National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The investigation carried out at Indian Institute of Rice Research Farm, ICRISAT, Patencheru, Hyderabad, Telangana, India, during Rabi, 2015-16 in order to estimate genetic variability, heritability and genetic advance in 154 genotypes of rice for pollen viability and spikelet fertility. Phenotypic coefficient of variation in general were higher than genotypic coefficient of variation for traits like pollen viability, spikelet sterility indicating high environmental effect on the expression of these traits except days to 50 % flowering and Number of grains per panicle which were less affected by environment for expression. Thus, selection based on phenotypic performance for days to flowering, Number of grains per panicle would be effective to bring about considerable genetic improvement. In the present investigation, high heritability coupled with high genetic advance was observed for spikelet fertility, plant height, single plant yield, number of grains per panicle, number of tillers per hill, pollen viability, number of productive tillers per hill, panicle length and 1000 grain weight. Thus, these traits are predominantly under the control of additive gene action and hence these characters can be improved by pedigree method of breeding.
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