RICE BREEDING LINES DEVELOPED WITH HIGHLY EFFICIENT SUBMERGENCE TOLERANCE THROUGH ADVANCED SINGLE SEED DESCENT METHOD FOR SEMI-LOWLAND AND -DEEP LOWLAND AREAS
Journal Title: International Journal of Genetics - Year 2015, Vol 7, Issue 1
Abstract
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.
Authors and Affiliations
S. BHARATHKUMAR, P. J. PRAGNYA, K. JITENDRA, D. RAVINDRA, B. SK. YASIN, G. GAYATRI, P. MADHUCHHANDA, A. MAHENDER, M. SOUMYA, J. N. REDDY
Keywords
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