Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094
October 2017 Vol. 6(10): pp. 347-353
Copyright © 2017 Global Advanced Research Journals

 

Full Length Research Paper

Selection for Heat Tolerance in Bread Wheat (Triticum aestivum L.)

Tharwat EL Ameen and Ebaid M. A. Ebrahim

 

Department of Genetic, faculty of agriculture, South valley university, Qena, Egypt.

Email: thrawat_ameen@yahoo.com

Accepted 19 September, 2017

 

Abstract

Cell membrane thermostability (CMS) is considered to be one of the major selection indices of drought tolerance in cereals. Therefore, in this context, selection for cell membrane thermostability was performed under heat stress in two F2 bread wheat populations . The experiment was conducted during winter of 2014 and 2015 at the research farm of South Valley University, Qena, Egypt. The observed responses to selection for CMS were 23.51% in population 1 and 22.28 % in population 2 under heat stress. Significant positive correlations were obtained in grain yield and number of kernel. The dominance gene effects are involved in the inheritance of CMS. For grain yield, family number 1 in population 1 and family number 2 and 3 in population 2 were relatively heat resistance (HIS <1). Family number 1 was the highest grain yield under heat stress . 

Keywords:  Bread Wheat, Triticum aestivum L.

 

Cell membrane thermostability (CMS) is considered to be one of the major selection indices of drought tolerance in cereals. Therefore, in this context, selection for cell membrane thermostability was performed under heat stress in two F2 bread wheat populations [w1] . The experiment was conducted during winter of 2014 and 2015 at the research farm of South Valley University, Qena, Egypt. The observed responses to selection for CMS were 23.51% in population 1 and 22.28 % in population 2 under heat stress. Significant positive correlations were obtained in grain yield and number of kernel. The dominance gene effects are involved in the inheritance of CMS. For grain yield, family number 1 in population 1 and family number 2 and 3 in population 2 were relatively heat resistance (HIS <1). Family number 1 was the highest grain yield under heat stress.


 [w1]Red=change, yellow=delete.

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