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长李 １７号是早熟李的优良品种，但易感缩果病，花后喷硼可以减轻发病率，且提高座果率。初步鉴定发病原因为生理病害。
Changli No. 17 is an excellent variety of precocious plum, but susceptible fruit shrinkage, post-inflorescence can reduce the incidence of boron, and improve the rate of fruit set. The initial identification of the pathogenesis of physiological diseases.