山东省小麦条锈菌群体毒性变异及致病力测定

１９９１～１９９４年对条锈菌生理小种演变情况进行监测研究结果表明，条中２９号仍是山东省当前优势毒性小种，其对多数生产品种具有较强毒力，对鲁麦１６、鲁麦１９及多数新品系和抗源则无毒性或弱致病性；近年出现的条中３０号新小种，其毒性基因谱更宽，应加强对其监测和流行预测。本文还介绍了１９６３～１９９０年山东省小麦条锈菌在不同时期优势小种的演变及其与小麦品种抗性丧失的关系。

Population Toxicity Variation and Pathogenicity of Wheat Stripe Rust Races in Shandong Province

Monitoring transmutation of wheat strip rust races in 1991-1994 revealed that the race Tiaozhong 29 could be still considered superior toxic one in Shandong Province, which had strong toxicity to most of wheat varlettes in production. However, it had either no toxicity or weak pathogenicity to wheat varieties Lumei 16 and Lumei 19, to most of new lines and antigens. Tiaozhong 30, a new race with wider toxic gene spectrum, should be seriously monitored and forecasted for its infection.