ISSN : 0975-2862
EISSN : 0975-9158
S. BHARATHKUMAR1*, P.J. PRAGNYA2, K. JITENDRA3, D. RAVINDRA4, B.SK. YASIN5, G. GAYATRI6, P. MADHUCHHANDA7, A. MAHENDER8, M. SOUMYA9, J.N. REDDY10
1Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
2Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
3Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
4Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
5Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
6Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
7Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
8Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
9Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
10Crop Improvement Division, ICAR-Central Rice Research Institute (CRRI), Cuttack - 753 006, Odisha, India.
* Corresponding Author : bharathkumar76@gmail.com
Received : 08-08-2015 Accepted : 10-09-2015 Published : 14-09-2015
Volume : 7 Issue : 1 Pages : 165 - 169
Genetics 7.1 (2015):165-169
Keywords : Advanced single seed descent method, Sub1 locus, IYT1, Sub1BC2, breeding lines, donor and submergence stress
Academic Editor : Amit Kumar Mishra, Arpita Padhy, Pooja Dubey Pandey, Ranganathan Kapilan, Sai Krishna Repalli, Upendra Yadav, Dr Bhagya B Sharma, Dr Tapan A. Patel
Conflict of Interest : None declared
Acknowledgements/Funding : This work was funded by Department of Biotechnology (DBT), INDIA. We sincerely thank the Director, CRRI for providing facilities to conduct this study.
In the present study, sixty-three breeding lines of rice cultivars adapted for semi-lowland and semi-deep lowland areas were developed for submergence tolerance through the single seed descent (SSD) method. In submergence evaluation of these lines, we have selected many breeding lines associated with highly submergence tolerance. For instance, some breeding lines, CR 2589-8-1-1-1, CR 2590-9-1-1-2 and CR 2530-B-1-5-1-1 accounted for 100 percent survival rate in the evaluation. Besides, many breeding lines have showed survival rate more than 90 percent. In PCR level, we confirmed the presence of Sub1 locus in the submergence tolerant lines. Moreover, these selected lines were more efficient than donor and tolerant checks also. Thus developed breeding lines with high efficiency for submergence tolerance at field level could be complementary for rice farmers who cultivate rice in semi-lowland and semi-deep lowland areas of eastern region of India.