Abstract            Volume:9  Issue-11  Year-2021         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

Information on genetic inheritance of quantitative traits is important to manipulate desirable genes. The aims of this study were to identifying superior parents and gene actions and interactions involved in controlling lodging and some agronomic characters on barley. Half 7x7 diallel analysis was conducted on 28 barley genotypes as well as generation mean analysis was done on six basic generations [F_1, F₂, BC₁, BC_2, P₁, P₂]in RCB design during 2014 and 2015 at Holetta, Ethiopia. The combining ability and generation mean analysis result showed the importance of additive (fixable) and non-additive (non-fixable) gene effects in the inheritance of all traits including lodging tolerance and grain yield. Grace and Sabini parents contained additive alleles for reducing plant height and lodging tolerance while HB42 and HB1307 had additive alleles for grain yield. Furthermore, generation mean analysis showed the prescience of non-allelic gene interaction for all characters studied. The three parameter model ([m], [d] and [h]) was adequate to explain the genetic variation for days to maturity, lodging severity at heading stage, physical test of straw strength and spike length. The finding suggests more additive effects of the genes have been expressed lodging tolerance in barley.

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