PERFORMANCE OF RICE HYBRIDS AND THEIR PARENTS FOR SALINITY TOLERANT TRAITS IN DIFFERENT SEASONS UNDER SALINE CONDITIONS

Publication Date : 28/02/2015


Author(s) :

K. NAGENDRA RAO , Y. SURYANARAYANA , T.ANURADHA.


Volume/Issue :
Volume 1
,
Issue 2
(02 - 2015)



Abstract :

Ten parents and their 45 F1 hybrids were studied in 4 environments viz., Normal Kharif, Late Kharif in 2011, Normal rabi 2011-12 and Late rabi, 2012 with the objective of identifying stable parents and hybrids in addition to specific parents and hybrids for specific season. The analysis of variance (ANOVA) reveals significant mean squares for genotypes, parents, hybrids and parents x hybrids were noticed for majority of the characters studied in most of the seasons, indicating the existence of variability among the genotypes, parents and hybrids for the various traits studied in the present investigation. The results on mean performance for parents and hybrids for salinity tolerant traits and grain yield for different seasons indicated that higher grain yield per plant was recorded during normal rabi, while shoot length, shoot dry weight, shoot potassium content, root length and root dry weight were higher during normal kharif. While late rabi resulted in higher shoot sodium content.


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