摘要
在宁夏灌区,春小麦白粉病菌(Erysiphe graminis f.sp.tritici)的分生孢子在-3-29℃温度范围都可萌发。温度达33℃时不能萌发,最适温度为10—15℃。分生孢子虽然在0—100%的湿度下都可以萌发。但以饱和湿度最适。紫外光对分生孢子有强烈的杀伤作用。直射阳光对分生孢子的萌发有抑制作用;在散射光和黑暗条件下,孢子的萌发率没有显着差异。
In Ningxia irrigated area, the conidiospores of Erysipe graminis f. sp. tritici on spring wheat germinated at -3 -- 29℃ (optimum 10 — 15℃). At 33℃, no conidium germinated, although the conidiospores might germinate in the relative humidity of 0—100%, yet they did best in a saturated atmosphere. Ultra-violet light killed the conidiospores. Under the direct solar radiation the percenta ge of germination was 13.86%, in the diffused light, 34.33%, in the darkness, 38.57%.
出处
《微生物学通报》
CAS
CSCD
北大核心
1993年第2期77-80,共4页
Microbiology China
关键词
春小麦
白粉病菌
分生孢子
萌发
Spring Wheat
Powdery Mildew
Conidiospores
Germination
