Effect of Temperature on Monogenic Lines of Wheat Leaf Rust Caused by Puccinia triticina
El-Orabey, W., Shaheen, D., Mabrouk, O., Elkot, A., Esmail, S. (2020). Effect of Temperature on Monogenic Lines of Wheat Leaf Rust Caused by Puccinia triticina. EKB Journal Management System, 42(3), 263-277. doi: 10.21608/agro.2020.30089.1226
Walid El-Orabey; Dalia Shaheen; Ola Mabrouk; Ahmed Elkot; Samar Esmail. "Effect of Temperature on Monogenic Lines of Wheat Leaf Rust Caused by Puccinia triticina". EKB Journal Management System, 42, 3, 2020, 263-277. doi: 10.21608/agro.2020.30089.1226
El-Orabey, W., Shaheen, D., Mabrouk, O., Elkot, A., Esmail, S. (2020). 'Effect of Temperature on Monogenic Lines of Wheat Leaf Rust Caused by Puccinia triticina', EKB Journal Management System, 42(3), pp. 263-277. doi: 10.21608/agro.2020.30089.1226
El-Orabey, W., Shaheen, D., Mabrouk, O., Elkot, A., Esmail, S. Effect of Temperature on Monogenic Lines of Wheat Leaf Rust Caused by Puccinia triticina. EKB Journal Management System, 2020; 42(3): 263-277. doi: 10.21608/agro.2020.30089.1226

Effect of Temperature on Monogenic Lines of Wheat Leaf Rust Caused by Puccinia triticina

Egyptian Journal of Agronomy
Article 4, Volume 42, Issue 3, December 2020, Page 263-277  XML PDF (1.42 MB)
Document Type: Original Article
DOI: 10.21608/agro.2020.30089.1226
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Authors
Walid El-Orabey email orcid 1; Dalia Shaheen1; Ola Mabrouk1; Ahmed Elkot2; Samar Esmail1
1Plant Pathology Research Institute, Agricultural Research Center (ARC), Giza, Egypt
2Wheat Research Department, Field Crops Research Institute, Agricultural Research Center (ARC), Giza, Egypt
Abstract
WHEAT leaf rust, caused by the fungus Puccinia triticina Eriks., is a destructive disease found throughout common wheat production areas worldwide. Fifty wheat leaf rust monogenic lines were tested with five of Puccinia triticina pathotypes, i.e. BJPPQ, LQFDS, PHFPG, PTPDN, TRFDJ at four stable temperatures (300C, 250C, 200C and 150C). The wheat monogenic lines viz. Lr 16, Lr 17 and Lr 23 were more resistant at 250C, while these genes were found susceptible at 150C, 200C and 300C to all tested races. Eight monogenic lines, i.e. Lr11, Lr12, Lr13, Lr14a, Lr18, Lr47, Lr50 and Lr68 displayed temperature sensitivity which were completely resistant at 150C and 200C. Lr11, Lr12, Lr13, Lr14a, Lr18, Lr47, Lr50 and Lr68 were completely susceptible at 250C and 300C to all races of Puccinia triticina. Lr 34 showed temperature sensitivity to three of the tested races (LQFDS, PHFPG and PTPDN) which was resistant at 150C and 200C, but was susceptible at 250C and 300C. Genes like Lr1, Lr2a, Lr2b, Lr2c, Lr3ka, Lr3, Lr9, Lr10, Lr14b, Lr15, Lr10+27+31, Lr19, Lr24, Lr28, Lr33, Lr36, Lr39, Lr42, Lr51 and Lr67 were slightly resistant at all temperatures to some races and were susceptible to other races. The other tested monogenic lines were susceptible at all temperatures to all tested races. Further, this study will be helpful to develop resistant cultivars against leaf rust of wheat.
Keywords
Wheat; Leaf rust; Resistance genes; Temperature; Puccinia triticina
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