valsa canker of apple的意思|示意
苹果溃疡病
valsa canker of apple的网络常见释义
苹果树腐烂病 【摘要】： 苹果树腐烂病(valsa canker of apple)是由黑腐皮壳属Vasla spp.真菌(无性型为壳囊胞属Cytospora spp.
valsa canker of apple相关例句
The effects of S-921 strain (Streptomyces aureus) and its fermented broth on apple tree canker, Valsa mali, were tested by plating and free culture methods.
采用平板和离体培养法测定S-921菌株及其发酵液对苹果树腐烂病菌的作用。
It was revealed in an extensive survey that the occurrence of apple Valsa canker (Valsa ceratosperma) is correlated negatively with potassium content in bark.
矫治试验结果表明，春季增施钾肥，可提高树皮含钾量并减轻腐烂病发生程度。