Author(s):

GN Hosagoudar, Umesh Babu BS and Basavaraj S Kovi

Abstract: The present study was carried out at Agricultural and Horticultural Research Station, Ponnampet, University of Agricultural and Horticultural Sciences, Shivamogga during 2015. The experimental material comprised of 17 different varietal lines including existing variety as check. Mean performance of individual rice genotypes revealed that the days to 50% flowering found to vary from 72.50 days to 112.00. Plant height was found to vary from 65.35 cm to 104.66 cm with average height of 87.68 cm. Number of panicles per m² area ranged from 333.96 (Tunga) to 493.68 (Sambamasuri) with mean of 439.87 panicles/m² area. The genotype Tunga produced maximum grain yield (5527.78 kg/ha) followed by IVT-L-RSL-524 (3972.22 kg/ha), whereas AVT-L-1723 was found to be inferior in grain yield (2652.78 kg/ha). Analysis of variance revealed highly significant sum of squares due to genotypes for all the characters indicating existence of ample variability among the genotypes.The traits such as days to 50% floweringand grain yield which showed high heritability coupled with high genetic advance could be used as selection criteria for their improvement since these are governed by additive gene action. The traits like plant height and panicles number/m² could be used as indirect selection criteria for their simultaneous improvement.

Pages: 935-939  |  936 Views  217 Downloads

Download (569KB)