Title: Resistance to Leaf Rust in Forty-three Chinese Wheat Cultivars and Lines
Abstract: Leaf rust,caused by Puccinia triticina,is an important disease of wheat(Triticum aestivum) in China.The presence of leaf rust resistance genes in 43 Chinese cultivars and breeding lines was postulated by comparing their seedling reactions to those produced by the known Lr single gene lines in a multi-race test.Nine wheat cultivars and lines displayed susceptible reactions to all races.Another nine were postulated to carry unknown resistance gene(or genes).Only six known genes,viz. Lr1 (in two lines),Lr10(one),Lr13(one),Lr14a(two),Lr16(seven) and Lr26(seventeen),could be identified.Assessment of adult plant resistance at two field sites in Mexico showed that nearly half of the wheat cultivars and lines had useful levels of resistance and 12 wheat cultivars and lines carried slow rusting resistance that could be useful for future breeding in China.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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