摘要
利用1985年秋至1986年冬五次田间实验数据,以病样方率、每样方平均病株数、扩散系数和聚块性指标等参数分析了小白菜花叶病病株田间分布类型。结果表明,小白菜花叶病病株在田间为随机分布或均匀分布,不产生聚集现象。
The spatial distribution of Chinese small cabbage(pak-choi)mosaic disease was analyzed based on experiments performed from the fall of 1985 to the winter of 1986)the results showed that the distribution pattern of diseased plants was random distribution or even distribution in the field and neither disease focus nor gradient was found.
出处
《华南农业大学学报》
CAS
CSCD
1989年第2期48-53,共6页
Journal of South China Agricultural University
关键词
小白菜
花叶病
空间分布
病毒
Brassicae chinensis,Epidemiology,Spatial distribution,TuMV,CMV
