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Path Coefficient Analysis using Rils of Oryza nivara in Swarna Background

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Title Path Coefficient Analysis using Rils of Oryza nivara in Swarna Background
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Creator N. P. S. De Silva, V. G. Shankar, D. Balakrishnan, B. Kavitha, Y. V. Rao, P. Prashanthi, N. Sarla, SNCVL. Pushpavalli and D. Srinivasa Chary
 
Subject Rils of Oryza nivara, Path Coefficient Analysis
 
Description RILS derived from a cross between Swarnax 166s (Advanced BIL of Swarna x O. nivara)
were field evaluated in Rabi 2017-18, Rabi2018-19 and Kharif2019 considering the
importance of yield related traits in selection for improvement of grain yield. The F5, F6
and F7 generations of the RILs were evaluated as three row families in RCB design with
two replicates using Swarna and 166s as checks at research farm, IIRR, Hyderabad, India
under irrigated conditions. The observations were recorded for the traits plant height, total
number of tillers per plant, productive tillers per plant, biomass weight per plant, 1000-
grain weight and single plant grain yield for which path coefficient analysis was carried
out. Analysis of variance revealed that the genotypes were significantly different for the
yield and other traits studied during three seasons, indicating the presence of high
genotypic variability among the genotypes. Path coefficient analysis revealed that
productive tiller number per plant exerted the highest positive direct effect on single plant
grain yield among the traits studied. This was followed by biomass weight per plant and
plant height at both phenotypic and genotypic levels indicating that selection for these
traits would help to overall improvement of the grain yield in rice. Total tiller number per
plant at both phenotypic and genotypic levels and 1000-grain weight at genotypic level
showed negative direct effect with single plant grain yield.
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Date 2022-04-07T05:30:08Z
2022-04-07T05:30:08Z
2021-11-02
 
Type Research Paper
 
Identifier 14. De Silva, N. P. S., V. G. Shankar, D. Balakrishnan, B. Kavitha, Y. V. Rao, P. Prashanthi, N. Sarla, SNCVL. Pushpavalli and Srinivasa Chary, D. 2021. Path Coefficient Analysis using Rils of Oryzanivara in Swarna Background. Int.J.Curr.Microbiol.App.Sci. 10(2): 86-94.
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http://krishi.icar.gov.in/jspui/handle/123456789/71259
 
Language English
 
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Publisher Not Available