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CROP IMPROVEMENT – I (KHARIF CROP)
Updated Chapter-wise List
- Introduction to Crop Improvement
- Plant Genetic Resources and Their Conservation
- Genetics of Qualitative and Quantitative Characters
- Breeding Systems and Basic Breeding Methods
- Rice Improvement
- Maize Improvement
- Sorghum Improvement
- Pearl Millet Improvement
- Minor and Other Kharif Cereal Crops Improvement
- Pigeonpea Improvement
- Greengram Improvement
- Blackgram Improvement
- Cowpea Improvement
- Other Kharif Pulse Crops Improvement
- Groundnut Improvement
- Sesame Improvement
- Sunflower Improvement
- Castor Improvement
- Cotton Improvement
- Jute Improvement
- Mesta and Other Fibre Crops Improvement
- Fodder Maize Improvement
- Fodder Sorghum Improvement
- Fodder Bajra (Pearl Millet) Improvement
- Tomato Improvement
- Brinjal Improvement
- Chilli and Capsicum Improvement
- Okra Improvement
- Cucumber Improvement
- Cucurbits Improvement
- Other Kharif Vegetable Crops Improvement
- Kharif Fruit Crop Improvement
- Kharif Flower and Ornamental Crop Improvement
HYBRID SEED PRODUCTION TECHNOLOGY
- Hybrid Seed Production Technology – Principles and Systems
- Maize Hybrid Seed Production Technology
- Rice Hybrid Seed Production Technology
- Sorghum Hybrid Seed Production Technology
- Pearl Millet Hybrid Seed Production Technology
- Pigeonpea Hybrid Seed Production Technology
- Hybrid Seed Production in Other Crops
ADVANCED CONCEPTS IN CROP IMPROVEMENT
- Ideotype Concept in Crop Improvement
- Climate-Resilient Crop Varieties for the Future
Total: 42 Chapters
Syllabus
Theory
Centres of origin, distribution of species, wild relatives in different cereals; pulses; oilseeds; fibres; fodders and cash crops; vegetable and other horticultural crops of kharif season; Plant genetic resources, its utilization and conservation, study of genetics of qualitative and quantitative characters; Important concepts of breeding self-pollinated, cross-pollinated and vegetatively propagated crops. Major breeding objectives and procedures including conventional and modern innovative approaches for development of hybrids and varieties for yield, adaptability, stability, abiotic and biotic stress tolerance and quality (physical, chemical, nutritional); Hybrid seed production technology in maize, rice, sorghum, pearl millet and pigeopea etc. Ideotype concept, climate resilient crop varieties for future
Frequently Asked Questions (FAQs) – Crop Improvement I
1. What is crop improvement?
Crop improvement is the process of developing better crop varieties with higher yield, improved quality, resistance to diseases and pests, and better tolerance to environmental stresses.
2. What are the main objectives of crop improvement?
The major objectives include high yield, improved quality, early maturity, disease resistance, insect resistance, stress tolerance, and wider adaptability.
3. What are plant genetic resources?
Plant genetic resources are the genetic materials of plants that are useful for crop improvement, including landraces, traditional varieties, improved varieties, breeding lines, and wild relatives.
4. Why is genetic variability important in crop improvement?
Genetic variability provides differences among plants. Plant breeders use this variation to select and develop improved crop varieties with desirable characters.
5. What is the difference between qualitative and quantitative characters?
Qualitative characters are generally controlled by one or a few genes and show distinct categories, while quantitative characters are controlled by many genes and show continuous variation.
6. What is plant breeding?
Plant breeding is the science and art of improving the genetic makeup of crop plants to develop superior varieties and hybrids.
7. What are the important methods used in crop improvement?
Important methods include introduction, selection, hybridization, pedigree breeding, backcross breeding, mutation breeding, and modern molecular breeding techniques.
8. What is hybridization?
Hybridization is the process of crossing two genetically different parents to combine desirable characters and produce improved progeny.
9. What is a hybrid?
A hybrid is the progeny produced by crossing two genetically different parents. The first generation is called the F₁ hybrid.
10. What is heterosis?
Heterosis, also called hybrid vigour, is the superior performance of an F₁ hybrid compared with its parents.
11. Why is hybrid seed production important?
Hybrid seed production helps exploit heterosis and can produce crops with higher yield, better vigour, greater uniformity, and improved adaptability.
12. What is male sterility?
Male sterility is the inability of a plant to produce functional pollen. It is widely used in hybrid seed production to prevent self-pollination.
13. What are A, B and R lines in hybrid seed production?
The A line is a male-sterile line, the B line is a maintainer line used to maintain male sterility, and the R line is a fertility restorer used to produce fertile F₁ hybrids.
14. What is detasseling in maize?
Detasseling is the removal of the tassel from female maize plants before pollen shedding to prevent self-pollination and ensure hybrid seed production.
15. What is isolation in hybrid seed production?
Isolation is the prevention of unwanted pollen contamination from other plants or varieties. It is essential for maintaining the genetic purity of hybrid seed.
16. What is rouging?
Rouging is the removal of off-type, undesirable, diseased, or contaminating plants from a seed production field to maintain genetic purity and seed quality.
17. What is flowering synchronization?
Flowering synchronization, also called nick synchronization, means proper matching of flowering and pollen shedding between male and female parental lines.
18. What is an ideotype?
An ideotype is an ideal plant type designed with a specific combination of desirable morphological and physiological characters for superior performance in a particular environment.
19. What are climate-resilient crop varieties?
Climate-resilient crop varieties are varieties developed to maintain better growth and yield under changing climatic conditions such as drought, heat, flooding, waterlogging, and salinity.
20. What is the future of crop improvement?
The future of crop improvement focuses on developing high-yielding, climate-resilient, resource-efficient, disease-resistant, and stress-tolerant varieties using conventional and modern breeding technologies.
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Last Updated: August 2026
