Abstract

To study the variability, 22 promising genotypes along with two checks that is, ‘Parag’ and ‘Avishkar’ were evaluated for grain quality characters. Analysis of variance revealed that there were significant differences among the genotypes for grain quality characters like length:breadth ratio, relative density, water absorption, gel consistency, amylose content and protein content. The genotypes PBNR 03-07, PBNR 03-10, PBNR 03-11, PBNR 03-20, PBNR 04-23, PBNR 08-01, PBNR 08-04 and PBNR 08-06 showed more preferred level of grain quality parameters like intermediate amylose content and soft gel consistency. The maximum protein content was recorded in genotypes PBNR 03-11, PBNR 04-37 and PBNR 03-10. High phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) was noticed for water absorption and gel consistency. High heritability coupled with high to moderate expected genetic advance was noticed for water absorption and gel consistency indicating scope for selection in these characters.

Key words: Rice, variability, quality characters, heritability.