National Academy of Agricultural Sciences (NAAS)
|
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 entitled “Correlation and Path coefficient analysis in Rice for sodicity tolerance” comprised of 7 lines and 3 testers recommended for sodic soil. Crosses were made in “line x tester mating design (Kempthorne, 1957). Thus 21 crosses (F1’s) were produced during 2015. The values of average degree of dominance greater than unity (>1) in addition to predictability ratio (<1) along with higher values of σ2 SCA than σ2 GCA revealed existence of over dominance for all the traits. Tester effect is higher than Line effect for all traits confirming predominant role of non-additive gene action in the inheritance of all the characters studied. Grain yield per plant showed highly significant and positive correlation with plant height, flag leaf area, panicle bearing tillers per plant, panicle length, grains per panicle, 1000 grain weight and biological yield per plant. Path analysis showed that, the high positive direct effects on grain yield per plant were exerted by biological yield per plant followed by harvest index. Hence, these traits should be emphasized during selection of rice genotypes under sodic soil.
Citations |
 |
 |
 |
 |
