Evaluation of bread wheat genotypes for adult plant
resistance to stem rust
Volume 9 - Issue 2
Getnet Muche Abebele*
- Department of Plant Pathology, Kulumsa Agricultural Research Center, Ethiopian Institute of Agricultural Research, Ethiopia
Received: December 02, 2020; Published: December 16, 2020
Corresponding author: Getnet Muche Abebele, Department of Plant Pathology, Kulumsa Agricultural Research Center, Ethiopian
Institute of Agricultural Research, Ethiopia
DOI: 10.32474/CIACR.2020.09.000307
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Abstract
Wheat stem rust (Puccinia graminis f. sp tritici) also known as ‘polio of agriculture’ is a ravaging disease of wheat (Triticum
aestivum L.) making it a foremost confront to wheat production in Ethiopia and other wheat producing countries of the world
due to the frequently evolving of virulent pathogen races. Because of this, searching novel genes in wheat genotypes is a critical
issue. Twenty eight advanced bread wheat genotypes were evaluated for their response against stem rust caused by Puccinia
graminise under field conditions at Kulumsa and Asassa during 2018 main growing season. Evaluation was carried out through
disease assessment including terminal stem rust severity (TRS) and coefficient of infection (ACI) under natural infection. Twenty
two wheat genotypes viz; ETBW-8858, ETBW-8870, ETBW-8583, ETBW-8684, ETBW-9548, ETBW-9549, ETBW-9554, ETBW-9558,
ETBW-9559, ETBW-9560, ETBW-8751, ETBW-8862, ETBW-8804, ETBW-8896, ETBW-8991, ETBW-9560, ETBW-9556, ETBW-
9486, ETBW-9561, ETBW-9550, ETBW-9553 and ETBW-9555 out of twenty-eight evaluated genotypes were discovered to be adult
plant resistant (TRS<30 and ACI<20 ) to stem rust disease at both screening sites. Therefore, these genotypes with high stem rust
resistance could be backcrossed to widely acclimatized and high yielding but susceptible Ethiopian wheat varieties to prevent
further wheat yield declines. However, may need to evaluate for seedling response to confirm whether the genotypes are true adult
plant resistant.
Keywords: Adult plant; Puccinia graminis; Stem rust; TRS; Wheat genotypes
Abstract|
Introduction|
Materials and Methods|
AMF and Nitrogen|
Results and Discussion|
Conclusions|
References|