CHARACTERIZATION OF RICE GERMPLASM OF NORTH BIHAR FOR PANICLE MORPHOLOGY AND GRAIN CHARACTERISTIC TRAITS UNDER RAINFED LOWLAND AND DEEP WATER CONDITIONAnand Kumar, Sanjay Kumar, Sanjeev Kumar and Parmanand Parmhansh
Experiment was conducted to characterize a set of 120 land races of rice genotypes of north Bihar for nine panicle morpho-grain characteristics traits. A wide range of variation was observed with respect to panicle length, number of primary branches, number of grains per panicle, 1000-grain weight, L/B ratio, grain elongation and grain yield per plant. Head rice recovery ranged from 45-55 per cent in most of the genotypes. Estimates of coefficient of variation showed that variability in number of secondary branches (24.01%), number of primary branches (21.74%), number of grains per panicle (19.36%), L/B ratio (16.35), 1000-grain weight (14.21%) and grain elongation (7.49%). Based on the mean performances, the genotypes identified best were, viz.; TCA 88-42-2 and TCA 88-45 for panicle length, TCA 88-57-3 and TCA 88-51-3 for primary branches, TCA 95-2 and TCA 93-3 for secondary branches, TCA 88-2 and TCA 88-8-1 for number of grains per panicle, TCA 88-57-1 for head rice recovery, TCA 95-7 and TCA88-47 for 1000-grain weight, TCA 98-1 and TCA 95-6 for L/B ratio, TCA 88-1 and TCA 98-7 for grain yield per plant and TCA 88-92-1 and TCA 88- 42 for grain elongation respectively. The results of the characterization of different panicle morpho grain characteristics traits would prove beneficial in formulating breeding programme of lowland and deep water rice.
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