World Journal of Agricultural Research
ISSN (Print): 2333-0643 ISSN (Online): 2333-0678 Website: http://www.sciepub.com/journal/wjar Editor-in-chief: Rener Luciano de Souza Ferraz
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World Journal of Agricultural Research. 2014, 2(3), 109-114
DOI: 10.12691/wjar-2-3-4
Open AccessArticle

Some Physiological Parameters as Screening Tools for Drought Tolerance in Bread Wheat Lines (Triticum aestivam L.)

A.A.S. Ahmed1, R. Uptmoor2, M.A. El-Morshidy3, K.A. Kheiralla3, M.A. Ali4 and Naheif E.M. Mohamed1,

1Dep. of Agronomy, Faculty of Agriculture, Sohag University, Egypt

2Institute of Biological Production Systems, Hannover University, Germany

3Dep. of Agronomy, Faculty of Agriculture, Assiut University, Egypt

4Dep. of Agronomy, Faculty of Agriculture, South Valley University, Egypt

Pub. Date: May 06, 2014

Cite this paper:
A.A.S. Ahmed, R. Uptmoor, M.A. El-Morshidy, K.A. Kheiralla, M.A. Ali and Naheif E.M. Mohamed. Some Physiological Parameters as Screening Tools for Drought Tolerance in Bread Wheat Lines (Triticum aestivam L.). World Journal of Agricultural Research. 2014; 2(3):109-114. doi: 10.12691/wjar-2-3-4

Abstract

Two greenhouse experiments were carried out at the Institute of Biological Production Systems, Leibniz Universität Hannover, Germany during 2008/2009 and 2009/2010 growing seasons to study the influence of the osmotic adjustment (OA) capacity, relative water content (RWC) and specific leaf area (SLA) on tolerance to drought in 22 breeding lines, two parents and tolerant cultivar (Sahel 1) of bread wheat (Triticum aestivam L.) under drought conditions. Differences were seen in of the OA, RWC and of the different genotypes. Mean over all of OA, RWC and for breeding lines were -0.51 Mpa, 83.28% and 116.56 cm²g-1, respectively. Four of the breeding lines showed the greatest osmotic adjustment capacities, high RWC and good values under drought stress conditions better than the tolerant cultivar. The heritability of OA, RWC and was 0.56, 0.49 and 0.88, respectively. The results indicated that osmotic adjustment, as well as RWC and could be used as screening tools for drought resistant bread wheat genotypes in the greenhouse. This study also demonstrated the appropriate greenhouse screening methodology in this regard.

Keywords:
wheat drought osmotic adjustment heritability

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