HORT 111 Printed Notes
Fundamentals of Horticulture
Asst. Prof. Phuke G.B.SDMVM College of Agriculture, Georai Tanda, Paithan road, Auranagabad, Maharashtra-431001.
Chapter 1: Importance and Scope of Horticulture
Definition:Horticulture comes from Latin words Hortus (enclosure, garden) and cultura (cultivation). It's the science and art of growing fruits, vegetables, flowers, and ornamental plants.
Cultivation Environment: Initially, horticulture referred to the cultivation of garden plants within protected enclosures.
Branches of Horticulture:Horticulture covers a wide range of crops classified into various branches:
Pomology: Cultivation of fruit crops.
Olericulture: Cultivation of vegetable crops.
Floriculture: Cultivation of flower crops.
Plantation Crops, Spices, Condiments:
Plantation Crops: Large-scale crops grown uniformly under central management (e.g., tea, coffee, coconut).
Spices: Dried vegetable substances for seasoning (e.g., black pepper, cinnamon).
Condiments: Plant products that add taste (e.g., coriander, cumin).
Preservation of Fruits and Vegetables: Techniques for preserving these crops for out-of-season use (e.g., jams, pickles).
Medicinal and Aromatic Plants: Plants used for their medicinal properties or to produce essential oils (e.g., Vinca, lemon grass).
Ornamental Gardening: Growing plants for aesthetic purposes (e.g., trees, shrubs, indoor plants).
Landscape Gardening: Planning and planting to create visually appealing outdoor spaces.
Nursery Management: Study of plant production in nurseries.
Importance of Horticulture Crops: Key contributions include:
Contribution to national income and foreign exchange through exports.
High productivity in comparison to cereals and pulses (e.g., mango yields 18-19 t/ha).
Nutritional benefits as protective foods (vitamins and minerals).
Continuous income generation from annual and perennial vegetable crops.
Utilization of barren and undulating lands for crops unsuitable for agronomic farming.
Reduced recurring expenditures on crop planting each year (especially in fruits).
Industrial applications (e.g., coconut in coir industry).
Cost savings through kitchen gardens.
Environmental benefits, including pollution reduction and amelioration of soil erosion.
Fodder source during famine.
Social aspects such as use in religious functions and enhancing quality of life.
Features of Horticulture
High perishability and requirement of intensive care due to high production value.
Labor intensiveness requires skilled operations like propagation and pruning.
Rich sources of essential nutrients promote healthier diets, particularly in vegetarian populations.
Scope of Horticulture in India
Diverse Cropping Potential: India, with its varied climate and soil types, cultivates numerous horticultural crops, making it significant in national agriculture.
Production Statistics: 2.1 million hectares are dedicated to horticultural crops, producing a variety of fruits like mango, banana, and spices.
Employment Generation: Intensive cultivation creates job opportunities in rural areas.
Key Regions: Significant production areas include Maharashtra, Karnataka, and Andhra Pradesh for fruits, as well as West Bengal for flowers and spices in states like Kerala and Andhra Pradesh.
Classification of Horticultural Crops
Dynamic Process: Classification helps in easy cultural operations, breeding, pest control, and suitability to different climates.
Classifications Include:
Duration of Life: Annuals (e.g., tomato), Biennials (e.g., onion), Perennials (e.g., mango).
Climatic Requirements: Temperate, Sub-tropical, and Tropical horticultural crops.
Growth Habit: Trees, shrubs, and climbers.
Plant Parts for Consumption: Fruits, vegetables, and tubers.
Leaf Shedding: Deciduous vs. Evergreen classifications.
Botanical Classification: Monocotyledonous and dicotyledonous plants categorized by families.
Respiration Rate: Climacteric and Non-climacteric fruits based on post-harvest respiration trends.
Photoperiodic Responses: Long-day plants, short-day plants, and day neutral plants.
Chapter 3: Soil and Climatic Requirements for Horticulture Crops
Essential Elements: Understanding soil properties and climate is crucial for enhancing plant growth.
Soil Requirements:
Physical Conditions: Well-drained, aerated soil is paramount; avoidance of waterlogging is essential.
Chemical Properties: Soil fertility is determined by the nutrient content and pH level.
Ideal Conditions: Fruits thrive in well-drained soils with adequate moisture retention and nutrient supply.
Climate Requirements:
Temperature: Each horticultural crop has specific temperature ranges essential for growth.
Humidity & Rainfall: These influence growth, flowering, and fruiting cycles; appropriate methods of irrigation must support crop health where natural rainfall is insufficient.
Wind & Light Conditions: High winds can damage crops; light exposure ensures healthy photosynthesis and fruit quality.
Chapter 4: Plant Propagation Methods
Vegetative vs. Sexual Propagation: Emphasizes the need for vegetative propagation techniques for horticultural efficiency, including cuttings, layering, and grafting.
Key Propagation Techniques:
Asexual Propagation: Ensures genetic uniformity and facilitates quicker establishment of reliable crops. Includes methods such as cuttings, layering, and specialised structures (e.g., suckers and bulbs).
Micro Propagation: Enables rapid multiplication of disease-free plants through tissue culture (in vitro).
Chapter 5: Principles of Orchard Establishment
Orchard Planning Parameters: Essential to assess environmental variables such as soil type, climate, irrigation availability, and market access prior to establishment.
Important Considerations:
Selecting suitable site and soil conditions.
Provision of irrigation and drainage systems.
Adoption of effective planting layouts to maximize space while fostering growth.
Utilization of windbreaks where necessary to protect against environmental factors.
Regular tree maintenance practices (training, pruning, etc.) to enhance productivity and longevity.
Chapter 7: Pollination, Pollinators, and Pollinizers
Pollination Types: Includes self-pollination and cross-pollination aided by biotic agents like insects and abiotic agents like wind.
Pollinator Mechanisms:
Abiotic Pollinators: Wind or gravity facilitate pollen transfer in the absence of living organisms.
Biotic Agents: Insects and animals play a crucial role in the fertilization of many flowering plants; understanding their behaviour enhances crop yields.
Pollen Management:
Importance of proper selection of pollinators to ensure successful fertilization in largely self-incompatible species.
Chapter 9: Importance of Spices, Plantation, Medicinal, and Aromatic Crops
Medicinal Plants: A rich resource for pharmaceuticals with significant economic value, supported by ongoing board initiatives for cultivation enhancement.
Plantation and Spice Crops: Contributes both economic value in domestic markets and substantial export potential, enriched by high nutritional value.
Chapter 10: Use of Growth Regulators in Fruit Production
Growth Regulators: Aid in enhancing and controlling various growth processes in plants, valuable for developing commercially viable crops.
Types of Growth Regulators: Includes Auxins, Gibberellins, and Cytokinins with distinct roles in enhancing root development, promoting flowering, and controlling growth.
Chapter 12: Method of Fertilizer Application in Fruit Crops
Application Strategies: Varied methods including incorporation into soil, green manure application, and foliar sprays tailored to meet specific nutrient requirements throughout crop growth stages.