Strategies for Enhancement in Food Production – Class 12 Biology Notes | Full Chapter Summary
Chapter 9: Strategies for Enhancement in Food Production --- 🔹 Introduction This chapter focuses on improving quantity and quality of food through biological and technological methods. Major strategies: Plant breeding, Animal husbandry, Tissue culture, Genetic engineering --- 🔹 Animal Husbandry Management of farm animals for milk, meat, eggs. Includes: Dairy farming (milk production) Poultry farming (egg & meat) Fishery (aquaculture + pisiculture) Bee keeping (Apiculture) 📌 Diagram: Dairy farm setup / Poultry structure --- 🔹 Plant Breeding Purpose: Develop better quality, disease-resistant and high-yielding crops. Steps: 1. Collection of Variability 2. Evaluation and Selection 3. Hybridisation 4. Selection and Testing 5. Release of New Varieties --- 📌 Plant Breeding for Disease Resistance Conventional and molecular breeding. Resistant varieties: Wheat: HUW 206 Rice: Ratna, Laxmi --- 📌 Plant Breeding for Improved Nutrition Biofortification: Improving nutritional quality ...