Estimation of Gene Effects for Grain Yield and its Related Traits Under Normal and Saline Sodic Soil in Barley (Hordeum Vulgare L.)  

Rudrasen Singh Raikwar
Jawaharlal Nehru Krishi Vishwa Vidyalaya, Department of Genetics and Plant Breeding, College of Agriculture, Tikamgarh (M.P.)-472001,India
Author    Correspondence author
Triticeae Genomics and Genetics, 2014, Vol. 5, No. 1   doi: 10.5376/tgg.2014.05.0001
Received: 10 Nov., 2014    Accepted: 19 Dec., 2014    Published: 29 Dec., 2014
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Abstract

Six generations (P1, P2, F1, F2, BC1 and BC2) of three barley crosses were used for computation of generation mean analysis under normal and saline sodic soil conditions for yield contributing traits.  In general, magnitude of dominance effect (h) has a greater value than additive effect (d) in all the traits. It is obvious that non-fixable gene effects (h), (j) and (l) were higher than the fixable (d) (i) in all the crosses in all the characters, indicating greater role of non-additive effects in the inheritance of all the characters. Both additive (d) and dominance (h) gene effects were important for all the traits. It is obvious that non-fixable gene effects (h) (j) and (l) were higher than the fixable (d) (i) in all the crosses for all the characters, indicating greater role of non-additive effects in the inheritance of all the characters studied.

Keywords
Barley; Gene effects; Generation mean analysis; Quantitative trait; Recurrent selection; Scaling test
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