to metal pieces through which the metals melt and when the metal cools, which results in the binding of the two metals. In the case of this type of welding, the power supply is given, which creates an electric arc between the electrode and the metal rod. Both A.C. or D.C. power supplies can be used in arc welding and both consumable and non-consumable rods can be used.

Introduction

Bread wheat (Triticum aestivum L.) is one of the most widely cultivated and consumed crops in the world. Wheat is perhaps best known for its different end-use baking properties as determined by grain texture, protein content and quality. Wheat is generally traded by and classified into “hard” and “soft” market classes on the basis of grain hardness or texture of the wheat kernel (caryopsis). Soft wheats have softer endosperm texture that fractures easily, therefore requiring less energy to mill, yields smaller particles, and has less starch damage after milling when compared to hard wheats. Hard and soft are used with slightly different connotations in different parts of the world. In Western Europe, hard is applied primarily to durum wheats and the soft applied to bread wheat. Elsewhere the term is applied to different cultivars within the species Triticum aestivum. In general, hard wheats are used for bread baking, while soft wheats are used for cookies and cake making. Hard wheat requires more force to crack the kernel, maintains a larger particle size, passes through sieves more easily and has more damaged starch MacRitchie (1980). Higher starch damage is required for good bread making quality Tipples et al. (1994) but is detrimental to the biscuit making quality.

Abstract

Wheat is unique among cereals because of its ability to form viscoelastic dough. Variety of products such as leavened and unleavened breads, pasta, cookies, and breakfast cereals are prepared using wheat. The viscoelastic property of dough is mainly due to the presence of gluten proteins viz., gliadins and glutenins. Variations among these proteins play a significant role in determining the quality of wheat. Although considerable studies have been carried out on quantity and quality of protein and their relation to bread quality, very little work has been reported on their relation with quality of Indian traditional products like chapati and tandoori roti. Results indicate that ratio between gliadins and glutenins are important in determining the chapati quality. It has been found that varieties having 5+10 HMW glutenin subunits with IBL/ IRS chromosomes are more suitable for the preparation of chapati and roti. This article is focused on the relation between protein and its subunit composition and the quality of chapatti and roti quality.

Introduction

Carbohydrates constitute nearly 80% of the total dry matter of wheat kernel. Starch is the predominant form, with cellulose, hemicellulose and pentosans present in lesser amount. Starch is present in discrete granules within the cells of the endosperm. Starch content is available in the range of 65% to 75% and generally related negatively to the protein content. Starch structure is a crucial determinant of many end-product uses of wheat. While the amylose /amylopectin ratio is a useful descriptor of starch structure, a more complete analysis of the population of the molecules which constitute a particular starch is considerably more revealing. The molecules range from the high degree of polymerization (10⁷ – 109 glucose units) and heavily branched amylopectin population, to the lower degree of polymerization (103 -106 glucose units), and infrequently branched amylopectin population. Starches with widely differing structures are suited to particular end uses. For example, starches with no amylose, the so called waxy starches are particularly suited to use as thickeners or gel forming agents because they form a clear stable gel with little retrogradation. In contrast, starch with high amylose content form hydrogen bonded insoluble aggregations which are suited to use in adhesives, plastics and as a source of dietary-fibre starch. The size and branching pattern of starch are also important determinants of the suitability of starches for particular end-uses due to the effects these parameters have on gelatinization temperature, starch swelling and viscosity.

Definition

‘Whipping agent’ are a wide variety of materials to describe their role in confectionery manufacture as a means of holding air introduced into a product, to produce a uniform dispersion of air cells within the confection leading to a lower specific weight and considerable modification to the texture.

Stable foams cannot be obtained by whipping high concentration sugar solutions without the presence of a ‘surface-active’ agent.

Many types of proteins have whipping properties and those used in the sweet industry are:

(a) Egg albumen, crystal powdered and spray dried;

(b) High Bloom gelatine and gelatine hydrolysates;

(c) Skimmed milk in spray dried form;

(d) Whey, or whey in a mixture with skimmed milk;

Policies provide the institutional structure, direction, financial support and operational framework required for effective agricultural extension. Without clear policies, extension programmes may suffer from inconsistent decisions, fragmented implementation and unclear responsibilities. This chapter introduces the meaning, characteristics, sources and different types of policies and explains their importance to extension organizations. It examines how policies guide decision-making, establish limits, allocate resources and connect organizational goals with field activities. The chapter also introduces policy advocacy, analytical approaches and the policy-development process. Together, these concepts enable extension professionals to understand policy environments, participate constructively in decision-making and improve the responsiveness, accountability and effectiveness of extension services.

1. INTRODUCTION

Wine is the alcoholic product obtained by fermentation of fruits like grape, plum, peach, pear, apple and apricot (see chapter 25). Different types of wine which can be made from various fruits are:

• Table wines
• Fortified wines
• Sparkling wines

In preparation of table, fortified and sparkling wine many steps are common. It is out of scope of this text to discuss these specialized wines. But the general steps involved to in wine making are described here.

Abstract

The food security scenario in South Asia has witnessed rapid progress over the last few decades, yet nutrition outcomes, especially those related to women and children, have failed to keep pace. This paper contends that the role of women in providing food and nutrition security at the household and individual level needs to be examined, if the paradox of persisting malnutrition amid macro level food sufficiency is to be resolved. Food security, in its broader connotation, results from the availability of adequate food, effective consumption, and desirable nutrition outcomes. As such, it is intricately linked with a woman’s multiple roles expressed in her productive, reproductive, and caring functions. However, even focused efforts aimed at resolving the problems faced by women in performing one or other of their roles, may fail to produce expected results, if the issues underlying each function and their inter-linkages are not fully understood. The paper thus attempts to review various aspects of the relationship between women and food security in South Asia, highlights the issues that require urgent focus and indicates emerging concerns in the region.

Women constitute 50% of our population. Their contribution to farming needs no emphasis as they are integral part of it. Women have developed farming in our country and contributed immensely for growth and maintenance of agriculture as a whole. But majority of them are not fully aware of sustainable agriculture in scientific terms although they practice it. Surveys and observations reveal that women are in favor of traditional agriculture and feel that traditional farming is more sustainable than the present one.

Abstract

Women empowerment means capacity of womenfolk to participate as equal partners in cultural, social, economic and political systems with much appreciated and gladly accepted by the society. Acceptance of unequal gender norms by women are still persisting in the society. Moreover, ignorance prevails in rural areas and subordination to men is considered as god-will by the womenfolk. Food, health and education are prioritized to boys and girls’ destiny is linked to surplus resource of the family if any, available. Gender inequality exists in every nation on the planet. Women’s disempowerment is all over the world, comprising countries of east and west so empowerment of women has become one of the most important concerns of 21st century’s world. More than one third of the world’s adults, most of them women, have no access to printed knowledge, to new skills or to technologies that would improve the quality of their lives and help them shape and adapt to social and economic change. There are 130 million children who are not enrolled in primary school and 70 per cent of them are girls. Women and girls around the world are more likely to live in poverty due to discriminatory and unjust economic policies, pervasive gender inequality, war and instability and climate change. Human society has to work for sexual and reproductive health and rights, freedom from violence, economic justice, and leadership as these are the critical building blocks for women’s rights. When a woman has these rights, she can be strong, safe, powerful, and heard. Cultural and religious factors are hurdles to women empowerment so the greatest need of the hour is to change the social attitude towards women. There is need to envision a world where all women, girls, and trans people have a voice and choice in the work they do. They are paid equal wages in safe and secure workplaces and they have access to justice and rights. Strengthening women’s leadership should be priority area because it is an integral part of social perception towards women status. The future of women’s human rights depends on a strong pipeline of diverse young women leaders, as well as on creating opportunities for leaders from different generations and movements to learn from each other. Long lists of international and national initiatives are available on the websites of various governments and United Nations but the tangible results are still awaited mainly because of poor/ half heartedly implementation.

Introduction

The status of women in India has been subject to many great changes over the past few millennia. From equal status with men in ancient times through the low points of the medieval period, to the promotion of equal rights by many reformers. The history of women in India has been eventful. In modern India, women have adored high offices in India including that of the President, Prime Minister, Speaker of Lok Sabha, leaders of opposition etc. The incumbent president of India is a woman but the same vast majority of the women suffer from the great discrimination and even the basic human rights are denied to them.

INTRODUCTION

In the history of human development, woman has been as important as man. In fact, the status, employment and work performed by women in society is the indicator of a nation’s overall progress. Without the participation of women in national activities, the social, economical or political progress of a country will stagnate. Empowerment is a multi-dimensional process, which should enable women to realize their full identity and power in all spheres of life. It consists of greater access to knowledge and resources, greater autonomy in decision making to enable them to have greater ability to plan their lives, or to have greater control over the circumstances that influence their lives and free from shocks imposed on them by customs, beliefs and practices. Generally development with justice is expected to generate the forces that lead to empowerment of various sections of women and to raise their status.

Abstract

84 per cent of the Indian rural women livelihood depends on agriculture. It is estimated that 52-75 per cent of the Indian women engaged in agriculture are illiterate. Prevalence of anaemia among pregnant women ranges between 50%-90%. From these facts it infers that ghost of food and nutritional security haunts the rural women health and prosperity. Female participation in the economic activities also determines the sex ratio because the work determines the worth in the society. It has been observed that in those families where women participate in economic activities, this problem is not severe as compared to those families which do not participate in economic activities. Diverse areas of entrepreneurship exists in rural India for women empowerment. This potential can be realized through policy and infrastructure support from the government and by strengthening proactive synergies among various farm and non-farm sectors activities. Although we are proud of the Indian women in the global arena yet we have peer into the atrocities against them in the name of female foeticide, gender inequality, sexual harassment, dowry system and many more evils with promotion of involvement in socio-economic enterprises, if rural transformation is to be achieved.

Woman is an incarnation of ‘Shakti’the Goddess of Power. If she is bestowed with education, world’s strength will double. Let the campaign of ‘Kanya Kelavni’ be spread in every home; let the lamp of educating daughters be lit up in every heart across the regions and religions of the world.

Abstract

Globalization defines a new process of economic integration which is fuelled by neoliberal ideals claiming that an unregulated market economy maximizes economic efficiency and growth. Concept of equability and women empowerment provides durable strength and sustainable development to the programs aimed at promotion of commerce and trade through globalization. The post 2015 Development Agenda have not done much to address the large inequalities and discrimination against women. Global initiatives designed to benefit the daily lives of women and girls not being implemented effectively. This is especially for decision making and financial systems. The right to women needs to be ensured in order: to participate in the elaboration and implementation of development planning at all levels, to have access to adequate health care facilities, including information, counselling and services in family planning, to benefit directly from social security programmes, to obtain all types of training and education, formal and informal. All forms of discrimination against all women and girls everywhere must be ended. Out of the seventeen sustainable development goals (SDGs), not even the single one will be achieved without including women and girls as equal partners. All countries hold the same responsibility to ensure the full implementation of the 2030 Agenda for Sustainable Development within their own borders, and to support other countries in achieving the SDGs which includes reaffirming and contributing to the fulfilment of gender equality. Women and girls have to be equal partners in sustainable development.

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.

Abstract

Gender equity is more pronounced in livestock sector where more than 70% participation is from women side as compared to 33% in agricultural farming. About 75 million women are engaged in livestock sector. In India, livestock production is largely in the hands of women. In fact animal husbandry is becoming feminized. At present about 22% of milk and 2% percent of meat is processed into value-added products for trade while in developed countries it is above 90% and 60%, respectively. Traditional dairy products not only have established market in India but also great export potential because of strong presence of Indian diaspora in many part of the world. Value addition to dairy foods would provide health benefits to the consumers and improve the scale of economy in the dairy industry. Nearly half of the milk produced in India (50-55%) is utilized for the manufacture of value-added milk products but only 22% of the total milk produced is processed by the organized dairy sector. Conversion of surplus milk into indigenous milk products in and around production areas is least expensive and more profitable. Most of the animal farming activities such as cleaning of barn, washing of animals and hygienic maintenance, fodder collection, feeding, watering, and health care, management, milking, collection of dung for fertilizer and fuel, care of sick, pregnant and lactating animals, milking, household-level processing and value addition (ghee, curd, khoa, lassi and desi butter-making) are undertaken by women. However adoption of value-added livestock products as an entrepreneurship is scarce activity because of lack of training and financial liberties.

Abstract

Women make up almost half of the agricultural labour force in developing countries (43 per cent according to UN Women data). Empowerment of women is central to achieving the objective of inclusive, equitable and sustainable development. Between the period 2007-08 and 2009-10, the share of person-days in casual employment in MANREGS to the total person-days in all economic activities has also increased. The increase was marginal for male workers but significant for female workers. This again confirms that female workers have been the largest beneficiaries of MANREGS projects. The share of female participation in these public works is more than the share of their male counterparts. The survey shows that women comprise only 13.76% of the total entrepreneurs, i.e., 8.05 million out of the 58.5 million entrepreneurs. Among the states, the largest share in number of establishments under women entrepreneurship is of Tamil Nadu (13.51%) followed by Kerala (11.35%), Andhra Pradesh (10.56%), West Bengal (10.33%) and Maharashtra (8.25%). Average employment per establishment for women owned establishments is 1.67. The main challenges that women face in business are educational and work background, balancing their time share between work and family, problems of raising start-up capital, difficulty in borrowing fund, thought-cut completions endangered existence of small companies, problems of availing raw- materials access to export market without intermediaries, as well as an overall psychological barrier on the part of banks, suppliers, and clients alike. Govt of India and different bodies such as NGOs, voluntary organizations, self-help groups, institutions and individual enterprises from rural and urban areas are active to help the women entrepreneurs in their ventures.