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 present investigation was carried out in rice to measure the character association and direct and indirect effects of component characters on yield using 33 genotypes. The experiment was laid out in a randomized complete block design with two replications at the Agricultural College Farm Bapatla during kharif 2015. The association studies revealed that the genotypic correlations were, in general higher than the phenotypic correlations and thus suggested that the observed relationships among the characters were due to genetic factors. Grain yield per plant exhibited significant positive association with days to 50% flowering, days to maturity, plant height, number of productive tillers per plant and number of filled grains per panicle and non-significant positive association with panicle length and test weight. Path analysis studies revealed that improvement of grain yield per plant is possible through manifestation of plant height, number of productive tillers per plant and number of filled grains per panicle. Therefore, direct selection for any of the character would be effective for yield improvement in rice with simultaneous improvement of rest of the character.
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