eChapters

Introduction

Potato (Solanum tuberosum) is a widely cultivated and essential staple crop globally, known for its versatile culinary applications and nutritional value. With the exception of Kerala, potatoes are grown in practically every state in India under a variety of climatic circumstances. During the brief winter months, which span from October to March, 82% of potatoes are grown in plains. In West Bengal, potatoes are the most widely grown crop after grains (Chakraborty, 2012). Originating from the Andes region of South America, potatoes have become a crucial part of diets worldwide, providing carbohydrates, vitamins, and minerals. With a rich history dating back to ancient civilizations, including the Irish potato famine, this crop has played a significant role in shaping agricultural practices and food security.

Introduction

Okra (Abelmoschus esculentus (L).is a cross pollinated vegetable crop. Okra originated near about Ethiopia& its cultivation became widespread in North Africa and the Middle East (Lamont, 1999; Tindal, 1983). Okra is grown commercially in many nations, such as Ethiopia, Cyprus, India, Bangladesh, Afghanistan, Pakistan, Turkey, Iran, Western Africa, Yugoslavia, Myanmar, Japan, Malaysia, Thailand, Brazil, Southern United States, and Ethiopia (Purseglove, 1987; benjawan et al. 2007; Qhureshi, 2007). It is a widely used, high-valued vegetable crop that is commercially grown for its tender pods during the spring, summer, and kharif seasons. Okra has high moisture content, making it a good source of vitamins, minerals, and mucilage. Okra is cultivated and consumed commercially throughout the year in many different places of India. 

Introduction

Chili peppers, also spelled chile or chilli, are varieties of the berry-fruit of plants from the genus Capsicum, which are members of the nightshade family Solanaceae, cultivated for their pungency. Chili peppers are widely used in many cuisines as a spice to add "heat" to dishes.

Botanical Name : Capsicum annum

Family : Solanaceae

Chromosome Number (2n) : 24

Diseases of Chilli

 1. Powdery Mildew

The disease was first reported from Morocco in 1937.

Introduction

Brinjal (Solanum melongena), is a self-pollinated plant also known as eggplant, is an easily cultivated plant belonging to the Solanaceae family.Brinjal ishigh productive vegetable and easily grown everywhere.It is also known as poor’s man vegetable. Brinjal is cultivated widelyand grown as a vegetable crop in any environment. Brinjal grown large amount in India, Pakistan, Chinaand United States. The origin of the brinjal is India. In Brinjaleconomic parts are fruit. It is a high nutritional valuable food.The brinjal fruit and whole plant use as a medicine in some area. It is cultivated everypart of India except high attitude, all the year around. Depending upon consumer’s preference and yield, different types of cultivars are cultivated.Somewild spp of brinjal are fond in northeast states of India and Malaysia. Solanum insanum, a wild cultivar of the plant, mainlyobserved in the dry and hilly region of west Bengal.Some yellow color brinjal varieties are found in Malaya.

Introduction

The apple (Malus domestica), a valuable and economically significant crop, is grown in India’s northwestern Himalayan region. After Orange, Banana, and Grape, it is the fourth most widely grown fruit worldwide. The tree is native to Central Asia, where its wild ancestor Malus sieversii is still found today. Apples have been cultivated in Asia and Europe for thousands of years. The world’s largest apple grower is China and in India it is grown in the hills of Uttarakhand, Himachal Pradesh, and Jammu & Kashmir in India. The average summer temperature during the active period is about 21-24°C growing season. Apple does this best in areas where trees are dormant. The color development will be better in winter when plenty of sunlight hits. It is possible even at an altitude of 1500 -2700 meters from sea level. 1000-1250 mm well distributed rainfall during the growing season which is most suitable for optimal growth and fertility of apple trees.

Introduction

Pomegranates are a tasty, juicy, sweet fruit that are rich in nutrients. Punica granatum is its scientific name, and Iran is where it was originally found. Because pomegranates may be cultivated effectively in regions of the nation with dry climates, they hold a distinctive place among the fruits that are grown there. Other names for pomegranates include Dadim in Sanskrit, Bedana in Bengali, Anar in Hindi, and Madulai in Tamil. The states of Maharashtra, Gujarat, Rajasthan, Karnataka, Andhra Pradesh, Tamil Nadu, and Uttar Pradesh are the primary locations for its cultivation. From the perspective of export, this fruit is also highly significant.

Pomegranate is referred to as a “Super Food” because of its many health and nutritional advantages. It is one of the greatest sources of antioxidants and has significant medicinal and nutritional value. Ripe fruit has a pleasant and nutritious juice. Juice from pomegranates in the summer, sherbet is incredibly refreshing. Pomegranates are regarded as a medication for long life and excellent health in the Ayurvedic medical system.

Grapevine

One of the fruits that is grown worldwide most commonly, grapes are said to have a longer history of human interaction than either rice or wheat. Apart from their nutritional significance, grapes are today regarded as one of the most lucrative crops. The grapes are farmed for a variety of uses, including the manufacture of raisins, wine, juice, canning, and table grapes. More grapes are produced worldwide than any other fruit crop. Approximately 11 million hectares are devoted to growing grapes, which yield 75 million tonnes yearly. More than half of the world’s supply of grapes was produced in Spain, Italy, and France. Grapes are cultivated in India in both tropical and subtropical climates. In Maharashtra, Karnataka, Andhra Pradesh, and Tamil Nadu, commercial grape production only started in the last 40 years. Grapevine production affect many sever diseases like downy mildew, powdery mildew, Anthracnose, Black rot, Rust, Bacterial canker and abiotic causes.

Introduction

The Myrtaceae family includes the guava (Psidium guajava L.), a significant fruit crop in India (Nakasone and Paull, 1998). It was originated from Mexico or Central America and later spread to Asia, Africa and Europe. Some of the guava cultivars, which are used to produce seeds-free fruits, are triploid (2n=3x=33) while some are diploid (2n=22). It is primarily grown in tropical and subtropical nations including India, China, Thailand, Pakistan, Bangladesh, Mexico, Indonesia, and Thailand. The nutritionally rich, vitamin and mineral-rich guava is referred to as the “poor man’s apple”.

Introduction

Carica papaya is a tree-like herb that grows 2 to 10 meters tall and is often unbranched, cylindrical & hollow stem Fruits are large, cylindrical, with fleshy orange pulp. Numerous, small, black, round seed with gelatinous aril. Papaya leaves have historically been used to treat thrombocytopenia brought on by a dengue infection. (Chinnappan et. al. 2016; Sharma et. al. 2019). Papaya fruits have healing capabilities against cancer, antimicrobial anti-malarial, anti-tumor, anti-inflammatory, antioxidant, immune-boosting, blood sugar-lowering, wound healing, gastro-protective, and capable of curing fever, asthma, jaundice, irregular menstruation, and beriberi. The pharmaceutical and wellness industries have seen a steady rise in demand for papaya as a result of researchers’ recent discovery of their therapeutic potential.

Introduction

The innermost layer of the pericarp is the endocarp. The segments are also called “liths”, and the space inside each lith is a locule filled with juice vesicles, or “pulp”. From the endocarp, stringlike “hairs” extend into the locules, which provide nourishment to the fruit as it develops. Citrus fruits are notable for their fragrance, partly due to flavonoids and limonoids (which in turn are terpenes) contained in the rind, and most are juice-laden. The juice contains a high quantity of citric acid giving them their characteristic sharp flavour. The genus is commercially important as many species are cultivated for their fruit which is eaten fresh, pressed for juiceor preserved in marmalades and pickles.

Introduction

The banana (Musa parasidiaca) belongs to the Monocotyledons class, the Zingiberales order, and the Musaceae family. It is indigenous to Southeast Asia. They thrive in tropical and subtropical climates and are widely grown in countries such as India, China, the Philippines, Ecuador, Brazil, Uganda, Colombia, and Indonesia. A banana’s average length is 7 to 9 inches, and its diameter is 2 to 3 inches. Bananas are frequently planted during the rainy or monsoon season, when the soil is moist and the young plants can absorb enough water. In tropical and subtropical climates where they are commonly grown, the planting season typically runs from April to June. Planting may take place in September or October in areas with a dry season, following the rainy season.

Mango (Mangifera indica) is a tropical fruit tree that is well-known and cherished for its delicious, sweet, and juicy fruit. It is one of the most widely grown and economically important fruit crops in the world, primarily cultivated in tropical and subtropical regions. Mangoes are not only enjoyed for their taste but also for their nutritional value, as they are rich in vitamins, minerals, and antioxidants.

However, like all agricultural crops, mangoes are susceptible to a range of diseases that can impact their growth, yield, and fruit quality. These diseases can be caused by various pathogens, including fungi, bacteria, viruses, and nematodes.

1. Powdery mildew (caused by Oidium mangiferae) is a fungal disease that affects mango trees, leading to significant losses in fruit production if left unmanaged.

1. Introduction

Horticultural crops have emerged as a cornerstone of India’s agricultural sector, wielding substantial influence over the nation’s economic landscape. Comprising an extensive range of fruits, vegetables, ornamental plants, plantation crops, spices, and medicinal herbs, this sector has witnessed remarkable growth and transformation in recent years. The significance of horticultural crops extends beyond sheer economic value, permeating various facets of Indian agriculture and socio-economic development (Ravichandra & Ravichandra 2014).The unique agro-climatic diversity of India allows for the cultivation of an unparalleled variety of horticultural produce, contributing to its global prominence as a horticultural powerhouse.

Introduction

A new method of producing food is emerging via sustainable agricultural techniques, which prioritise ecological harmony, resource preservation, and sustainability above short-term gains. In light of the pressing issues of a warming planet, dwindling natural resources, and an ever-increasing human population, these methods are crucial. Soil fertility and health are enhanced by the use of sustainable agricultural practices such as crop rotation, decreased tillage, and organic farming, which minimise chemical inputs. It promotes efficient water management practices, such as collecting rainwater and using drip irrigation, to cut down on waste.

Introduction

Manipulating and controlling matter at the nanoscale, usually at dimensions less than 100 nanometers, is the focus of nanotechnology, also abbreviated as “nanotech,” a revolutionary branch of engineering and science. Particular material characteristics and behaviours, drastically different from their macroscopic equivalents, become apparent at this very microscopic size. With nanotechnology, we can design and build buildings, gadgets, and materials with hitherto unseen levels of control and accuracy.

Introduction

A subfield of horticulture known as “urban horticulture” is concerned with the care, maintenance, and use of plants in urban settings. Urban gardening encompasses a broad range of plant life, from ornamental plants to trees, shrubs, flowers, vegetables, and even fruit trees.

Plants, both ornamental and edible, are the specialty of urban horticulture, a subfield of horticulture concerned with their care and production in urban and peri-urban settings. Horticulture is the study and practice of growing plants for their aesthetic and functional value in urban and suburban settings.The practice of urban horticulture includes all aspects of creating and maintaining urban gardens, parks, and other green areas. The practice of urban horticulture entails improving the visual, ecological, and recreational qualities of built environments through the deliberate selection, placement, and ongoing care of plants.

Introduction

Pruning is the practise of cutting back, shaping, or removing branches, shoots, or leaves from plants in order to improve their overall health, regulate their development, make them seem nicer, or increase their output. Thinking about the plant’s requirements, growth habits, and intended results is essential in this horticulture discipline. Pruning is an essential tool in arboriculture, gardening, and agriculture; its use varies from plant to plant and from purpose to goal, from encouraging strong development to improving the plant’s aesthetic appeal. In the grand scheme of things, pruning is a deliberate action taken to improve the health and productivity of plants in their natural habitats.

Introduction

An revolutionary method of agricultural management, precision agriculture (or precision farming) optimises each step of the farming process using data-driven tactics and cutting-edge technology. By adapting agricultural methods to the unique requirements of each field—or even just a tiny portion of a field—precision agriculture aims to increase efficiency, decrease resource waste, and boost crop yields. To accurately monitor and control aspects including soil conditions, crop health, and environmental variables, this technique integrates technologies like as GPS technology, remote sensing, IoT devices, and data analytics.

Horticultural medicinal plants

Throughout recorded history, people have held medicinal plants in high regard due to the many health benefits they provide. Natural cures abound among these botanical marvels, and they may alleviate a wide range of health problems. The wide variety of bioactive substances found in them has been used to create pharmaceutical medications and alternative treatments, suggesting that they may have curative properties. Medicinal plants, such as aloe vera and turmeric, offer a wide range of uses, including pain relief, the treatment of chronic diseases, and general health improvement. A newfound respect for traditional herbal medicine’s knowledge and the need of preserving these priceless resources has emerged in recent years, as contemporary medicine investigates the plants’ unrealized potential.

Introduction

More and more people are turning to indoor gardening as a fun and functional way to experience nature without leaving the house. A wide variety of plants may be cared for in the comfort of one’s own home by using this method. Indoor gardening may be adjusted to fit any space, whether it a little flat or a large mansion. Improving air quality, adding a supply of fresh herbs, veggies, or colourful flowers, and increasing interior aesthetics are just a few of the many advantages. Regardless of the season or environment, indoor gardeners are able to produce a broad range of plant species thanks to the comfort of regulated temperature and lighting. In addition, tending to houseplants may be a calming hobby that pays dividends in the form of a feeling of achievement and peace of mind.

Introduction

Instead of using soil, the unique technique of hydroponics grows plants in a nutrient-rich water solution. Using a tightly controlled environment, gardeners may optimise factors including sunlight, pH balance, and nutrient levels to maximise plant development in this agricultural approach. Hydroponics allows plants to grow more quickly and produce more by delivering nutrients straight to their roots. Water efficiency, less soil-borne disease risk, and the capacity to grow crops in non-arable or urban areas are just a few of the benefits of this technology. More and more people are turning to hydroponics as a means to grow their own food in a more regulated and efficient manner, all while reducing their impact on the environment.

Introduction

Food crops like fruits and vegetables, nuts and seeds, herbs and sprouts, mushrooms and algae, flowers and seaweeds are all part of horticulture, which is also the study and practice of producing non-food crops like grass and decorative trees and plants. Growing plants is known as horticulture in Latin. For several reasons, horticulture is very significant: 

1. Crop Diversity and Nutrient Density: Horticulture is an essential part of the food production system since it produces so many different kinds of fruits, vegetables, and nuts.

2. A large number of people throughout the globe rely on this industry for their livelihood, since it is a significant part of agriculture. The commercial value of horticultural goods is typically rather significant.

Introduction

Climate resilience is the capacity of a system, community, or person to foresee, prepare for, react to, and recover from the consequences of climate change while simultaneously preserving critical functions and minimising long-term harm. This ability is described as the ability to adapt to climate change. In order to handle the issues that are brought about by a changing climate, which include increasing temperatures, severe weather events, rising sea levels, and altering weather patterns, it is necessary to take a proactive approach.

Greenhouses have become an essential part of modern agriculture as they offer controlled environments for plant growth, research, and horticultural practices. This chapter discusses the various applications of greenhouses, which include extending growing seasons, improving crop yields, supporting botanical research, and producing ornamental plants. Additionally, it emphasizes the importance of repair and maintenance in greenhouse operations. Understanding the repair and maintenance protocols is crucial to ensure the sustained functionality of heating systems, water management, and structural components.

12.1 Introduction

It is important to note that growing crops in a greenhouse requires a significant f inancial and administrative commitment. In order to ensure profitability, firms need to consider both cash flow and profitability. An enterprise budget can help address profitability potential by itemizing costs incurred across a typical production cycle. On the other hand, a cash flow budget is used to analyze the cash inflows and outflows of the enterprise over a fixed period of time.

11.1 Introduction

Horticultural crops are grown by farmers with the aim of generating profit. For a business to prosper, it is crucial that its products are delivered to customers who are satisfied with their quality and value, and who will continue to purchase them. Therefore, growers must continually meet consumers’ demand for fresh greenhouse-grown items by utilizing all available technology and expertise in producing, harvesting, packaging, storing, transporting, and marketing their goods. The needs of the consumer should drive production.

In the world of greenhouse cultivation, achieving optimal plant growth, maintaining robust health, and effectively managing pests is crucial for successful crop production. It requires a comprehensive approach to balance various factors, including chemical growth regulation, disease control, and pest management. Greenhouse technology plays a vital role in providing a controlled environment to fine-tune these variables. As we dive into the details of this delicate balance, it becomes clear how important it is to combine science and technology to find innovative solutions to ensure thriving crops while minimizing environmental impact.

9.1 Introduction

The world is facing various challenges, including climate change, population growth, and decreasing fertile land. It is necessary for the agricultural sector to shift towards sustainability and innovation. To revolutionize traditional farming practices, alternative cropping systems and advanced technologies like plant tissue culture in greenhouses are being explored. The goal is to optimize resource utilization, enhance crop resilience, and reduce the environmental impact. By adopting cutting-edge technologies, such as plant tissue culture, crops can be propagated and cultivated within controlled environments like greenhouses, ensuring global food security and meeting the growing population’s demands.

8.1 Introduction

The management of greenhouse environments has become crucial in modern agriculture due to increasing concerns about climate change and the urgent need for sustainable farming practices. Greenhouses, also known as “controlled environment agriculture” facilities, have revolutionized the way we grow food by extending the growing season and allowing us to cultivate a wide range of plants in various climates. They achieve this by precisely regulating environmental elements such as temperature, humidity, light, and carbon dioxide concentration, which are all crucial for optimizing plant growth and yield.

7.1 Introduction

The practice of greenhouse management has become a crucial method for extending growing seasons, improving crop quality, and maximizing yield potential in modern agriculture. Shedding and ventilation are critical elements that determine the effectiveness of greenhouse operations. They are pivotal in creating a delicate ecology where plants can find shelter in a controlled environment that protects them from the elements while enabling exact changes to temperature, humidity, and light.

6.1 Introduction

Greenhouses play an essential role in modern agriculture and horticulture by providing a regulated environment for plant development. To ensure optimal growing conditions and maximum yields, it’s crucial to maintain the temperature inside these structures effectively. This leads us to the fascinating subject of “Heating and Cooling of Greenhouses,” where we investigate the delicate balance between temperature, humidity, and ventilation to promote plant health and production. With greenhouses, growing seasons can be extended, a broader range of crops can be grown, and even plants that would not do well in the local environment can thrive.

Solar heat plays a pivotal role in the functioning of greenhouses, serving as a primary energy source that influences the internal climate crucial for plant growth. The absorption of solar radiation by the greenhouse covering material initiates a complex process of heat transfer, involving conduction, convection, and radiation. This solar energy, once absorbed, contributes to elevating the temperature within the greenhouse, creating a favorable environment for plants. A fundamental understanding of solar heat dynamics is essential for optimizing greenhouse design and operational efficiency.

4.1 Introduction

Experts predict that the global population will exceed 9.6 billion by 2050. This, coupled with the rise of urbanization, the scarcity of arable land, and the destructive effects of climate change, poses significant challenges for agriculture and food production worldwide. To combat these challenges, new horticultural research techniques must be implemented to enhance productivity and efficiency, improve nutrition, and ensure food security, especially during times of crisis like the COVID-19 pandemic. Greenhouse technology has made remarkable strides in recent years, allowing for the manipulation of internal growth elements like temperature, light intensity, and CO2 concentration to create optimal growing conditions

3.1 Introduction

Greenhouses are buildings with a controlled environment that facilitate plant culture and development. They offer protection from adverse external weather conditions, high temperatures, strong winds, and pests, while providing an ideal environment for plant growth. The construction of a greenhouse involves the use of various materials to ensure its structural stability, longevity, light transmission, and insulation. The different components of the greenhouse, such as the frame, flooring, and covering, are constructed using different materials such as wood, aluminum, steel, concrete, soil, gravel, and more.

2.1 Introduction

Greenhouses are used mainly for cultivating vegetables and fruits during the off-season to provide favorable growing conditions. Proper management of the greenhouse structure is necessary to create these off-seasonal favorable conditions for plants. Factors like site selection, location, atmospheric conditions, cropping pattern, and structure of the greenhouse are considered during the development of a greenhouse. The National Committee on the use of Plastics in Agriculture (NCPA-1982) suggests conducting site-specific greenhouse technology trials before implementation across the nation.

1.1 Introduction

The greenhouse industry is rapidly growing, particularly in mild climates, and is crucial for providing access to fresh and clean food. Greenhouses provide an optimal climate for crops to grow and protect them from outside pests. Furthermore, greenhouse production has the potential to reduce water waste and implement integrated protection and production (IPP). It is essential to consider the environmental impact of protected cultivation, and Life Cycle Assessment (LCA) is a valuable tool for evaluating these impacts.

1 What is the scientific name of Dill

 a) Acorus calamus b) Pimenta dioca

 c) Pimpinella anisum d) Anethum graveolens

 2 Important chemical content present in Asafoetida is

 a) Phenol b) Terbein

 c) Ferumine d) Limone

 3 Karimunda is a variety of

 a) Ginger b) Black Pepper

 c) Cardemom d) Cumin

1. Choose the correct option for the characteristic of growth.

 a) It is an irreversible permanent increase in size of an organ or its parts or

even of an individual cell

 b)  It is accompanied by metabolic processes

 c) It occurs at the expense of energy

 d)  All of the above

2. Plant growth is unique because

 a) Plants bear the capacity for unlimited growth

 b)  Plants bear the capacity for limited growth

 c) Plants have diffused growth that differs from animals

 d)  None of the above  

1 Sechium eduleis the botanical name of

 a) Chekurmanis b) Basella

 c) Chow-Chow d) Water Leaf

 2 Cylon Spinach is also known as

 a) Chayote b) Malabar Spinach

 c) Indian Spinach d) Water Leaf

 3 Botanical name of Leek is

 a) Allium porum b) Allium sativum

 c) Allium cepa d) None of thes

1. Which type of vegetable is often grown in shade net house?

a) Tomato

c) Radish

b) Lettuce

 d) Cucumber

2. What is the primary advantage of greenhouse cultivation for vegetable production?

a) Increased exposure to natural elements

 b) Protection from pests and diseases

 c) Lower cost of production

 d) Reduced need for irrigation

1. Who is often referred to as the father of organic farming?

a) J.I. Rodale

c) Rudolf Steiner

b) Sir Albert Howard

 d) Rachel Carson

2. Which organization is responsible for setting and regulating organic farming standards in the United States?

a) United Nations (UN)

 b) World Health Organization (WHO)

 c) United States Department of Agriculture (USDa)

 d) Environmental Protection Agency (EPA)

1 What is the isolation distance for raising foundation seed in bottle gourd? 

 a) 800 m b) 700 m

 c) 600 m d) 500 m

 2 Roguing of off-type plants in bottle gourd seed production should be done at how many stages?

 a) Three b) Four

 c) Two d) Five

 3 Where are bottle gourd seeds stored after extraction?

 a) Open containers b) Shade

 c) Air tight containers d) Open

1. Quantitative characters are governed by

a) Monogene

c) Recessive gene

b) Bi-gene

 d) Polygene

2. Monohybrids are derived by hybridizing two individuals which differ for

a) Single-character

c) Quadruple character

b) Double character

 d) Multiple character

1 Chromosome number of garden pea is 

 a) 2n=2x=14 a) 2n=2x=18

 c) 2n=2x=20 b) 2n=2x=22

2 Origin of French Bean  

 a) South America b) South Mexica

 c) Africa d) Europe

3 Pea is the  

 a) Cross-pollinated b) Often-cross pollinated

 c) Self-pollinated d) None of the above  

1 The best age for transplanting of brinjal seedlings is: 

 a) 4-5 weeksold b) 1-2 weeksold

 c) 8-9 weeksold d) 10-12 weeksold

2 The recommended seed rate of tomato is: 

 a) 100-200g/ha   b) 1-1.2 kg/ha 

 c) 500-600g/ha   d) 33-4 kg/ha 

3 The best time for sowing tomato is: 

 a) September to October b) Mid-March to April 

 c )  Mid-December to January d) August to September  

1. The soils best suited for leafy vegetables are:

a) Clayey soils

c) Sandy soils

b) Well drained loamy soils

 d) Any type of soil 

2. How long does itgenerally take for leafy vegetables to grow?

a) 35-50 days after sowing

 b) 100-120 days after sowing  

c) 90-95 days after sowing

 d) 50-60 days after sowing   

1 What is the best time to sow onion seeds in Northern Hilly regions?

 a) January to February b)  March to April

 c) May to June  d) September to November

 2 Which type of soil is best for onion cultivation?

 a) Sandy loam    b)  Clay loam

 c) Alluvial soil  d) Both a and b

 3 What should be the pH range for onion cultivation?

 a) 4.4-5.0    b)  5.5-6.5

 c) 6.0-7.5    d)  6.5-7.5

1. What is the main negative impact of physiological disorders on root crops?

a) Deterioration of quality and visual characteristics

 b) Nutritional imbalance

 c) Decrease in yield

 d) None of these

2. Forking is a common physiological disorder of which root crop?

a) Radish

c) Beetroot

b) Carrot

 d) Turnip

1 Which soil is most suitable for bottle gourd cultivation?

 a) Sandy loam soils. b) Clayey soil

 c) Clayey loam soil d) Silt loam soil

 2 The ideal pHof soil for growing bottle gourdis?

 a) 4-5 b) 8-9

 c) 3-4 d) 6-7

 3 What is the desirable soil temperature for good bottle gourd growth?

 a) 35-40°C b) 10-15°C

 c) 18°-22°C d) 40-45°C

1 Brassica oleracea L. var. botrytis is the botanical name of

 a) Cabbage c) Cauliflower

 b) Knol-Khol d) None of these

 2 Cauliflower was introduced in India in 1822 by ________ from Garden, London.

 a) Dr. Jemson b) Dr. Kalloo

 c) Herbalist Dodens d) None of these