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苹果霉心病主要为害北斗品种 ,还可为害红富士品种 ,并有逐年加重趋势 ,应引起广大果农高度重视。1 发病原因与规律 北斗早熟品种果实萼口宽大 ,萼筒长 ,组织较其它品种疏松 ,呈开放状态 ,果实萼洼至梗洼呈通透状态 ,这种果实结构为病菌通过萼心间组织进入心室为害创造了条件
Apple mold heart disease is mainly harmful to Beidou varieties, but also harmful Fuji species, and increasing trend year by year, should be caused by the majority of fruit farmers attach great importance. 1 pathogenesis and rules of the fruit of the Great Dipper precocious varieties of calyx mouth wide, calyx tube length, tissue looser than other varieties, was open, the fruit calyx depression to stem depression was transparent state, the fruit structure of the pathogenic bacteria through the calyx tissue into the ventricle Damage created the conditions