University of Agricultural Sciences, Raichur
College of Agriculture, Raichur
Department of Genetics and Plant Breeding
Qualifying written examination
Course title : Advances in breeding of Major field crops GPB 608 (2+1)
Date : 09-09-2020 Max. Marks 45
I. Write down the centre of origin of the following crops along with chromosome number 10 x 1.0 = 10
1. Pigeonpea 2. Wheat 3. Sorghum 4. Chickpea 5. sunflower
6. Sugarcane 7. Cotton 8. Groundnut 9. Tobacco 10. Mustard
II. Write down the genome size of the following crops 5x 0.5 = 2.5
1. Rice 2. Sorghum 3. Sunflower 4. Groundnut 5. Pigeonpea
III. Write the institutes which works on the following crops 5 x 0.5 = 2.5
1. Soybean 2. Maize 3. Chilli 4. Bajra 5. Tobacco
IV. Answer the questions in brief (Any four) 2.5 x 4 = 10
1. Explain in brief the noblisation of Indian sugarcane and species characteristics / differences.
2. Explain heterosis breeding.
3. Explain in brief the evolution of Gossypium hirsutum and Gossypium barbedense.
4. Explain heterosis breeding in Rice.
5. Explain breeding objectives in tobacco.
V. Explain the following questions in detail (Any four) 5.0 x 4 = 20
1. What is haploid and Double haploids. Explain production of haploids and double haploids in bried and its role in plant breeding.
2. Explain Genomic selection in crop improvement.
3. What is prebreeding and Explain role of prebreeding in crop improvement with suitable examples.
4. Write down the breeding objectives and breeding methods in sunflower and Explain in detail the Pustovoit method of variety development in sunflower.
5. What is biofortification? Explain in detail with respect to sorghum, maize and bajra.
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