eChapters

Crop improvement is essential for developing horticultural varieties with superior yield, quality, resistance, and adaptation. This chapter introduces conventional breeding methods such as selection, hybridization, backcrossing, and mutation breeding, along with modern approaches involving molecular markers and biotechnology. Important breeding objectives include disease and pest resistance, abiotic stress tolerance, improved nutritional quality, shelf life, fruit characteristics, and market preference. Modern techniques such as marker-assisted selection, genomic approaches, and genome editing can accelerate the development of improved cultivars. The chapter connects traditional genetic principles with contemporary breeding technologies and explains how integrated breeding strategies can address changing production environments, consumer requirements, and emerging horticultural challenges.

Horticultural crops comprise a diverse group of plants differing in botanical characteristics, growth habits, climatic requirements, economic uses, and production systems. This chapter presents systematic approaches for classifying horticultural crops into fruits, vegetables, flowers, plantation crops, spices, medicinal and aromatic plants, and other specialized groups. Classification based on botanical relationships, life cycle, climate, growth habit, edible parts, and commercial utilization is discussed to provide a practical understanding of crop diversity. Knowledge of classification helps students identify crops, understand their biological relationships, select appropriate production practices, and organize horticultural resources. The chapter establishes an essential foundation for crop-specific management and improvement

Floriculture and landscape architecture combine plant production with aesthetics, environmental improvement, recreation, and urban development. This chapter introduces the production, management, post-harvest handling, and marketing of flowers and ornamental plants. It also explains principles of landscape design, including balance, rhythm, harmony, colour, texture, form, space, and focal points. Softscape and hardscape components are considered in the planning of gardens, parks, institutional landscapes, roadsides, and urban green spaces. The chapter highlights the increasing importance of floriculture and landscape plants for urban biodiversity, pollution reduction, temperature moderation, recreation, and human well-being. Modern applications include turf management, green infrastructure, indoor plants, and peri-urban floriculture.

5.1. Precision Farming Precision farming is an emerging concept in modern agriculture. It is micro management system to arrive at improved agriculture and land management decisions that result from using information delivered by geospatial technologies. In other words it is “Digital Agriculture” involving very large scale farm level mapping, comprehensive data base creation on required resources generated through space based inputs and field observations and making a detailed plan of work for maximizing the yield and reducing the cost on inputs using the decision support system. Precision farming means to do the right thing, in the right place and in right time. It is also called site-specific management (SSM), is the management of an agricultural crop at a spatial scale smaller than the individual field. In many fields, the crop’s environment varies substantially from one part to another

Horticultural crops are vulnerable to numerous insect pests, diseases, nematodes, weeds, and other biological stresses that can reduce yield and quality. This chapter presents integrated pest and disease management as a coordinated approach combining prevention, monitoring, cultural practices, biological control, mechanical methods, resistant varieties, and need-based chemical intervention. Accurate diagnosis and regular scouting are emphasized as foundations of effective management. Biorational products, pheromones, microbial pesticides, and natural enemies can reduce dependence on conventional pesticides. Responsible chemical use requires correct product selection, dose, timing, coverage, safety measures, and resistance management. The chapter promotes economically effective and environmentally responsible crop protection while safeguarding beneficial organisms, workers, consumers, and ecosystems.

Frequently referred to as "vegetable confetti," microgreens are produced from a variety of commercially grown food crops, including cereals, vegetables and herbs. They contain completely formed cotyledons that may or may not have partially extended genuine leaves (Treadwell et al., 2020). Seven to twenty-one days after germination, the exact piece of the delicate plant's growing stem is removed, along with the cotyledon leaves and maybe the real leaves (Galieni et al., 2020). Despite their small size, these useful micro veggies offer exceptional sensory qualities, including flavour, texture, scent, look and unusual colours. They normally have a height of 2-8 centimetres.

Horticultural commodities are highly perishable because they remain physiologically active after harvest and are susceptible to moisture loss, respiration, microbial deterioration, mechanical injury, and physiological disorders. This chapter introduces principles of harvesting maturity, handling, grading, sorting, packaging, storage, transportation, and cold-chain management. Appropriate post-harvest practices help preserve freshness, nutritional quality, appearance, and market value while reducing losses. The chapter also examines value addition through processing, drying, preservation, packaging, and development of new horticultural products. Efficient post-harvest systems connect production with consumers and markets and are particularly important for high-value fruits, vegetables, flowers, spices, and other perishable commodities. Together, improved technology, quality management, and value addition can significantly increase farmer income and strengthen horticultural value chains.

6.20. Role of Micro Nutrients in Vegetable Production 6.20.1. Born 6.20.1.1. Importance Warington first demonstrated the essentiality of boron in plants in 1923 in broad bean (Vigna fava L.). Boron markedly affects nitrogen uptake and the metabolism of nitrogen compounds. The protein contents of young leaves decrease and soluble nitrogen compounds, particularly nitrate accumulate under the condition of severe boron deficiencyBoth with and without boron added, nitrate reductase activity was obviously higher with Ca (NO3 )2 than with (NH4 )2 SO4 . With boron added, nitrate reductase activity in leaves increased from the basal to the top parts of the plant.

Microgreens, popularly known as “vegetable confetti,” are tender young greens that are grown from seeds of cereals, vegetables, and herbs. These shoots are typically harvested 7-21 days after germination when they are just (2.5-7.5 cm tall. At this stage, microgreens have a central stalk, two mature cotyledon leaves, and a second pair of tender true leaves. Compared to baby greens and sprouts, they are bigger than sprouts and smaller than baby greens. Their distinctive color, texture, and flavour can be either sweet or spicy.). Microgreens are especially important because of their high amount of micronutrients and bioactive substances.

1. Education 1.1. Some Landmarks of Agricultural Education Including Vegetable Science Year Landmarks 1952 Indian Council of Agricultural Education (ICAE) set up (worked up to 1964 under ICAR). 1958 First ‘Deemed University‘ status bestowed on Indian Agricultural Research Institute (IARI). 1959 Chief of Agricultural Education and ex-officio Secretary to ICAE appointed. 1960 Emergence of SAUs, starting with Pantnagar, based on the recommendations of Joint Indo-American Teams. 1965 Standing Committee on Agricultural Education replaced the Education Panel. 1965 ICAR reorganization with four Divisions including Agricultural Education 1966 ICAR developed Model Act for Agricultural Universities in India.

Pedigree method of plant breeding is defined as a method of breeding in which individual plants are selected in the segregating generations from a cross on the basis of their desirability judged individually and on the basis of a pedigree record. This has been the most widely used method of plant breeding in all the self-pollinated crops and still continues to be so. This method has been first described by H. H. Lowe in 1927. This is the most widely used method to handle segregating generations following crosses between two parents to develop new cultivars combining desirable traits from both the parents. In this method, superior types are selected in successive segregating generations and a record is maintained of all parent-progeny relationships. The records help the breeder to advance only progeny lines with plants that exhibit genes for the desired traits. Selection begins in F2 generation where individual plants are selected which in judgment of breeder will produce the best progeny in F5/F6 when the selection is finally concluded. In F3 and F4 generations, many loci will have become homozygous and family characteristics begin to appear. By F5/F6 generation, most families are expected to be homozygous and uniform and hence selection within such families is no longer effective. 

Single seed descent (SSD) method of breeding is applicable to self-pollinated crops. The method of single seed descent (SSD) was born out of a need to speed up the breeding programme by rapidly inbreeding a population prior to initiating individual plant selection and evaluation while reducing a loss of genotypes during the segregating generations. SSD procedure is based on advancing generations through single seed from each plant in each generation. This separates the inbreeding phase from the selection phase and the population reaches F6 generation faster. This procedure carries forward maximum number of F2 plants to a stage near homozygosity, i.e. F6. It was first proposed by C. H. Goulden in 1941 when he obtained the F6 generation in two years by reducing the number of generations grown from a plant to one or two while conducting multiple plantings per year using greenhouse and off-season planting. H. W. Johnson and R. L. Bernard described the procedure of harvesting a single seed per plant for soybean in 1962. However, it was C.A. Brim who, in 1966, provided a formal description of the procedure of single seed descent, calling it a modified pedigree method.

Introduction

Quality seed plays seminal role in augmenting agricultural production as well as productivity. Only by using good quality seeds, productivity can be enhanced up to the tune of 15-20 per cent alone, but under optimum management, the increment may touch upon up to 45 per cent depending upon the crops since the efficiency and efficacy of all other inputs in the production technology gamut are contingent upon the quality of seeds being used. Since antiquity the importance of quality seed to enhance agricultural productivity is well evident as mentioned in old testimonials, literatures, scriptures, treatises, epics, and many other ancient documents.

Seed quality is the major decisive factor governing stand establishment of any crop and thus having immense importance and bears utmost priority in case of high value, low volume crops like vegetables in particular and for high volume low value crops in general for enhanced productivity and production as well (Mandal et al., 2015). A number of diverse materials/ treatments at varying doses have been used to increase the rate and uniformity of seedling emergence in wheat and rice, which are generally categorized for seed enhancement, which is a kind of value addition.

Seed enhancement may be defined as post-harvest treatments that improve germination and seedling growth or facilitate the delivery of seeds and other inputs/materials required at the time of sowing smoothly. Seed enhancement technology predominantly possess a central objective to further improve seed performance by treating with specific additives/ chemical/ organics/ botanicals, etc. under very specific regimes and with the aid of certain planting equipments to grow uniform crop obviously to harness higher productivity and production (Halmer, 2006). Various techniques have been employed to assure superior performance of additives in different crops and most have been found to have immense commercial application (TeKrony, 2006). This includes three general areas of enhancement: pre sowing hydration treatment (priming), coating, pelleting technologies and seed conditioning.

Introduction

Seed as an input is the precursor for agricultural development as it alone can guarantee 20-30 per cent share of crop productivity (Koudinya and Kumar, 2014). Rigveda, the world’s most ancient scripture available, prescribes the importance of seeds as “Subeejam Sukshetre Jayate Sampadyate” which literally means, “A good seed in a good field can lead to the prosperity and posterity of the entire human race”. Seed production is indeed important to take care of a country’s food and nutritional security needs. At the same time, seed export across countries is vital for ensuring competitiveness in the domestic seed industry besides generating employment and valuable foreign exchange which in turn can be used for scaling up the seed sector’s efficiency itself (Poonia, 2013). As a matter of fact, seed trade is one of the reasons for huge advances made in the Indian seed industry through development and exchange of genetic transformation, marker-assisted breeding and nanotechnology (Nandi et al., 2013). As of 2014-15, global seed industry has reached USD 45 billion in which international seed export alone was worth USD 10 billion. Further, with the estimated growth rate of 9.2 per cent during 2015-2020, the world seed business is expected to be over USD 92 billion. Presently, USA, China, France, Netherlands and Brazil are the top markets comprising more than 66 per cent of the global share in seed trade. Corn, soybean and vegetables account for more than 75 per cent of the total global seed market volume. As of 2014-15, the value of the Asian vegetable seed market was USD 6.75 billion in which China had a major share (41 per cent) and the Indian share was around 7 per cent. Moreover, the world vegetable seed market alone is expected to grow at the rate of 7 -8 per cent per annum and reach USD 8.8 billion by the year 2020 (Parashar and Kumar, 2016).

Introduction

Seed is a critical and vital input that draws an explicit line between the success and failure of any agricultural production programme. In fact progressive history of agriculture has been a history of seed development and production. The mankind has been attempting to select better seed and employ better seed production techniques volitionally or in-volitionally ever since it divested nomadic life for the settled one. Initial attempts were confined to selection of useful crops followed by selection of better sorts and land races among the available native genetic resources. The introductions, hybridization followed by selection of better types and modern breeding tools inclusive biotechnological interventions have been extensively employed to breed better seed. Considering that research in crop improvement can turn little stone unless the quality seed with desired attributes is made available to the farmers. Government of India set up enforcement of provisions of Seed Act, 1966 for certification of seed as per prescribed minimum standards. Central Seed Certification Board was established in 1972 to exhort the central and state governments for producing genetically and physically pure and physiologically viable seed. The seed production programmes and rules were progressively honed to meet the ground situations. Initially the seed was considered as the exclusive bastion of public sector but the private sector got actively involved in seed production. WTO the seed still became a very open subject and the Seed Act was modified in 1988 and 2001 to permit import and export of quality seed, respectively. Despite of all these positive developments in seed sector, the availability of seed is still far from satisfactory. As on today private sector dabbles in low volume high cost seed due to economics and storage factors but the high volume less cost is still a virgin for private sector and is predominantly done by the public sector. Crop improvement is no more an art and science of improving hereditary of crop plants but has become a starker and competitive business under which the stronger would survive and the weaker get eliminated.

Business was abysmally shattered at the terminal end of the Second World War. This forced some nations to sign some tariff related global

Organic agriculture or farming is very much native to India. Whosoever tries to write a history of organic farming will have to refer India and China. The farmers of these two countries are farmers of 40 centuries and it is organic farming that sustained them. This concept of organic farming is based on following principles:

• Nature is the best role model for farming, since it does not use any inputs nor demand unreasonable quantities of water.
• The entire system is based on intimate understanding of nature’s ways. The system does not believe in mining of the soil of its nutrients and do not degrade it in any way for today’s needs.
• The soil in this system is a living entity.
• The soil’s living population of microbes and other organisms are significant contributors to its fertility on a sustained basis and must be protected and nurtured at all cost.
• The total environment of the soil, from soil structure to soil cover is more important.

Introduction

Seed pathology has been recognized as its own specialization for a relatively brief time, and the term “Seed Pathology” was first coined by Mary Noble in the 1940 (Agarwal and Sinclair, 1997). Seed pathology is an essential part of seed technology as well as a sub discipline of plant pathology. According toAgarwal and Sinclair (1997), it may be defined as the study of seed borne disease and pathogens carried with seed. It also includes studies on the mechanisms of seed infection, seed transmission, the role of seed borne inoculum in disease development, methods for the detection of seed borne pathogens and non-pathogens, seed certification standards, mycotoxins and mycotoxicoses, and various methods for control of seed borne disease. Seed pathology includes the study of diseases and deterioration caused by bacteria, fungi, nematodes, viroids, viruses, physiological and mechanical disorders.

Neergaard Paul is considered the father of seed pathology. He was one of the founding father and later served as Director of the Danish Government Institute of Seed Pathology for Developing Countries, Copenhagen, Denmark, from 1956 to 1974. He served as the Chairman of the Plant Disease Committee of the International Seed testing Association (ISTA). During his tenure as Chair of ISTA, he helped standardize methods for the detection of seed borne fungi.Neergaard (1977) authored a two-volume text entitled “A Seed Pathology”. This text has served as a reference and teaching standard for the science of seed pathology throughout the world (Agarwal and Sinclair, 1997). This text focused on a wide variety of seed pathology issues, ranging from the economic significance of seed borne diseases to the assessment of seed borne inoculum.

6.1 Introduction

This chapter presents the impact evaluation (summative) of the vegetable IPM programme that was conducted by the Central Integrated Pest Management Centre (CIPMC) Jammu in the sub-tropical areas of Jammu, Samba and Kathua districts. These districts were selected purposively as the maximum numbers of IPM-FFS were conducted by CIPMC in these three districts. Ex-post facto research design (with/without) was employed for conducting the impact evaluation of vegetable IPM-FFS programmes conducted between 2003-04 and 2007-08. This design uses a pre-existing situation as the treatment instead of actual manipulation of the variables. An ex post facto study uses a comparable site as the control to find the programme effects.

An Ex-post facto research is a systematic empirical inquiry in which the scientist does not have direct control of independent variables because their manifestations have already occurred or because they are inherently not manipulated. Inferences about relations among variables are made, without direct intervention, from co commitment variation of independent and dependent variables. This kind of research is based on a scientific and analytical examination of dependent and independent variables. Independent variables are studied in retrospect for seeking possible and plausible relations and the likely effects that the changes in independent variables produce on a single or a set of dependent variables. The ex-post facto design was also used by Peshin and Kalra (1998); Reddy (2006); Maraddi et al., (2007) while evaluating the IPM programmes. The indicators for evaluation of the IPM-FFS programme were selected based on the requirements of the research design.

1. Introduction

Antioxidants are defined as molecules which can be safely interact with free radicals and terminate the chain reaction before vital molecules are damaged (Nidhi and Gaurav, 2012). Naturally occurring antioxidants to replace synthetic antioxidants which are being restricted due to their carcinogenicity (Abdel Hameed, 2009). The antioxidant phytochemicals such as polyphenols, flavanoids and related compounds found in medicinal plants have received increasing attention for their potential role in prevention of human diseases (Upadhyay et al., 2010).
 
The genus Ophiorrhiza belongs to the family Rubiaceae and consists of about 150 species and distributed in tropical and subtropical Asia. Species of Ophiorrhiza are economically important and many of these species contain a high value anticancerous compound, a cytotoxic alkaloid camptothecin and other valuable alkaloids. Ophiorrhiza pectinata Arn. is a herbaceous plant and is distributed over peninsular India and Srilanka. A preliminary study conducted in O. pectinata also contains this important alkaloid (0.0040mg/g dry wt). Leaves and stem contain traces of hydrocyanic acid. The main objective of the present study is to evaluate the antioxidant and radical scavenging property of the chloroform methanol and water extract of whole plant of O. pectinata. 

In spite of late introduction, different forms of chilli (Capsicum spp.) did spread throughout the length and breadth of India. Diverse soil and climatic conditions prevailing in different parts of Kerala have contributed to the development of different ecotypes in chilli. Warm humid climate in the coastal belts, dry and arid climate in the central eastern parts and mild subtropical to temperate climate in the high ranges provide ideal condition for development, maintenance and spread of different ecotypes in the crop. Plethora of chilli varieties capturing the markets of Kerala comprise of different species.

Capsicum chinense commonly known as Ney Mulaku, Karanampotti Mulaku is gaining popularity in the state due to increasing demand from Maldives during Ramzan period. Hence the crop is also known in yet another name Mali Mulaku. This species is characterized by perennial and spreading nature with medium sized oblong to round, fleshy and highly pungent fruits. It  yields substantially higher under shaded condition and there is less incidence of diseases like bacterial wilt and collar rot. Hence the species is ideal for homestead cultivation. Due to its tolerance to shade, the species can be successfully grown as an inter crop in coconut, rubber, pepper and banana plantations.