摘要
试验采用人工喷雾接种方法，通过对接种体浓度、保湿时间和苗龄试验，摸索出了一套适合于菜心炭疽病苗期抗病性鉴定的方法，即在气温为２３～３２℃范围内，用６×１０６～１×１０７个／Ｌ的分生孢子悬浮液于３～４片叶期接种，保湿２４～４８ｈ，７ｄ后调查病情。
A technique suitable for identification of resistance to anthracnose of Brassica parachinensis in seedling stage was proposed by testing inoculum concentrations, moisture preservation times and seedling ages and using artificial spray inoculation method. That is, while in the temperatures ranged from 23 to 32 ℃, the suspensions of 6×10 6～1×10 7 conidia/L were sprayed to the seedlings with three to four leaves,and the moisture was kept for 24 to 48 hours. In seven days after treatment, the disease severity was investigated. It was showed that the technique could be easy to distinguish the resistant differences in different varieties of Brassica parachinensis
出处
《华南农业大学学报》
CAS
CSCD
北大核心
1998年第3期47-50,共4页
Journal of South China Agricultural University
基金
广州市科委"九五"科技攻关项目
广东省高等学校博士后科学研究经费资助
关键词
蔬菜
菜心
炭疽病
抗病性鉴定
苗期
Brassica parachinensis
anthracnose
identification of desease resistance
