论文部分内容阅读
20 0 0年全国小麦条锈病发生为非流行年 ,四川省属于中等偏重发生 ,其他麦区轻或零星发生。 2 0 0 1年全国小麦条锈病为中度流行年份 ,四川、云南和贵州为中度偏重流行 ,陕西、湖北和河南中部中度流行 ,甘肃中度偏轻发生 ,河南、山西、山东和河北等东部麦区轻和局部零星发生。对 14 82个小麦条锈菌标样鉴定结果表明 ,条中 32号(Hybrid 4 6类型 3,HY-3)近年出现频率持续上升 ,2 0 0 1年其出现频率首次居各小种及致病类型首位 ,为 2 8 79% ,预测今后一段时间内将成为我国的主要流行小种之一。条中 31号 2 0 0 1年出现频率为 9 5 1% ,比 2 0 0 0年 13 5 %有所下降 ,居第 2位。条中 30号 2 0 0 1年出现频率为 7 33% ,比 2 0 0 0年 3 5 5 %有所回升 ,在各小种及致病类型中居第 3位。抗条锈育种应以条中 32、31、30号和水源 11类型 14为主要对象 ,兼顾条中 2 9号、Hybrid 4 6和水源 11的其他致病类型
Stripe rust is a non-epidemic year in the whole country in 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0. Stripe rust was a medium-prevalence year in 2001, moderate in Sichuan, Yunnan and Guizhou, moderate in Shaanxi, Hubei and central Henan, and moderately mild in Gansu. Henan, Shanxi, Shandong and Hebei Eastern wheat and other light and local sporadic occurrences. The results of 14 82 wheat stripe rust samples showed that the frequency of Hybrid 4 6 type 3 and HY-3 increased continuously in recent years, The first place of disease was 2 8 79%. It is predicted that it will become one of the major epidemic species in our country in the coming period. The frequency of occurrence of No. 31 in 2001 was 951%, down from 135% in 2000, ranking No. 2. The number 30 in 2001 showed a frequency of 7 33%, up from 35.5% in 2000, ranking the third among all races and pathogenic types. Anti-stripe rust breeding should be Article 32, 31, 30 and water source 11 type 14 as the main object, taking into account Article 29, Hybrid 4 6 and water 11 other pathogenic type