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 |
An investigation was carried out to know the extent of genetic variability present in ten Chakhao rice (scented rice) of Manipur during kharif 2017. Ten Chakhao landraces namely Wairi chakhao, Khurkhul chakhao, Khunou chakhao, Chakhao sempak, Pong chakhao, Chetemo, Chakhao angangbi, Heimang chakhao and two Chakhao poireiton samples (from different locations) were taken for the experiment. The characters that were evaluated included days to 50% flowering, days to 80% maturity, plant height at maturity (cm), total number of tillers per plant, effective number of tillers per plant, number of seeds per panicle, panicle length (cm), 100 seeds weight and grain yield per plant. Statistical analysis showed significant differences between the tested landraces. The analysis of variance revealed highly significant differences for all the traits under study indicating adequate for selection. The high estimates for PCV and GCV were obtained for no. of seeds per panicle, panicle length, 100 seed wt. and seed yield per plant revealing that the cultivars have a broad genetic background that will respond positively in selection for improving these traits. All the nine characters under study exhibited high values for broad sense heritability. Correlation analysis showed a significant and positive relationship between seed yield per plantand plant height. The correlation study also showed that seed yield positively associated with no. of seeds per panicle and panicle length. The positive and significant correlation could be effectively exploited in scented rice yield improvement program.
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