... 腐烂率 rotting rate 易腐烂 putrescibility ; perishably 腐烂病 Valsa mali ; Valsa sordida ; Apple valsa canker ; Valsa ambiens ...
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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。
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。
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