Unit1 - Subjective Questions
HRT108 • Practice Questions with Detailed Answers
Define Horticulture and explain the derivation of the term. Briefly list the major branches of horticulture.
Definition:
Horticulture is a branch of agriculture concerned with the cultivation, production, utilization, and improvement of fruits, vegetables, ornamental plants, spices, plantation crops, and medicinal plants.
Derivation:
The term 'Horticulture' is derived from two Latin words:
- : Meaning 'Garden'.
- : Meaning 'To cultivate'.
Therefore, it literally translates to 'garden cultivation'. However, in modern terms, it extends far beyond the garden scale to field production.
Major Branches:
- Pomology: Cultivation of fruit crops.
- Olericulture: Cultivation of vegetable crops.
- Floriculture: Cultivation of flower crops and ornamental plants.
- Plantation Crops: Crops cultivated on a large scale (e.g., Tea, Coffee).
- Spices and Condiments: Flavoring agents (e.g., Black pepper, Cardamom).
- Post-Harvest Technology: Processing and preservation of horticultural produce.
Discuss the nutritional importance of fruits and vegetables in the human diet. Why are they called 'Protective Foods'?
Fruits and vegetables are essential components of a balanced diet and are termed 'Protective Foods' because they protect the body against various diseases and deficiencies due to their high vitamin and mineral content.
Nutritional Importance:
- Vitamins:
- Vitamin A (): Essential for vision and skin. Rich sources: Mango, Papaya, Carrot.
- Vitamin C (Ascorbic Acid): Prevents scurvy. Rich sources: Barbados cherry, Aonla, Guava, Citrus.
- Vitamin B Complex: Important for metabolism. Sources: Banana, Apple, Leafy vegetables.
- Minerals:
- Calcium (): Required for bone health. Sources: Litchi, Curry leaf.
- Iron (): Essential for hemoglobin. Sources: Karonda, Spinach, Date palm.
- Phosphorus (): Essential for cell energy. Sources: Cashew nut.
- Fiber: Provides roughage to aid digestion and prevent constipation.
- Energy: Fruits like Avocado and nuts are high-energy sources.
ICMR Recommendation: The Indian Council of Medical Research recommends a daily consumption of at least 300g of vegetables and 120g of fruits per capita.
Differentiate between Pomology and Olericulture with suitable examples.
Pomology and Olericulture are two primary branches of horticulture.
| Feature | Pomology | Olericulture |
|---|---|---|
| Definition | Derived from Latin word (fruit) and Greek word (study). It deals with fruit production. | Derived from Latin word (pot herb) and (cultivation). It deals with vegetable production. |
| Nature of Plant | Mostly perennial trees or shrubs (live for many years). | Mostly annuals or biennials (complete life cycle in 1-2 seasons). |
| Propagation | Mostly propagated vegetatively (asexual). | Mostly propagated by seeds (sexual). |
| Management | Requires pruning, training, and long-term orchard management. | Intensive tillage, frequent irrigation, and short-duration management. |
| Examples | Mango, Apple, Banana, Guava, Citrus. | Tomato, Potato, Brinjal, Cabbage, Spinach. |
Explain the scope of horticulture in India with respect to employment generation and industrial raw materials.
The scope of horticulture in India is vast due to diverse agro-climatic conditions.
1. Employment Generation:
- Horticulture is a highly labor-intensive activity.
- It generates employment throughout the year, unlike cereal crops which are seasonal.
- Activities include nursery raising, grafting, pruning, harvesting, grading, and packaging.
- Ratio: Horticultural crops require roughly $860$ man-days per hectare per year compared to $143$ man-days for cereal crops.
2. Raw Material for Agro-Industries:
- Fruit Preservation: Jams, jellies, squashes (e.g., Kissan, Mapro).
- Pharmaceuticals: Medicinal plants used in Ayurveda and modern medicine (e.g., Ashwagandha, Aloe vera).
- Perfumery: Essential oils extracted from Jasmine, Rose, and Geranium.
- Textile/Coir: Coconut coir industry.
- Rubber & Oil: Rubber plantations and Palm oil processing units rely entirely on horticultural produce.
Analyze the current status of Area and Production of horticultural crops in India. What is India's global ranking?
Current Status:
India has witnessed a 'Golden Revolution' in horticulture production. The sector has grown significantly, often outpacing the growth of food grain production.
- Total Production: India's total horticulture production is estimated to be over $340$ Million Tonnes.
- Total Area: The area under cultivation is approximately $28$ Million Hectares.
- Productivity: The productivity is higher compared to field crops, providing better returns per unit area.
Global Ranking:
- Overall: India is the largest producer of fruits and vegetables in the world, after China.
- Specific Crops:
- Rank: Bananas (largest producer), Mangoes, Papayas, Limes/Lemons, Okra, Ginger.
- Rank: Potatoes, Onions, Cauliflowers, Brinjals, Cabbages.
This robust production status highlights the importance of horticulture in the Indian economy.
Describe the economic importance of horticulture compared to agronomic field crops.
Horticulture plays a vital role in the economic stability of farmers and the nation.
1. High Returns per Unit Area:
- Horticultural crops generally produce higher biomass and economic yield than field crops.
- Example: The yield of Banana or Papaya ranges from tonnes/ha, whereas wheat or rice yields tonnes/ha.
2. Efficient Land Utilization:
- Orchards allow for inter-cropping (growing short-duration crops between trees) and multi-tier cropping (using vertical space), maximizing land utility.
- Utilization of waste and undulating lands (e.g., Cashew, Ber, Custard apple grow well in poor soils).
3. High Export Value:
- Horticultural produce commands higher prices in international markets compared to cereals.
- Products like Spices, Cashew nuts, and processed fruits earn significant foreign exchange.
4. Continuous Income:
- Unlike seasonal field crops that provide income only once or twice a year, diverse horticultural systems can provide a flow of income throughout the year.
Identify and describe the major Fruit Production Zones in India based on climatic conditions.
India is divided into distinct fruit production zones based on climate:
1. Temperate Fruit Zone:
- Climate: Cold winters, snowfall, and mild summers.
- Region: Jammu & Kashmir, Himachal Pradesh, Uttarakhand, and parts of Arunachal Pradesh.
- Major Crops: Apple, Pear, Peach, Plum, Walnut, Apricot, Almond.
2. Tropical Fruit Zone:
- Climate: Hot and humid, no distinct winter, ample rainfall.
- Region: Southern India (Kerala, Tamil Nadu, Karnataka), Western Ghats, North-East India.
- Major Crops: Banana, Coconut, Pineapple, Cashew, Papaya, Jackfruit.
3. Sub-Tropical Fruit Zone:
- Climate: Hot summers, distinct cool winters, moderate rainfall.
- Region: Gangetic plains (UP, Bihar, Punjab, Haryana), parts of Maharashtra and MP.
- Major Crops: Mango, Guava, Citrus, Litchi, Grape, Pomegranate.
4. Arid and Semi-Arid Zone:
- Climate: High temperature, low rainfall, dry conditions.
- Region: Rajasthan, Gujarat, parts of Haryana.
- Major Crops: Ber, Aonla, Date Palm, Custard Apple, Fig.
Discuss the major challenges faced in the export of horticultural products from India.
Despite high production, India's share in the global horticultural trade is low () due to several challenges:
1. Perishability:
- Fruits and vegetables have high moisture content and a short shelf life.
- Lack of adequate cold chain infrastructure (refrigerated transport and storage) leads to spoilage before reaching ports.
2. Quality and Standards:
- Strict Sanitary and Phytosanitary (SPS) measures by importing countries (e.g., EU, USA).
- Issues with pesticide residues exceeding Maximum Residue Limits (MRLs).
- Lack of uniform grading and packaging standards.
3. Low Processing Levels:
- Only about of India's total produce is processed, compared to in countries like Malaysia. This limits the export of value-added products.
4. Logistics and Cost:
- High air freight charges reduce competitiveness.
- Poor road connectivity from farm gates to export hubs.
5. Market Intelligence:
- Lack of awareness among farmers regarding the specific varieties preferred in international markets.
What is the role of APEDA in the export of horticultural crops?
APEDA stands for the Agricultural and Processed Food Products Export Development Authority.
Key Roles:
- Promotion and Development: It is responsible for the export promotion and development of scheduled products, including fresh fruits, vegetables, floriculture, and processed foods.
- Standards and Specifications: It fixes standards and specifications for scheduled products for the purpose of exports.
- Registration: It registers exporters of scheduled products.
- Infrastructure: It assists in improving packaging, marketing, and the development of industries relating to scheduled products.
- Financial Assistance: It provides subsidies and financial aid for transport, packaging development, and quality control labs.
- Market Intelligence: It collects and disseminates statistical data and market information to exporters.
Define Floriculture. Explain its scope as an industry in India.
Definition:
Floriculture is a branch of horticulture that deals with the cultivation of flowering and ornamental plants for gardens and for floristry, comprising the floral industry.
Scope as an Industry:
- Cut Flowers: High demand for Rose, Carnation, Gerbera, and Orchid in domestic and international markets for decoration and bouquets.
- Loose Flowers: Huge domestic market for Jasmine, Marigold, and Crossandra for religious offerings, garlands, and festivals.
- Essential Oils: Extraction of perfumes from Rose (Rose oil), Jasmine, and Tuberose.
- Dry Flowers: Export potential for dried flowers and plant parts (Potpourri).
- Nursery Business: Sale of potted plants, seedlings, and bulbs.
- Seed Production: Hybrid seed production of annual flowers is a lucrative business.
- Landscape Gardening: Growing demand for professional landscaping in corporate offices, hotels, and urban housing.
Write a short note on the major Vegetable Production Zones in India.
Vegetable production in India is distributed across various climatic zones, allowing for year-round availability.
1. Temperate Zone (Himalayan Region):
- Crops: Cole crops (Cabbage, Cauliflower), Root crops (Radish, Carrot), and exotic vegetables like Broccoli and Asparagus.
- Significance: Supplies off-season vegetables to the plains during summer.
2. Tropical and Sub-Tropical Zone (Plains and Peninsula):
- North Indian Plains: Major production of Potato, Onion, Tomato, Brinjal, and Cucurbits (Melons, Gourds). Distinct winter allows for cool-season crops.
- South and West India: Ideal for tropical vegetables like Tapioca, Sweet Potato, Yam, Elephant Foot Yam, and solanaceous vegetables year-round.
3. Onion and Garlic Belts:
- Maharashtra (Nashik, Pune) and Gujarat are the hubs for Onion and Garlic production.
4. Potato Belts:
- Uttar Pradesh, West Bengal, and Punjab account for the majority of potato production.
Distinguish between Plantation Crops and Spices.
| Feature | Plantation Crops | Spices |
|---|---|---|
| Definition | Crops cultivated on an extensive scale in a large contiguous area, owned and managed by an individual or a company. | Vegetable products or mixtures used for flavoring, seasoning, and imparting aroma to food. |
| Scale | Large scale (estate farming). | Small to medium scale (often in kitchen gardens or fields). |
| Processing | Processing is almost mandatory on the farm/estate itself (e.g., tea curing). | Processing (drying/curing) may or may not be done on the farm. |
| Economic Use | Mainly used as beverages or industrial raw materials. | Mainly used as food adjuncts for taste and preservation. |
| Examples | Tea, Coffee, Rubber, Coconut, Arecanut, Oil Palm. | Black Pepper, Cardamom, Turmeric, Cumin, Clove. |
What are the major horticultural items exported from India? List at least five.
India exports a wide variety of fresh and processed horticultural goods. The major items include:
- Fresh Fruits:
- Mango: Varieties like Alphonso and Kesar (Major markets: UAE, UK, USA).
- Grapes: High value export (Major markets: Europe).
- Banana: Increasing export volume.
- Fresh Vegetables:
- Onion: India is a leading exporter.
- Okra (Bhindi): High demand in Middle East and Europe.
- Spices:
- Chilli, Cumin, Turmeric: India is the 'Spice Bowl of the World'.
- Spice Oleoresins: High value extracts.
- Processed Products:
- Fruit Pulp/Concentrates: Mango pulp is a major export.
- Pickles and Chutneys.
- Floriculture:
- Cut Flowers: Roses.
- Dry Flowers: Significant share in export.
Explain the aesthetic and religious importance of horticulture in Indian culture.
Aesthetic Importance:
- Psychological Well-being: Plants and flowers provide mental peace and reduce stress. Bio-aesthetic planning is used in hospitals and sanitoriums.
- Landscaping: Beautification of homes, public parks, highways, and corporate buildings using lawns, ornamental trees, and hedges.
- Environment: Trees reduce pollution, noise, and soil erosion ( absorption).
Religious/Sacred Importance:
- Sacred Trees: Peepal () and Banyan are worshipped.
- Offerings: Coconut is essential for almost all Hindu rituals. Flowers like Marigold, Lotus, and Jasmine are indispensable for worship.
- Leaves: Mango leaves are used for decoration during festivals; Betel leaves are used in prayers and social ceremonies.
- Plants: Tulsi (Holy Basil) is grown in almost every household for its religious significance.
Define Landscape Gardening and Post-Harvest Technology.
1. Landscape Gardening:
- It is a branch of floriculture and an art of laying out grounds with ornamental plants, water bodies, paths, and structures to create a picturesque effect.
- It involves the planning and arrangement of natural elements to enhance the aesthetic appeal of an area (e.g., Mughal Gardens, Rock Gardens).
2. Post-Harvest Technology (PHT):
- It is a branch of horticulture that deals with the principles and practices of handling crops from the moment of harvest until they reach the consumer.
- Scope: It includes cleaning, grading, pre-cooling, packaging, storage, transportation, and processing (value addition) to reduce losses and extend shelf life.
List the leading states in India for the production of the following: Mango, Banana, Apple, Citrus, and Grapes.
Based on recent horticultural statistics, the leading states are:
- Mango: Uttar Pradesh (followed by Andhra Pradesh).
- Banana: Andhra Pradesh (followed by Maharashtra and Tamil Nadu).
- Apple: Jammu & Kashmir (followed by Himachal Pradesh).
- Citrus (Lime/Lemon/Sweet Orange/Mandarin): Maharashtra (famous for Nagpur Mandarin) and Andhra Pradesh.
- Grapes: Maharashtra (accounts for the vast majority of production).
What are the major imports of horticultural products in India?
While India is a major producer, it also imports certain horticultural commodities to meet domestic demand and processing needs.
Major Imports:
- Vegetable Oils: Massive import of Palm Oil (from Indonesia/Malaysia) and Sunflower oil.
- Dry Fruits and Nuts:
- Cashew nuts (Raw): Imported from African nations for processing and re-export.
- Almonds: Primarily from the USA (California).
- Dates: From Middle Eastern countries.
- Exotic Fruits: Apples (from USA, NZ, China to supplement off-season), Kiwi, and Dragon fruit.
- Cocoa: Beans and paste for the chocolate industry.
- Rubber: Natural rubber to bridge the gap between production and industrial demand.
Discuss the constraints related to low productivity in Indian horticulture.
Despite being the largest producer, India's productivity (yield per hectare) for many crops is lower than the world average.
Constraints:
- Quality of Planting Material: Non-availability of virus-free, high-yielding varieties and certified seeds/saplings.
- Old and Senile Orchards: Many mango, citrus, and cashew orchards are old ( years), resulting in declining yields.
- Irrigation: Heavy reliance on monsoon rain. Lack of adoption of precision irrigation (drip/sprinkler) in many regions.
- Canopy Management: Lack of scientific pruning and training leads to overcrowding and poor light penetration.
- Pest and Disease Management: Occurrences of fruit flies, wilts, and blights cause severe losses.
- Technology Transfer: The gap between research lab findings and farm-level adoption remains significant.
Explain the significance of Medicinal and Aromatic Plants (MAPs) as a branch of horticulture.
Medicinal Plants:
- Significance: India is known as the 'Botanical Garden of the World'. These plants provide raw materials for traditional systems of medicine (Ayurveda, Siddha, Unani) and modern allopathy.
- Examples: Aloe vera (skin care), Ashwagandha (stress relief), Opium Poppy (analgesics), Isabgol (laxative).
Aromatic Plants:
- Significance: These plants contain essential oils used in perfumes, cosmetics, soaps, and aromatherapy. They have high export potential.
- Examples: Lemongrass, Citronella, Mentha (Mint), Vetiver, Geranium.
Economic Value: MAPs often require less water and can grow in marginal soils, offering high value-to-volume ratio for farmers.
Calculate the scope of horticulture by comparing the energy production of Banana vs. Wheat per unit area.
To understand the scope in terms of food security, we compare the energy yield.
-
Wheat:
- Average yield: tonnes/ha.
- Calorific value: High per kg, but total biomass is lower.
-
Banana:
- Average yield: tonnes/ha (can go up to ).
- Even though the calories per gram might be lower than dry wheat, the total energy produced per hectare is significantly higher for Banana.
Analysis:
- Horticultural crops like Banana, Potato, and Sweet Potato produce much more edible biomass and calories per unit of land and time compared to cereals.
- This highlights the scope of horticulture in ensuring nutritional security for a growing population with limited arable land.