GPB - 515 (1+1) Maintenance Breeding and Concepts of Variety Release and Seed Production

UNIVERSITY OF AGRICULTURAL SCIENCES, RAICHUR
COLLEGE OF AGRICULTURE, RAICHUR
GPB - 515 (1+1) Maintenance Breeding and Concepts of Variety Release and Seed Production

Time: 2.00 hours
Final Exam
Max. Marks: 30

Q. I. Explain / Answer the followings (Any 10)
(10 × 3 = 30)

1. Explain certified hybrid rice seed production

2. Discuss the importance of seed borne diseases in seed production

3. Discuss flowering synchronization techniques in sorghum

4. How CMS and R-lines are different in rice

5. Differentiate between essentially derived variety (EDV) and Extant variety

6. How genetic purity is maintained in EGMS line of rice?

7. Explain the importance of PPV&FRA, 2001

8. Discuss how germplasm registration is different from plant variety release

9. Explain the floral biology and pollination mechanism in rice

10. Mention the field inspection stages and observations in rice seed production

11. Differentiate between varietal blend and pure line

12. Explain state variety release system in Karnataka

Best of luck