By the investigation on the occurrence dynamic of jujube fruit shrink disease, its occurrence regulation was analyzed.The jujube fruit shrink disease was divided into different grades.

  • 摘要通过调查几个枣树品种缩果病动态,对冬缩果病发病规律进行了分析,并将缩果病进行了病害分级。
目录 查词历史