论文部分内容阅读
根据不同的接种方法、接种物浓度、保湿时间和温度对豇豆锈病(Uromycesvignae)苗期抗病性表现的影响,筛选出一套方便、可行的苗期抗病性鉴定技术:即在20~30℃温度下,用每视野含对个孢子(10×16倍)的夏孢子悬浮液于1~2片复叶时喷雾接种,保湿18~24h,接种后10~14d调查21个供试品种的病情指数,结果表明品种间抗病性差异显著.其中,益农红仁特长豆角表现免疫,金山长豆和成都紫荚白露表现为高抗.
According to the effects of different inoculation methods, inoculum concentration, moisturizing time and temperature on the disease resistance of seedling stage of cowpea rust (Uromycesvignae), a set of convenient and feasible seedling disease resistance screening techniques were screened out: ℃ temperature, with each field contains a spore (10 × 16 times) of the summer spore suspension in 1 to 2 leaves when the compound spray spray, moisturizing 18 ~ 24h, 10 ~ 14d after inoculation of 21 tested varieties Disease index, the results showed that the significant difference between the disease resistance. Among them, the beneficiary red bean special long beans immune, Jinshan long beans and Chengdu purple pod white show high resistance.