Preface   India with diverse soil and climate comprising several agro-ecological regions provides ample opportunity to grow a variety of horticulture crops. Horticulture is an inseparable segment and important crop diversification option in context of Indian agriculture. In any country, there is strong correlation between agricultural growth and economic prosperity. It is estimated that all the horticulture crops put together cover nearly 24.2 million hectares area with an annual production of 277.3 million tonnes. Though these crops occupy hardly 13% of the cropped area, they contribute over 29% to the gross agricultural output in the country and 37% of export of the agricultural commodity. They play an important role in ensuring food security, generating income thus elevating the standard of living of Indian farmers. Due to increased dependence on processed and value added products and commercialization of horticulture at global level, focused attention and high priority should be accorded to the development of horticulture in the country. Horticulture industry can be sustained by fetching suitable solutions to the set-back faced by farming community. There is a grave need of utilizing innovative technologies for modernizing the farming system. Hi-tech horticulture paves a new way to innovations and their applications ensures to bring a quantum jump in horticulture productivity. This book entitled “Commercial Horticulture” would prove helpful in taking a leap to overcome the constraints imposed on horticultural development by providing knowledge of modern technologies like protected cultivation, hybrid seed production, micro irrigation, fertigation, organic farming, mechanization and processing, post harvest management, etc. which is intended to help in strengthening the horticulture industry. An introduction to these latest technologies is intended to accelerate commercialization of horticulture which would ultimately encourage the sustainability and multi-faceted growth of agriculture in India. We would like to express our heartfelt thanks to all the contributors who put in sincere efforts for this publication. We wish to extend our gratitude to Dr Sudha Patil, Asstt. Prof. (Floriculture); Roshni Agnihotri, Sumathi, Neelima, Sanket More and Sreedevi, Research Scholars, ACHF, NAU, Navsari for their help in the compilation of this book. As hoped by the editors, this book will prove to be an instructive source of information for researchers, academicians, students, farmers or anyone associated with horticulture. All suggestions, improvements and criticism will be highly acknowledged.

Introduction Horticulture is the science of cultivation, management, postharvest handling, value addition and marketing of fruits, vegetables, ornamental, aromatic and medicinal plants, spices and plantation crops. Looking to its important role in nutritional security, poverty alleviation and employment generation, it has rightly been emerged in form of horticulture industry and as one of the most significant sectors in the world. The production of fruits, vegetables and flowers has acquired much importance in recent times due to their increasing demand. Changing lifestyles of people across the globe, attempts to overcome the stressful lifestyle, inclination towards healthy and balanced eating habits have made people include fruits and vegetables in their daily diet. In the case of flowers, the demand for fresh flowers has steadily increased not only for decoration but also for many other purposes like essential oils, cosmetics, aroma therapy, dry flowers, pot-pourries, natural dyes, medicines, etc. Rising incomes and growing consumer interest in a variety of fresh fruits and vegetables year-round is stimulating international trade in horticulture.

Introduction Vegetables are the vital sources of minerals, vitamins and dietary fibres and play an important role in supplying nutrition to human health. Vegetables require comparatively lesser quantities of agro-inputs to grow. Vegetables are rich source of vitamins, minerals and plant fibres which provide food and nutritional security. These also generate high income and employment, particularly for small farmers. Vegetables being a rich and cheap source of vitamins and minerals, occupy an important place in the food basket of Indian consumers, a majority of whom are vegetarian. This persistent vegetarianism coupled with rising per capita income is fuelling a rapid growth in consumption of vegetables. Presently, India is producing more then 70 types of vegetables which are capable of meet out the economic and nutritional requirement of the country (Table 1). There has been a revolution in the production of vegetables in the country in the last four decades.

Introduction Beauty, purity, love and passion are some of the emotions symbolized by the flowers. The feelings of love, affection and joy are conveyed effectively with these non-speaking beauties of nature, for example a lotus conveys purity, rose love, pansy thoughts and narcissus egotism. Flowers have a definite role to play at almost all occasions of human affairs like birth, marriage, worship, adornments and death. Besides flowers, other ornamental plants also play an important role in environmental planning of urban and rural areas and from wasteland development to overcoming pollution. An important aspect of floriculture is that it is a good avenue to generate gainful employment for youth and women of peri-urban and rural areas.

Introduction India (8o-30o N and 68-97.5ºE) exhibits a wide range in topography and climate, which has a bearing on its vegetation and floristic composition. This subcontinent is one of the World’s 12 leading Biodiversity Centres, encompassing 16 different agro-climatic zones, 10 vegetation zones, 25 biotic provinces and about 426 habitats of specific species. It has been estimated that about 45,000 plant species (nearly 20% of the global species) occurs in the Indian Sub-continent. About 3,500 species of both higher and lower plant groups are of medicinal values. More than 80 per cent of medicinal and aromatic plants (MAPs) are collected from 17 million hectares of Indian forest land. However, many of these, due to over-exploitation have become rare (Rheum emodi, Aconitum deinorrhizum), threatened (Rauvolfia serpentina, Berberis artistata) or endangered ones (Sassurea lappa, Dioscorea deltoidea). Problems arising out of rapid genetic loss of medicinal plants forced the need for international co-operation and co-ordination to undertake programmes for conservation of medicinal plants to ensure that adequate quantities are available for future generations.

Introduction Vegetable crops are an important component of Indian Agriculture. They are known for their short cycle and high productivity per unit area providing a valuable source of income leading to improve livelihood. The prosperity and advancement of a nation largely depend on achieving nutritional security to its people. The vegetables play a vital role as major supplement to food and nutritional security of our people. They are important source of nutrients like b- carotene, vitamin B, C, E as well as folic acid, iron, magnesium, etc. and they also supply fair amounts of carbohydrate, protein, fiber, antioxidants and energy.

Introduction Citrus spp. grown in almost all the states of India. Citrus fruit, consisting of mandarin oranges (Citrus reticulata Blanco), sweet orange (Citrus sinensis Osbeck) and lime (Citrus aurantifolia Swingle) are grown commercially in tropical, sub-tropical, arid, irrigated and mountainous regions in varying soil and weather condition. The citrus tree on the whole do well in dry climate, with a rainfall between 75 and 125 cm but certain species such as pummel and certain mandarin oranges thrive in heavy rainfall areas of Konkan, Assam and Coorg. It is grown almost all kinds of soil, varying from heavy black soil to shallow open soils. A hard substratum or a sticky impervious layer is very injurious. Soils having a high water table should be avoided. Although the citrus industry in India has faced many challenges, there has been a consistent increase in area and production owing to the awareness for sustained production (Table 1).

Introduction Agriculture is highly dependent on environment, and it’s very difficult to get favourable climate and other conditions for optimum crop growth and development as per crop need. Open field conditions are having a high direct affect of the prevailing weather conditions on crop growth, and also on population dynamics of viruses, fungus, bacteria, insects, etc. With time crops has adopted themselves to specific seasons, but the fast changing climatic conditions happening across the globe has changed the climatic characteristics of a season. This has resulted in untimely rains, high temperature fluctuations and changes in other abiotic and biotic factors in geographically varied locations where it was not supposed to be earlier based on various geographical factors deciding the climatic conditions of that area. Therefore, there is need to develop suitable technologies to sustain these challenges. How to address these issues, can we manipulate the climatic conditions or can we provide protection to the crops against climatic fluctuations and various other related stresses.

Current Trends in Fruit Exports from India Fruit culture in the Indian subcontinent dates back to the Harappan civilization when datepalm, pomegranate and lemon were domesticated. Fruits such as aonla, bael, jackfruit, karonda, phalsa, mango, pomegranate, almond, walnut and pistachio are mentioned in Charaka Samhita (300 BC) and Sushruta Samhita (400 BC), the oldest known texts on ayurveda. Owing to diverse agro climatic conditions, India can produce a wide range of tropical, subtropical, arid and temperate fruits. In the past few decades, India had made rapid strides in fruit production and is currently the second largest producer of fruits in the world, next only to China. The annual production is estimated to be about 81 million tonnes for about 12.6% of the total world production. However, India’s share in the global export of fresh fruits is less than 5 per cent. The major fruits exported in terms of quantity are grape, mango, banana and pomegranate. In value terms, grapes and mango earn the maximum foreign exchange for India.

Introduction In horticulture crops, plant materials has been  propagated through vegetative propagation methods for its superiority in growth as well as yield for centuries. Among vegetative propagation methods, micropropagation is most advance technique which made a significance in the horticultural crops to increase quality and yield. It can produce many plants from a single individual.

Introduction Green house is a structure in which external climatic factors can be controlled for cultivation and protection of crops. It has mainly two parts. (a)  a frame or the basic structure and (b) the cladding or covering material (U.V. film) Frame can be made of G.I. pipes, bamboos, woods or iron rods while the cover can be of glass or plastic films. In India the technology is primarily used. Greenhouse technology is more suited to vegetables crops (such as tomato, cauliflower, capsicum, cucumber, leafy vegetables etc.), and flowers (like rose, gerbera, carnation, etc).  This technology is mainly suitable for commercial farming, as it requires investment in setting up the entire framework.  Based on cooling systems of the greenhouse, it can be classified as naturally ventilated and fan-pad type greenhouse.

Introduction The horticulture sector has been a driving force in stimulating a healthy growth trend in Indian agriculture. This sector contributes around 28 per cent of the GDP from about 13.08 per cent of the area and 37 percent of the total exports of the agricultural commodities (Rather et al., 2013)  India is currently producing 257.2 million tonnes of horticulture produce from an area of 23 million ha. Over the last decade, the area under horticulture grew by about 3.8% per annum but production rose by 7.6% per annum. The higher growth rate in horticulture was brought about by improvement in productivity of horticulture crops, which increased by about 28% between 2001-02 and 2011-12. (Anonymous, 2012)

Mineral Nutrition and Nutritional Deficiency The normal green plant is autotrophic that means it can synthesise all its organic substances; provided it is supplied with all the inorganic elements and growth under normal condition. The nutrition of green plant is therefore, solely inorganic. It is, in fact, commonly called mineral nutrition. Element absorbed from the soil by the roots are generally known as Plant nutrition or Mineral nutrients.

Introduction Plant needs nutrients for their growth and development. In a systemic agriculture, nutrients are supplied to the plant in different amount, form and time for the economic and optimum crop production. Green revolution realized in the late sixties of the last century is an outcome of efficient use of improved varieties and nutrient management. Success of the green revolution has increased use of chemical fertilizers in the post green revolution era. Soon the chemical fertilizers become indispensible from all the crops including vegetable and plantation crops. Non judicious use of chemicals in the agriculture has lead to the serious health, soil and environmental hazards. Biofertilizers are considered to be the most safe, promising and economic component of sustainable agriculture. Biofertilizer is a substance which contains living or latent microorganisms which, when applied to seed, plant root or soil, colonizes the rhizosphere or the interior of the plant and promotes growth by providing and essential nutrients or increasing the supply or availability of primary nutrients to the host plant. They can applied in all the agronomic, horticultural and plantation crops.

Introduction Plant hormones (also known as phytohormones) are chemicals that regulate plant growth, which are termed ‘plant growth substances’. Plant hormones are signal molecules produced within the plant and occur in extremely low concentrations. Plant hormones are small, simple molecules of diverse chemical composition: indole compounds, terpenes, adenine derivatives, steroids, aliphatic hydrocarbons and derivatives of carotenoids or fatty acids. In the context of rooted habit and iterative mode of growth, plant hormones are not produced in specialized glands, but in most parts of the plants. Plant hormones are required in minicule quantities and their concentrations at sites of activity are precisely regulated. Changes in hormones concentration and tissue sensitivity mediate a whole range of development processes in plants, many of which involve interaction with environmental factors. First five hormones discovered from the plants were gibberellins, abscisic acid, cytokinins, indole-3-acetiv acid, and ethylene as well as some compound shown more recently to have a regulatory role in plant development, namely, brassinosteroids, polyamines, jasmonic acid and salicylic acid.

What is Precision Farming? It is information and technology based farm management system to identify, analyze and manage variability within fields for optimum profitability, sustainability and protection of the land resource without disturbing the environment. It is basically means adding the right amount of treatment at the right time and right location within a field.

Introduction India is the second most populous country in the world. The per capita cultivable land resource is shrinking day by day. To meet the food, fibre, fuel, fodder, and other needs of the growing population, the productivity of agricultural land has necessarily to be increased. It requires increased use of agricultural inputs like quality seeds, fertilizers, water, agro-chemicals, etc. in such a manner that do not create any environmental problems. Plant needs different chemical elements to grow and thrive. The most important chemical elements include (i) carbon, hydrogen and oxygen, which are basic life building blocks and are available in plenty from air and water (ii) nitrogen, phosphorus and potassium which are the macro nutrients and affect the plant growth significantly (iii) sulfur, calcium, and magnesium as secondary nutrients and (iv) boron, chloride, copper, iron, manganese, molybdenum and zinc as micronutrients in very small quantities.

Introduction The green revolution technologies involving the greater use of synthetic agrochemicals with adoption of nutrient responsive, high yielding varieties of crops have boosted the production output. However, this increase in production has slowed down and in some cases there are indications of decline in growth of productivity and production. Environmental and health problems associated with agriculture. These questions have given rise to a process of serious thinking to safeguard the environment and the quality produce.

Introduction Production system under arid and semi-arid region faces several biophysical constraints (high solar radiation, low and erratic rainfall, high wind velocity, poor soil conditions, etc.). Availability of irrigation water and irrigation potential in these regions are meager. Nutrition, food security and sufficient livelihood options based on agriculture are the major challenges of the people living in these regions. Sustainable productivity in these regions cannot be achieved by monoculture of either seasonal or forage crops, and thus hinges the need for diversifying the cropping pattern through fruit based cropping system which has good potential particularly in the arid and semi-arid regions. Because hunger and malnutrition are often linked to poverty, providing economic opportunities through horticultural production not only helps family incomes, but also addresses food security and nutrition. Thus, cropping system approach for agricultural production has greater significance in these regions.

The Indian arid and semi-arid regions are characterized by immature, structure less, coarse textured soils with low water holding capacity and poor nutrient status. The moisture deficit conditions dominate for a long time throughout the year, which acts as the major limiting factor for establishment and growth of woody plant. Due to harsh edapho-climatic conditions, arable crop production is risky in arid and semi arid regions and threatening the agriculture, under such situation, horticulture based cropping system is considered effective strategy for improving productivity, employment oppornitues and nutritional security. Most of the cropping systems operating in the limited irrigated    area of arid ecosystems have very high water requirement and are highly unsustainable, hence location specific models have to be developed involving fruit crops, multipurpose tree species and arable crops in an agri-silvi-horti production system for increasing irrigation water use efficiency (IWUE), productivity, profitability and sustainability of the system. An attempt has been made to present the status of available research data on some of horticulture based farming systems for arid and semi arid regions

Introduction    Horticultural production can be highly profitable, increase employment opportunities, and bring about increasing commercialization of the rural sector. Horticulture thus has a role to play in a world where 1.1 billion people continue to live in extreme poverty on less than US$1 a day and another 1.6 billion who live between one and two dollars per day (Von Braun et al., 2004). While in past, priority to achieving self sufficiency in food grain production in our country, over the years, horticulture has emerged as an indispensable part of agriculture, offering a wide range of choices to the farmers for crop diversification. It also provides ample opportunities for sustaining large number of agro-industries which generate substantial employment opportunities. The horticulture sector contributes around 28% of the GDP from about 13.08% of the area and 37 % of the total exports of agricultural commodities (Annon, 2007).

Introduction Integrated disease management in horticultural crops are of paramount importance these days, keeping in view that a single management practice cannot control multiple diseases in a particular agro ecological system. It is therefore worthwhile that all management practices are integration of cultural, physical, biological and chemical control strategies. The routine application of fungicides for insurance purposes is not appropriate, as it does not focus the proper attention on the real problem and can lead to resistance and potential environmental issues. Fungal, bacterial, viral diseases cause a great damage to the horticultural crops thus resulting in economic losses to the farmers. The extent of damage varies from year to year, location wise and variety involved. The pathogens responsible for causing diseases affect the crop at various stages of their development right from seedling stage to harvest. The manifestation of a disease can be in the form of different symptoms viz., damping off, leaf spot, blight, wilt, etc. It is thus important to properly identify a particular disease in a crop on knowledgeable basis to reach a particular end of profitability. As such, a proper disease diagnosis is of paramount importance.

Introduction Agriculture in general and horticulture in particular are highly vulnerable to year-to-year climatic variability. Farmers and other decision makers in agriculture make decisions based on their understanding of general climatic patterns for their regions. Crops are constantly threatened by pests such as insects and nematodes, as well as diseases caused by fungi, bacteria, viruses and other micro-organisms. However, depending on weather conditions, the severity is very variable from year to year and often control strategies are applied without considering the climatic variability. Moreover, following the global climate change predictions, meteorological conditions triggering pest population/disease infection cycles are destined to increase, leading to consequent increase of the pests/diseases pressure. Sustainable plant protection strategies rely on weather and climate related pest and disease forecasting models in order to:

Introduction Insect pests cause enormous loss to horticultural crops through direct and indirect invasion on various plant parts. It is estimated from the available information in the literature that there are about 1000 insect pests species on about 100 major and minor horticultural crops in India (Sharma et al., 2011).  The yield and quality of produce are central system point to the sustainable horticultural production. If not properly managed, pests can dramatically reduce crop yield, quality and subsequent returns. We invest a lot of time, money and natural resources into growing horticultural crops. Good pest management could protect this investment from avoidable losses.

Weeds are unwanted and undesirable plants which interfere with the utilization of land and water resources and thus adversely affect human welfare. They can also be referred as plants out of place. Weeds rank first among different agricultural pests causing crop loss. About 30,000 species of weeds have been listed in the world, out of which 18,000 cause serious damage in different ways resulting in considerable loss to agricultural production.

Introducton The Working Group Report of Fifth Assessment Report 2013, by UN’s Inter governmental Panel on Climate Change (IPCC) says, that to limit warming to a rise of 2ºC above pre industrial levels, 1000 gigatones (trillion tons) is the upper limit of CO2 that can be emitted. However, by 2011, we have already emitted 531 gigatones since last 260 yrs and in next 25 years, we will cross 1000 gigatones limit. There is a clear long-term global warming trend. Notably, the 20 warmest years have all occurred since 1981, and the 10 warmest have all occurred in the past 12 years.

Demand and Supply of Horticulture Produce India’s horticulture production rose 30 per cent in the last five years — an impressive rise, considering growth in the preceding five years stood at about 23 per cent. India is currently producing 257.2 million tonnes of horticulture produce from an area of 23 million ha.The area under horticulture grew by about 3.8% per annum but production rose by 7.6% per annum. Improvement in productivity of horticultural crops was noted by about 28% between 2001-02 and 2011-12. Of the 140 million farmers in the country, horticulture engages about 20 million and also contributes about 30 per cent of India’s agricultural GDP. Horticulture contributes 37% of total exports of Agricultural commodities. India is among the foremost countries in horticulture production, just behind China.

Introduction In India, concern for the protection of intellectual properties took place way back in 1911 through the Indian Design Act.  Since then laws (Indian Patent Act, 1970 and its amendments) were enacted for the protection of various intellectual properties. However, the subject matter of intellectual property did not receive attention in agricultural sector, although scientists and farmers have been developing new plant varieties for almost the entire part of our agricultural history.  The development of new crop varieties on a scientific basis began only in the last 50 years with advanced knowledge of genetics and plant breeding. The entry of genetics into plant breeding resulted in major advances culminating in the development of high yielding hybrids and varieties. Indian agriculture witnessed the arrival of hybrids and high yielding crop varieties in the 1960s, during the Green Revolution.

Introduction     The major land mark in the primary food production is the Green revolution during sixties, eventually leading the country to self-sufficiency in food grains. At present, agriculture and allied sector contributes 22% of GDP in India. Total arable area in India is 184 million hectares contributing a total food grain production of 210.01 million tonnes. Horticultural crops including fruits, vegetables, flowers, plantation crops, spices and medicinal and aromatic plants have emerged as a major economic activity in India. Horticulture crops cover over 20.7  million hectares of area, which is approximately 11.25%  of the total gross cropped area of the country and contributes 18-20% of the gross value of India’s agricultural output. India is the world’s second largest fruit and vegetable producing country accounting for 81.29 million tonnes of fruit and 162.2 million tonnes of vegetables (Annon., 2013).

Introduction Food processing is an important sector in agriculture, the scope of which has increased manifold that can help to prevent wastage of perishable commodities to a great extent. But, at the same time, the food processing industries generate a large quantity and variety of food products, provide employment to a large number of people and uplift their economic status. The production, processing and preparation of food, all results in generation of huge quantity of waste material causing health hazards due to environmental pollution. The waste material may be in the form of leaf/ straw, waste during harvesting, food preparation waste, after processing waste, unused material as waste, food processing operation waste, etc. The huge wastage of the food material is due to lack of control on such agri-economy practices. So, the disposal of waste material has become a challenge to the processors, as different agencies are pressurizing for an environment friendly treatment of waste material. The utilization of waste for the production of value added products is very important in the management of food processing waste.

Introduction Foods deteriorate in quality due to a wide range of reactions that may be physical, chemical or biological. The various forms of spoilage and food poisoning caused by micro-organisms are preventable to a large degree by a number of preservation techniques, most of which act by preventing or slowing microbial growth. These include freezing, chilling, drying, curing, conserving, vacuum packing, modified atmosphere packing, acidifying, fermenting, and adding preservatives. Thermal processes such as blanching, pasteurization or heat sterilization have long been employed in practice as economic, efficient, reliable and safe food preservation methods.

Fruit trees like ber, aonla, jamun, tamarind, custard apple, bael, lasora, phalsa, ker, pilu, etc well suited for arid environment, remained under exploited owing particularly to lack of appreciation of their quality as fruits, their economic potential and above all due to non-availability of the needed technology for their profitable cultivation. Because of their curative properties, these fruits have been used in Indian system of medicine such as Ayurvedic and Unani since time immemorial. Apart from their nutritive and medicinal values, quite a few of these underutilized fruits have excellent flavour and very attractive colour. In spite of these quality attributes, most have not undergone any conscious phase of domestication and human selection. Their cultivation is very restricted and they grow mainly wild. Being tolerant to biotic and abiotic stresses, these fruit species are suitable for growing in the disaster- and drought-prone areas.India has a rich heritage of indigenous fruit types. Significant advances have been made in recent times towards providing technology support for their cultivation.

Introduction Packaging and storage are two most important operations in post harvest supply chain of fresh and processed fruits and vegetables. The self-life, damage, loss, sale and profit from commodities depend on storage and packaging parameters. The primary objective of packaging of fruits and vegetables is to protect the contents during storage, transportation and distribution against deterioration, which may be physical, chemical, or biological. Packaging is hence provided at the point of production or processing or at distribution centers. Though packaging forms the last link in the chain of production, storage, marketing and distribution, it still plays an important role in delivering the contents safe from the ‘‘farm gate to the consumer plate.’’ Increase in production can have an impact on the consumer only when the food is wholesome, unadulterated and available under hygienic conditions at an economical price.

Introduction Fruits and vegetables are an important supplement to the human diet as they provide the essential minerals, vitamins and fibre required for maintaining health. For various reasons, this abundance of production is not fully utilized and about 25-30% of it is wasted due to spoilage. Most of fruits and vegetables are seasonal crops and perishable in nature. In a good season there may be a local glut, particularly of fruits, but because of insufficient transport facilities and poor availability of packing materials, the surplus cannot be taken quickly enough to the natural markets in urban areas. Moreover, the surplus often cannot be stored for sale in the off-season because of inadequate local cold storage facilities. Thus the growers do not get a good price for their produce because of the glut and some of it is spoiled resulting in complete loss.

Introduction India has very old and long tradition of flower cultivation. With changing life styles and increased urban affluence, floriculture has assumed a definite commercial status in recent times. Improved communication facilities have increased their availability in every part of the country. Floriculture in India is being viewed as a rapidly growing industry. In India, at present total area under flower crops is about 2,33,000 ha with production of about 17.29 lakh tonnes of loose flowers and 76732 lakh  number of cut flowers (NHB database, 2013).The important floricultural crops in the international flower trade are rose, carnation, chrysanthemum, gerbera, gladious, gypsophila, liastris, bird of paradise, orchids, anthurium, tulip, lilies, etc. All the flowers and ornamentals are the most perishable commodities needs special care during harvesting, handling, storage and transport. The losses can be both, quantitative as well as qualitative, which result in loss in terms of monitory value.

Introduction Marketing sector via value addition has gained momentum with the rapidly growing flora industry. It is the ultimate way to rescue the flowers from the huge postharvest losses. Value addition in form of floral craft increases the economic value and consumer appeal of floricultural commodities and serving as a linkage between growers and consumers, it directly emphasizes the utility of flowers and a necessity for marketing of flowers. Other forms of value addition in flowers like essential oils, tinting, flower-drying, natural dye, art of floral arrangements are gaining momentum and popularising in our country as well.

Introduction Flowers are associated with mankind since the dawn of civilization. Flowers are required for all the functions, ceremonies, rituals and celebrations from dawn to the dusk. In India, flowers are mainly grown for cut flowers and loose flowers purpose. By using best postharvest techniques, we can preserve the flowers ranging from few days to few weeks, but drying or dehydration is a technique by which flowers can be preserved for months to years. India has rich biodiversity comprising of wide variety of ornamental trees, shrubs, climbers, etc. which are not being used as fresh or loose flowers but their branched, twigs, flowers, fruits, cones, stems, roots, bark, etc. can be dehydrated to preserve their beauty and for utilization in dry flower industry.

Introduction Landscape gardening is a very fascinating and interesting subject. It is a money spinner business and people who are involved in designing and preparing landscape gardens are earning handsome money. It is an aesthetic branch of horticulture which deals with application of garden forms, different styles, methods and materials with a view to improve the landscape. Frescos of flowers of old times reveal the association of human with flowering plants which they used in making gardens and planting on road side. In India, the landscape gardening is a developing subject and as such offers much scope for improvement. A beautiful landscape is a vital part of your home and community. A well-planned landscape can save your money by reducing energy consumption.

Introduction Increasing concern about climate change and global warming has created immense awareness among society about green house gas and its reduction. Irrespective of the geographical location, population density and economic development of any region, there is a huge scope for addressing the green house gas emission. Cities have a key role to play in the global agenda for addressing the challenge of climate change. Today, approximately half of the world’s population lives in cities; by 2050, that proportion will probably have increased to two-thirds. India has the highest rate of change of the urban population and will remain above 2% annually for the next three decades. At this rate, an estimated 854 million people will live in Indian cities by 2050.

With the advent of modernization and urbanization, people are shifting from rural to urban areas, thereby, urban population is increasing day by day resulting in congested cities and towns. All around the world, a huge number of buildings are being constructed adding many more in future. Throughout the years, replacement of vegetated surfaces with paved and impervious surfaces in the urban areas have increased the temperature as compared to rural areas, because the paved surfaces absorbs, retain and reradiate more solar energy than vegetation. The ambient temperature in urban area can be as much as 6oC higher than the air in rural areas.

Introduction Landscaping refers to art and science of proper utilization of garden forms, methods and materials for the overall improvement of the place in such a way that it blends with surrounding and creates aesthetics. It is an approach to enhance the appearance of land by altering its contours, and planting trees, shrubs, climbers and various ornamental plants for aesthetic effects. It is the prerequisite for the urban areas that are highly polluted and densely populated. The urbanites now-a-days are facing many problems relating to the health because of imbalance in the environmental conditions.In today’s world, with the rapid pace of urbanization and the growing concern for climate change led to the increasing trend of bringing nature back into cities. Removal of greenery and replaced them with buildings and paved streets increase the surface radiation and air temperature that result to drier and hotter environment for urban cities compared to the rural areas. In this context, the demand for planned and creative exterior landscaping increases which allows the man to re-create an aesthetic environment with breath taking life. Exterior landscaping is the means of bringing man closer to the nature. It is also referred as outdoor landscaping and has gained wide popularity now-a-days because of the expansion of the urban areas along with increase interest of people towards healthier and cleaner environment.

Introduction Humans and grass are inextricably linked to each other. The oldest unequivocal grass fossils are 25 million years old, originating in the Oligocene epoch (Thomasson, 1987). Grasses are one of the first permanent vegetation to reappear after disasters, such as volcanic activity, extended droughts, floods, fires, explosions, abandoned urban ghettos, and battlefields. In the past, landscaping was universally regarded as an extravagance for the affluent or as a decorative for mediocre and average structural design. Today, growers offer hundreds of selections for landscape designers who envision their backyard canvases swept with fulsome grasses. Countries are capitalizing on this industry at a furious pace and turfgrass research can be circuitously, the next moolah machine for enhancing lifestyle, real estate values and tourism revenues.