Vol. 12, Issue 7 (2023)

Author(s):
Biswajit Sahoo, Sandeep Bhandarkar and Ramlakhan Verma

Abstract:
Rice (Oryza sativa L.) is one of the major food crops, feeding more than half of the world's population. Major aim of rice breeding program is to enhance the yield potential by utilizing genetically diverse parent. The study was conducted in Kharif 2016 and Rabi 2016-17 at the Research and Instructional Farm, Indira Gandhi Krishi Vishwavidyalaya (IGKV), Raipur, Chhattisgarh and Kharif 2017 at Research Farm of National Rice Research Institute (NRRI), Cuttack, Odisha (India). 10 rice parental genotypes, Chandrahasini, Samleshwari, Durgeshwari, IC-134022, IC-388728, IC-389860, IC-390376, IC-548384, Indira Barani Dhan1, IRHTN-105 and seven F3-F4 populations were taken for the study of genetic diversity e.g. plant height, flag leaf length, flag leaf width, no. of effective tillers, panicle length in rice. It was reported that out of 306 genotypes, plant was classified in to short (3 genotypes) and tall (22 genotypes). 5 genotypes having broad flag leaf, 28 genotypes having more than 12 ear bearing tillers whereas 87 genotypes having at par with largest panicle length. Hence, based on the results obtained in the present study the maximizing genetic gain in breeding population can be inferred to be playing important role in further enhancement in farm productivity of rice.