摘要
通过对东北地区小麦白粉菌群体结构分析和小麦生产品种抗病基因推导，明确了东北春麦区小麦白粉病菌群体种群构成。其中１１号和１５号小种为优势小种，其频率分析达到２９２１％和３２６９％。小麦白粉菌毒性基因Ｖ１、Ｖ３ａ、Ｖ３ｂ、Ｖ３ｃ、Ｖ５、Ｖ７和Ｖ８毒力频率较高（＞５０％），Ｖ２、Ｖ４ａ、Ｖ４ｂ、Ｖ２＋６和Ｖ２１毒力频率较低（５％），Ｖ３ｆ、Ｖ５＋Ｍ１ｉ、Ｖ６和Ｖ１７毒力频率变化幅度较大（４４％～７４４％）。推导出辽宁省主栽品种含有的抗病基因。
The
populations of Blumeria graminis DC. on spring wheat in Northeastern China were clarified
based on the composition of B. graminis and the deducing resistant gene of wheat cultivars.
Among the physiological races, No. 11 and No. 15 were the prevalent races with the ratio of 29.
21% and 32.69%, respectively. The virulent frequency of V1, V3a, V3b, V3c, V5, V7 and V8 were
high (more than 50%), but that of V2, V4a, V4b, V2+6 and V21 were low (less than 5%). Then the
variable range of virulent frequency of V3f, V5+M1i, V6 and V17 fluctuated betwecn 4.4% and 74.
4%. The resistant genes of applied wheat cultivars in Liaoning Province were
deduced.
出处
《植物保护》
CAS
CSCD
北大核心
1999年第3期1-4,共4页
Plant Protection
