摘要
在温室条件下用铭贤169、吨半麦、咸农4号3个小麦品种,研究了接种条锈菌条中32号小种前后UV-B辐射增强对小麦条锈病的影响。结果表明,接种前对小麦照射UV-B增强了品种铭贤169和吨半麦的病情指数,但对咸农4号的病情指数没有影响。接种后照射UV-B对品种咸农4号、铭贤169和吨半麦的病情指数均无显著影响,但却减少了条锈菌在品种铭贤169和吨半麦上的产孢期与产孢量。
The effects of enhanced UV-B on the wheat stripe rust on three wheat cultivars were investigated. In the first experiment, before inoculation, the wheat cultivars were irradiated with UV-B308 lamps and subjected to three treatments at three levels of UV-B radiation. In the second experiment, after inoculation, plants were irradiated with UV-B308 lamps. The results showed the UV-B effects differed depending on the wheat cultivars used. In the first experiment, no effects were observed on the interactions of a highly resistant cultivar with rust, but the rust severity significantly increased on two susceptible wheat cultivars after UV-B radiation. In the second experiment, no effects were detected on the interactions of all three cultivars with rust, but sporulation period and spore yield decreased on two susceptible wheat cultivars.
出处
《植物保护》
CAS
CSCD
北大核心
2008年第3期82-85,共4页
Plant Protection
基金
“973”项目(2006CB100203)
国家“十一五”科技支撑计划项目(2006BAD10A01)
关键词
UV—B辐射
小麦条锈病
病情指数
产孢面积
产孢量
UV-B irradiation
wheat stripe rust
disease index
sporulation period
spore yield