Chapter 11 of 15
Revision Notes
Enhancement of Food Production — Revision Notes
Maharashtra Board · Class 12 · Biology
Enhancement of Food Production revision notes for Maharashtra Board Class 12 Biology: 4 topics in quick points.
44 questions25 flashcards5 concepts
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Key Topics to Revise
1
Plant Breeding and Crop Improvement
- Plant breeding is the purposeful manipulation of plant heredity to create superior crop varieties with improved yield, quality, and resistance
- Green Revolution (1960s) involved developing high-yielding, semi-dwarf varieties of wheat and rice using scientific breeding techniques
- Hybridization involves crossing two genetically different parents to combine desirable traits from both
2
Tissue Culture and Micropropagation
- Tissue culture involves growing isolated plant cells, tissues, or organs in sterile nutrient medium under controlled conditions
- Based on totipotency principle - ability of plant cells to regenerate complete plants
- MS (Murashige and Skoog) medium contains minerals, carbohydrates, proteins, vitamins, growth hormones, and agar
3
Single Cell Protein (SCP) and Biofortification
- SCP refers to edible protein extracted from pure microbial cultures or dried cell biomass
- Microorganisms used: Fungi (Aspergillus niger), Yeast (Saccharomyces cerevisiae), Algae (Spirulina, Chlorella), Bacteria (Methylophilus methylotrophus)
- Grown on inexpensive substrates: agricultural waste, wood shavings, molasses, even human and animal waste
4
Animal Husbandry and Management
- Animal husbandry involves scientific breeding and management of livestock for maximum productivity
- Animal breeding types: Inbreeding (closely related individuals for 4-6 generations) and Outbreeding (unrelated individuals)
- Crossbreeding produces superior hybrids (e.g., Hisardale sheep from Bikaneri × Marino cross)
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Full NotesKey Concepts
Scientific manipulation of plant heredityProcess involving collection of variabilityIn vitro cultivation of plant cellsScientific management of livestock including cattleEdible protein extracted from microbial biomass
Frequently Asked Questions
What are the important topics in Enhancement of Food Production for Maharashtra Board Class 12 Biology?
Key topics in Enhancement of Food Production include Plant Breeding and Crop Improvement, Tissue Culture and Micropropagation, Single Cell Protein (SCP) and Biofortification, Animal Husbandry and Management. Study these first, then practise questions on each for the Maharashtra Board Class 12 board exam.
How should I revise Enhancement of Food Production for the Maharashtra Board Class 12 board exam?
Learn the core ideas first, then work through the 44 practice questions on Enhancement of Food Production. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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