DIVERGENCE STUDIES FOR YIELD AND GALL MIDGE TOLERANCE IN RICE (Oryza sativa L.)

B. SRINIVAS¹*, Y. CHANDRAMOHAN², S. THIPPESWAMY³, D. PADMAJA⁴, S. OMPRAKASH^5
1Rice Research Scheme, Regional Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Polasa, Jagtial, Telangana, 505 529
²Rice Research Scheme, Regional Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Polasa, Jagtial, Telangana, 505 529
³Rice Research Scheme, Regional Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Polasa, Jagtial, Telangana, 505 529
⁴Rice Research Scheme, Regional Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Polasa, Jagtial, Telangana, 505 529
⁵Rice Research Scheme, Regional Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Polasa, Jagtial, Telangana, 505 529
* Corresponding Author : srinu.bdd@gmail.com

Received : 21-04-2018     Accepted : 27-04-2018     Published : 30-04-2018
Volume : 10     Issue : 4       Pages : 409 - 411
Genetics 10.4 (2018):409-411
DOI : http://dx.doi.org/10.9735/0975-2862.10.4.409-411

Keywords : Rice, gall midge, genetic divergence
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to Rice Research Scheme, Regional Agricultural Research Station, Professor Jayashankar Telangana State Agricultural University, Polasa, Jagtial, Telangana, 505 529
Author Contribution : All author equally contributed

45 rice genotypes were evaluated at Regional Agricultural Research Station, Polasa, Jagtial, Telangana during Kharif, 2014 revealed presence of ample amount of variability among the genotypes studied. Clustering pattern revealed no correlation between grouping pattern of genotypes and their origin. Highest inter cluster distance was observed between cluster IV and VIII (17.59) followed by II and VIII (15.91), V and VIII (15.66) and I and VIII (15.05) and genotypes from these cluster could be used as parents for obtaining desirable segregants. Genotypes from clusters I, II and IV could yield early maturity genotypes and JGL 21800 and JGL 11470 are good source for developing gall midge resistant lines. Segregants with good head rice recovery could be possible by using genotypes from clusters III, IV and VI as parents. Effective bearing tillers per plant which is an important yield contributing character contributed maximum (27.2%) towards total divergence, hence present experiment material could be used to improve this trait in desirable direction.

1. Chatterji S.M., Kulshreshtha J.P., Rajamani S. and Prakash Rao P.S. (1976) Pest. Inform, 2, 33-36.
2. Bentur J.S., Pasalu I.C., Sharma N.P., Prasad Rao U. and Mishra B. (2003) Res. Paper Series, Directorate of Rice Research, 20.
3. IRRI (2002) Standard Evaluation System for Rice, International Rice Research Institute, Los Baños, Philippine.
4. Panse V.G. and Sukhathme P.V. (1985) Statistical methods for agricultural workers, Indian Council of Agricultural Research, New Delhi.
5. Mahalanobis P.C. (1936) Proceedings of the National Institute of Sciences of India, 2, 49–55.
6. Rao C.R.(1952) Advance Statistical Methods in Biometrical Research. John Wiley and Sons, New York.
7. Rajesh T., Paramasivam K. and Thirumeni S. (2010) Electronic Journal of Plant Breeding, 1(2), 199-204
8. Pathak R., Singh M. and Henry A. (2009) Indian J. Agric. Sci, 79(7), 559-561.
9. Girish M.H., Gasti V.D., Thammaiah N., Kerutagi M.G., Mulge R., Shantappa T. and Mastiholi A. B. (2012) Karnataka J. Agric. Sci, 25 (2), 245-247.
10. Ramanjaneyulu A.V., Gouri Shankar V., Neelima T.L. and Shashibhushan D.(2014) SABRAO Journal of Breeding and Genetics, 46(1), 99-111.
11. Ahmed A., Shaon S.G., Islam M.S., Saha P.S. and Islam M.M. (2014) Bangladesh J. Pl. Breed. Genet, 27(2), 25-32
12. ApsathBeevi H. and Venkatesan M. (2015) Journal of the Andaman Science Association, 20(1), 35-38
13. Supriya, Jaiswal H.K. and Anurag Srivastva. (2017) International Journal of Pure and Applied Bioscience,5 (2),441-448
14. Banumathy S., Manimaran R., Sheeba A., Manivannan N., Ramya B., Kumar D. and Ramasubramanian G.V. (2010) Electronic Journal of PlantBreeding,1(4), 500–504.
15. Srinivas B., Chandramohan Y., Thippeswamy S. and Padmaja D. (2016) International Journal of Bio-resource and Stress Management, 7(1), 001-007.
16. Mohan Y.C., Thippeswamy S., Bhoomeshwar K., Madhavilatha B. and Jameema Samreen (2015) SABRAO Journal of Breeding and Genetics, 47(2), 160–171.
17. Ramesh Babu P. and Sreelakshmi Ch. (2017) Journal of Rice Research, (1), 17-20.