GENETIC VARIABILITY AND CHARACTER ASSOCIATION FOR YIELD AND QUALITY PARAMETERS IN POPULAR RICE HYBRIDS (Oryza sativa L.)

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dc.contributor.advisorKULDEEP SINGH DANGI
dc.contributor.authorSHREYA, K.
dc.date.accessioned2016-07-28T13:24:21Z
dc.date.available2016-07-28T13:24:21Z
dc.date.issued2009
dc.description.abstractThe present investigation was carried out during kharif, 2008 to study the genetic parameters for yield and yield characters, grain quality characters, character association and path coefficient analysis in twenty one rice hybrids. The experiment was laid out at Directorate of Rice Research Farm, ICRISAT Campus, Patancheru, Hyderabad in a Randomized Block Design with three replications. Data were recorded on yield, yield attributing characters and grain quality characters. Analysis of variance indicated the existence of significant differences among genotypes for all the characters studied except for milling percentage. The characters viz., number of filled grains per panicle, number of chaffy grains per panicle and Iron content exhibited high GCV and PCV. The differences between GCV and PCV were low for all the characters studied which indicated less influence of environment on these characters. The characters viz., number of filled grains per panicle and water uptake by the grain exhibited high heritability coupled with high genetic advance indicating role of additive gene action in the inheritance of these traits. Character association studies revealed significantly positive association of grain yield per plant with number of productive tillers per plant, whereas characters such as days to 50 per cent flowering had significant and positive association with plant height, panicle length and number of filled grains per panicle, plant height exhibited positive and significant association with number of filled grains per panicle, number of chaffy grains per panicle and panicle length, while panicle length exhibited positive significant association with number of filled grains per panicle, number of chaffy grains per panicle and 1000 grain weight. Therefore, selection for these traits can improve yield. Path coefficient analysis revealed that number of productive tillers per plant has shown high positive direct effect on grain yield. Genetic as well as management practices will play a pivotal role for the exploitation of higher yields in rice in the present study. Hence, emphasis can be placed on this character for yield improvement.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/70157
dc.language.isoenen_US
dc.publisherACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY RAJENDRANAGAR, HYDERABADen_US
dc.relation.ispartofseriesD8505;
dc.subGenetics and Plant Breeding
dc.subjectGENETIC, VARIABILITY, CHARACTER, ASSOCIATION, YIELD, QUALITY, PARAMETERS, POPULAR, RICE, HYBRIDSen_US
dc.these.typeM.Sc
dc.titleGENETIC VARIABILITY AND CHARACTER ASSOCIATION FOR YIELD AND QUALITY PARAMETERS IN POPULAR RICE HYBRIDS (Oryza sativa L.)en_US
dc.typeThesisen_US
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