温湿度对枯草芽胞杆菌B36菌株可湿性粉剂防治番茄灰霉病效果的影响

摘要

The effects of humidity and temperature on Bacillus subtilis B36 WP were studied in the laboratory.The results showed that, at a relative humidity (RH) of 90％, the protection and control efficiency of the preparation of B. subtilis B36 WP was 82.9％ and 61.63％, respectively; at RH 100％, 32.84％ and 31.63％; at RH 90％ and 30 ℃ or 20 ℃, 82.48％ and 63.01％. It was shown that humidity and temperature had a greater impact on the efficacy of B. subtilis B36 WP to Botrytis cinerea.%本文研究了温湿度对枯草芽胞杆菌B36菌株可湿性粉剂防治番茄灰霉病效果的影响.结果表明:枯草芽胞杆菌B36菌株可湿性粉剂在相对湿度90%时,对番茄灰霉病保护和治疗效果最高,分别达82.9%和61.63%;在相对湿度100%时,对番茄灰霉病保护和治疗效果最差,分别达32.87%和31.63 %.当相对湿度为90%,温度在30℃//20℃条件下,对番茄灰霉病的保护和治疗效果分别为82.48%和63.01%;温度在25℃//15℃条件下,对番茄灰霉病的保护和治疗效果分别为45.06%和23.85%.表明湿度及温度对枯草芽胞杆菌B36菌株可湿性粉剂防治番茄灰霉病的效果具有较大影响.