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Research Article

Response of Improved Durum Wheat (Triticum durum L.) Varieties to Wheat Stem Rust in Central Ethiopia

Abiyot Lemma1*, Getaneh Woldeab2 and Selvaraj T3
1EIAR, Worer Agricultural Research Center, P.O. Box 2003, Addis Ababa, Ethiopia
2EIAR, Ambo Plant Protection Research Center, P.O. Box 37, Ambo, Ethiopia
3Ambo University, P.O. Box 19, Ambo, Ethiopia
Corresponding Author : Abiyot Lemma
EIAR, Worer Agricultural Research Center
P.O. Box 2003, Addis Ababa, Ethiopia
Tel: 00251-911332353
E-mail: alemma2009@gmail.com
Received October 23, 2014; Accepted December 13, 2014; Published December 15, 2014
Citation: Lemma A, Woldeab G, Selvaraj T (2015) Response of Improved Durum Wheat (Triticum durum L.) Varieties to Wheat Stem Rust in Central Ethiopia. Adv Crop Sci Tech 3:158. doi: 10.4172/2329-8863.1000158
Copyright: © 2015 Lemma A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Wheat stem rust caused by Puccinia graminis f.sp. tritici is amongst the biotic factors which causes up to 100% yield loss during epidemic years. Therefore, the present study was carried out to observe the reaction of improved durum wheat varieties to virulent stem rust isolates at seedling growth stage and to stem rust population at adult growth stages. The finding of this experimental study was based on isolation and multiplication of virulent races of P. graminis, then ten durum wheat varieties including the susceptible check morocco were tested for the virulent isolates at seedling growth stage; and the reaction of these varieties under natural field conditions were evaluated in the Eastern and Western Showa of Central Ethiopia at adult growth stages. At seedling growth stage, 60% of varieties tested with the virulent stem rust isolate from Debrezeit exhibited resistance, while all varieties were resistant to Ambo isolate. Ten durum wheat varieties evaluated at adult plant growth stage to stem rust population of Debrezeit (Eastern Showa) showed severities of 20S in the variety Geredo to 70S in the variety Foka, while at Ambo (Western Showa) only the susceptible check, Morocco was infected up to 20S. The result indicated that stem rust from Debrezeit was virulent to durum wheat varieties as compared to the Ambo population.

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