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Crop Breeding I (Kharif Crops) – Chapter List
- Rice: Origin, Evolution and Genetic Constitution
- Rice: Breeding Objectives and Breeding Methods
- Rice: Resistance Breeding and Molecular Approaches
- Aerobic Rice and Drought-Resistant Rice
- Maize: Origin, Evolution and Genetics
- Maize: Breeding Objectives and Breeding Approaches
- Maize: Stress Resistance, MAS and Improved Maize
- Quality Protein Maize and Bt Maize
- Small Millets: Evolution, Diversity and Genetic Resources
- Small Millets: Breeding and Improvement
- Pigeonpea: Origin, Evolution and Genetics
- Pigeonpea: Breeding Approaches and Stress Resistance
- Pigeonpea Hybrid Breeding and Hybrid Technology
- Groundnut: Origin, Evolution and Genetic Constitution
- Groundnut: Breeding and Improvement
- Urdbean, Mungbean and Cowpea: Genetics and Genetic Resources
- Urdbean, Mungbean and Cowpea: Breeding and Improvement
- Interspecific Hybridization in Pulse Crops
- Soybean: Origin, Evolution and Genetics
- Soybean: Breeding and Stress Resistance
- Castor and Sesame: Origin, Evolution and Genetics
- Castor and Sesame: Breeding and Improvement
- Hybrid Breeding in Castor
- Cotton: Origin, Evolution and Genetic Constitution
- Cotton: Breeding Objectives and Breeding Approaches
- Cotton Hybrid Breeding, Bt Cotton and Seed Production
- Jute: Origin, Evolution and Genetic Constitution
- Jute: Breeding and Improvement
- Sugarcane: Evolution, Diversity and Cytogenetics
- Sugarcane: Breeding Objectives and Improvement
- Forage Crops: Evolution, Diversity and Genetics
- Forage Crop Breeding and Improvement
- Seed Spices: Origin, Evolution and Genetic Resources
- Seed Spices: Breeding and Improvement
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Syllabus
Content: Rice: Origin, evolution, mode of reproduction, chromosome number; Genetics – cytogenetics and genome relationship; Breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc.; Breeding approaches, introgression of alien gene(s) (if required), biotic and abiotic stress resistance, heterosis breeding, released varieties, examples of MAS used for improvement, Aerobic rice, its implications and drought resistance breeding. Maize: Origin, evolution, mode of reproduction, chromosome number; Genetics – cytogenetics and genome relationship; Breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc.; Breeding approaches, introgression of alien gene(s) (if required), biotic and abiotic stress resistance, heterosis breeding, releasedvarieties, examples of MAS used for improvement- QPM and Bt maize – strategies and implications. Small millets: Evolution and distribution of species and forms - wild relatives and germplasm; Cytogenetics and genome relationship - breeding objectives yield, quality characters, biotic and abiotic stress resistance, etc. Pigeon pea: evolution, mode of reproduction, chromosome number; Genetics – cytogenetics and genome relationship; Breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc.; Breeding approaches, introgression of alien gene(s) (if required), biotic and abiotic stress resistance, heterosis breeding, released varieties, examples of MAS used for improvement - Hybrid technology; maintenance of male sterile, fertile and restorer lines, progress made at National and International institutes. Groundnut: Origin, evolution mode of reproduction, chromosome number; Genetics – cytogenetics and genome relationship, breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc.; Breeding approaches, introgression of alien gene(s) (if required), biotic and abiotic stress resistance, released varieties, examples of MAS used for improvement. Other pulses: Urdbean, mungbean, cowpea,: Origin, evolution, mode of reproduction, chromosome number; Genetics – cytogenetics and genome relationship, breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc.; Breeding approaches, introgression of alien gene(s) (if required), released varieties, examples of MAS used for improvement. Interspecific crosses attempted and its implications, reasons for failure, ways of overcoming them. Soybean: Origin, evolution, mode of reproduction, chromosome number; Genetics – cytogenetics and genome relationship; Breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc.; Breeding approaches, introgression of alien gene(s) (if required), biotic and abiotic stress resistance, heterosis breeding, released varieties, examples of MAS used for improvement. Castor and Sesame: Origin, evolution mode of reproduction, chromosome number; Genetics –cytogenetics and genome relationship; Breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc. Breeding approaches, introgression of alien gene(s) (if required), released varieties, examples of MAS used for improvement; Hybrid breeding in castor – opportunities, constraints and achievements. Cotton: Origin, evolution, mode of reproduction, chromosome number; Genetics – cytogenetics and genome relationship; Breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc.; Breeding approaches, introgression of alien gene(s) (if required), biotic and abiotic stress resistance, heterosis breeding, released varieties, examples of MAS used for improvement, Development and maintenance of male sterile lines – Hybrid development and seed production – Scenario of Bt cottons, evaluation procedures for Bt cotton. Jute: Origin, evolution, mode of reproduction, chromosome number; Genetics – cytogenetics and genome relationship; Breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc.; Breeding approaches, introgression of alien gene(s) (if required), biotic and abiotic stress resistance, heterosis breeding, released varieties, examples of MAS used for improvement. Sugarcane: Evolution and distribution of species and forms, wild relatives and germplasm; Cytogenetics and genome relationship – Breeding objectives- yield, quality characters, biotic and abiotic stress resistance, etc. Forage crops: Evolution and distribution of species and forms – Wild relatives and germplasm; Cytogenetics and genome relationship; Breeding objectives- yield, quality characters and palatability studies; Biotic and abiotic stress resistance, etc. Seed spices: Origin, evolution, mode of reproduction, chromosome number; Genetics – cytogenetics and genome relationship; Breeding objectives: yield, quality characters, biotic and abiotic stress resistance, etc.; Breeding approaches, introgression of alien gene(s) (if required), biotic and abiotic stress resistance, heterosis breeding, released varieties, examples of MAS used for improvement; Achievements of important spice crops. Practical: Floral biology, emasculation, pollination techniques in rice, maize, pigeon pea, soybean, sesame, cotton; Study of range of variation for yield and yield components; Study of segregating populations in cereal, pulses and oilseed crops; Learning on the crosses between different species; attempting crosses between black gram and green gram; Evaluating the germplasm of cotton for yield, quality and resistance parameters, learning the procedures on development of Bt cotton; Visit to Cotton Technology Laboratory and Spinning Mills; Learning on the Standard Evaluation System (SES) and descriptors; Use of software for database management and retrieval; Practical learning on the cultivation of fodder crop species on sewage water, analysing them for yield components and palatability; Laboratory analysis of forage crops for crude protein, digestibility percent and other quality attributes; Visit to animal feed producing factories; Learning the practice of value addition; Visiting the animal husbandry unit and learning the animal experiments related with palatability and digestibility of fodder.Frequently Asked Questions (FAQs) – Crop Breeding I (Kharif Crops)
1. What is Crop Breeding I (Kharif Crops)?
Crop Breeding I (Kharif Crops) is a subject that covers the origin, evolution, genetics, breeding methods, hybrid development and improvement of important kharif crops such as rice, maize, pigeonpea, groundnut, soybean, cotton and sugarcane.
2. Which crops are covered in Crop Breeding I (Kharif Crops)?
The subject covers rice, maize, small millets, pigeonpea, groundnut, urdbean, mungbean, cowpea, soybean, castor, sesame, cotton, jute, sugarcane, forage crops and seed spices.
3. How many chapters are included in Crop Breeding I (Kharif Crops)?
The study material is divided into 34 chapters covering crop-specific genetics, genetic resources, breeding methods, hybrid technology and crop improvement.
4. What is the importance of crop breeding?
Crop breeding improves yield, quality, maturity, disease resistance, insect resistance and tolerance to environmental stresses, helping develop varieties suited to farmers' needs.
5. What is the difference between crop improvement and crop breeding?
Crop improvement is the broader process of enhancing crop performance through breeding and other approaches. Crop breeding involves developing improved varieties or hybrids by selecting and combining desirable heritable traits.
6. What is the origin of cultivated rice?
Asian cultivated rice, Oryza sativa, was domesticated in Asia. China is a major centre of early domestication, while the complete history of rice domestication is complex.
7. What is the chromosome number of rice?
Cultivated Asian rice (Oryza sativa) has 2n = 24 chromosomes and the AA genome.
8. What are the major breeding methods used in kharif crops?
Major methods include introduction, selection, hybridization, mutation breeding, backcross breeding, heterosis breeding and molecular breeding.
9. What is heterosis in crop breeding?
Heterosis, or hybrid vigour, is the superior performance of an F1 hybrid over its parents for one or more traits, such as yield, growth or stress tolerance.
10. What is hybrid seed production?
Hybrid seed production involves crossing selected parental lines under controlled conditions to obtain genetically defined F1 seeds that express the desired combination of traits.
11. What is cytoplasmic male sterility (CMS)?
CMS is a maternally inherited condition in which a plant cannot produce functional pollen because of factors associated with its cytoplasm. It is widely used to facilitate hybrid seed production in suitable crops.
12. What is marker-assisted selection (MAS)?
Marker-assisted selection uses DNA markers linked to desirable genes or quantitative trait loci to help breeders select plants carrying useful genetic traits.
13. What is genetic diversity in crop plants?
Genetic diversity refers to heritable differences among individuals, varieties or populations. It provides the basic material for developing improved crop varieties.
14. What are genetic resources in crop breeding?
Genetic resources include landraces, cultivated varieties, wild relatives, breeding lines and other plant materials that contain useful genes for crop improvement.
15. What is interspecific hybridization?
Interspecific hybridization is the crossing of plants belonging to different species. It can help transfer useful traits, such as disease resistance or stress tolerance, from related wild species into cultivated crops.
16. What is the importance of Bt cotton?
Bt cotton contains insecticidal proteins encoded by genes derived from Bacillus thuringiensis. These proteins provide protection against specific susceptible insect pests, particularly certain bollworms.
17. What are the major objectives of cotton breeding?
Cotton breeding aims to improve seed cotton yield, fibre length, fibre strength, fibre fineness, maturity, resistance to pests and diseases, and tolerance to environmental stresses.
18. Why is hybrid breeding important in maize?
Hybrid breeding exploits heterosis to develop maize hybrids with improved yield potential, uniformity and, where targeted, better resistance to diseases and environmental stresses.
19. How does molecular breeding help crop improvement?
Molecular breeding uses DNA markers and genomic information to support genetic diversity analysis, gene identification and selection for desirable traits. It can make selection more efficient when reliable markers are available.
20. Who can benefit from Crop Breeding I (Kharif Crops) notes?
These notes can support B.Sc. Agriculture and M.Sc. Genetics and Plant Breeding students, as well as candidates preparing for ICAR-related examinations, ASRB NET and other agricultural competitive examinations. Students should also consult the latest official syllabus and recommended textbooks.
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Last Updated: August 2026
