IDENTIFICATION OF GENES FOR RESISTANCE TO STEM RUST AND THEIR DIVERSITY IN EIGHT BREADWHEAT VARIETIES. I. CROSSES WITH SUSCEPTIBLE PARENTS AND Sr LINES
Main Article Content
Abstract
A set of eight sources of stem rust resistance, viz., HD 2009, HD 2177, HD 2189, WH 169, HW142, TzPP, Marco Juarez Inta, and Pi 62-Gb% XTzPP x Knott#2 (E 8643), were crossed to two susceptible parents and Sr lines. Tests in the seedling stage were carried out with races 40 and 295 of stem rust. The F% and F3 investigations indicated the presence of 2-3 genes in different sources. These were dominant, recessive or complementary in nature. Modification ofgene action from complementary to dominant duplicate factors in different genetic backgrounds was observed. The genes Sr6, Srll and Sr26 against race 40 were detected in some sources. There were indications of the presence of gene Srge against race 295. F3 analysis indicated different genes for the two races, except Sr26 present in E 8643 causes resistance against both the races.
Article Details
How to Cite
KAUSHAL, K., & UPADHYAYA, Y. M. (1995). IDENTIFICATION OF GENES FOR RESISTANCE TO STEM RUST AND THEIR DIVERSITY IN EIGHT BREADWHEAT VARIETIES. I. CROSSES WITH SUSCEPTIBLE PARENTS AND Sr LINES. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 55(03), 221–227. https://doi.org/.
Section
Research Article
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.