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Reaction of Algerian and international germplasm of wheat against races 1 and 5 of Pyrenophora tritici-repentis the causal agent of tan spot

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Title Reaction of Algerian and international germplasm of wheat against races 1 and 5 of Pyrenophora tritici-repentis the causal agent of tan spot
 
Creator Ouaar, Noureddine
Benbelkacem, Abdelkader
Singh, Pawan Kumar
Oumata, Sabrina
Benslimane, Hamida
 
Subject breeding
disease resistance
spots
wheat
germplasm
pyrenophora tritici-repentis
 
Description Tan spot caused by Pyrenophora tritici-repentis is an important foliar disease of wheat that can causes high yield losses. In Algeria, tan spot is widely present on both durum and bread wheat, the pathogen population structure was founded to be complex and showed a high molecular diversity. Among the various control measures, the most efficient and sustainable approach is the deployment of resistant cultivars. In this study, available germplasms of wheat, including 25 inbreeding lines, 54 landraces, and 37 cultivars were evaluated against races 1 and 5. Reaction of the 116 genotypes was initially evaluated under controlled conditions in seedling stage, and then the observed resistant genotypes, were evaluated in field in order to confirm their reaction against each race. Our results showed that a total 13 genotypes including inbreeding lines, landraces and cultivars showed resistant or moderately resistant reaction to race 1, while 23 genotypes, showed resistant response to race 5. However, only 1 landrace and 6 cultivars were resistant to both races 1 and 5. Genotype-resistant response in field in adult plant was similar to one recorded on growth room. These results have allowed us to recommend cultivation of some cultivars, according to races prevalent in Algerian regions, as well as recommending breeders to use the resistant sources in their breeding programs. For our knowledge, this is the first report of germplasm evaluation against tan spot disease in Algeria, and the first report of identification of resistant resources to this disease.
 
Date 2022-03
2023-01-05T09:04:16Z
2023-01-05T09:04:16Z
 
Type Journal Article
 
Identifier Ouaar, N., Benbelkacem, A., Singh, P.K., Oumata, S. and Benslimane, H. 2022. Reaction of Algerian and international germplasm of wheat against races 1 and 5 of Pyrenophora tritici-repentis the causal agent of tan spot. Cereal Research Communications 50(1):75–84.
0133-3720
1788-9170
https://hdl.handle.net/10568/126595
https://doi.org/10.1007/s42976-021-00161-1
 
Language en
 
Rights Copyrighted; all rights reserved
Limited Access
 
Format p. 75-84
 
Publisher Springer Science and Business Media LLC
 
Source Cereal Research Communications