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Genetic Variability, Correlation and Path Analysis in Rice (Oryza sativa L.) under Coastal Salinity Conditions of Goa

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Title Genetic Variability, Correlation and Path Analysis in Rice (Oryza sativa L.) under Coastal Salinity Conditions of Goa
Not Available
 
Creator K. K. Manohara
Narendra Pratap Singh
 
Subject Coastal salinity, Correlation and Path analysis, Genetic variability, Rice
 
Description Not Available
An experiment was conducted during wet season of 2012 to study genetic variability, correlation
and path coefficient analysis in 31 diverse salt tolerant rice genotypes under coastal salinity
conditions of Goa. Analysis of variance showed highly significant differences among the tested
genotypes for all the characters studied. Phenotypic coefficient of variation (PCV) was higher
compared to that of genotypic coefficient of variation (GCV) in all the characters indicating the
influence of environment on the expression of these traits. High heritability coupled with high
genetic advance was observed for days to 50% flowering, length to breadth ratio, 100 grain
weight, straw yield per plot, harvest index and grain yield per plot indicating that these characters
are governed by additive gene action. Grain yield per plot showed positive and significant correlation
with panicle length, grain length, filled grains per panicle, spikelet fertility and straw yield per plot
and harvest index. Results of the path analysis indicated that grain length had maximum direct
effect on grain yield followed by harvest index and straw yield per plot. Such characters could be
utilized in selection for improving the grain yield under coastal salinity conditions.
Not Available
 
Date 2018-11-14T06:34:03Z
2018-11-14T06:34:03Z
2015-05-22
 
Type Research Paper
 
Identifier Manohara, K. K. and Singh, N. P. 2015. Genetic Variability, Correlation and Path Analysis in Rice (Oryza sativa L.) under Coastal Salinity Conditions of Goa. Journal of the Indian Society of Coastal agricultural Research. 33(1): 34-39.
0972-1584
http://krishi.icar.gov.in/Publication/handle/123456789/11079
 
Language English
 
Relation Not Available;
 
Publisher Not Available