论文部分内容阅读
采用田间试验诱导苹果品种‘短枝金冠’发生苦痘病。从盛花后5天开始,结果短枝每10天喷布一次1%《重量/体积)氯化钙和1%氯化镁,或用深色纸袋遮光。喷布氯化镁和套袋+氯化镁处理对结果短枝的效应量;苦痘病发病率上升,果实含钙量下降,含镁和含钾量增加,且短果枝数减少。套袋果实与对照相比,苦痘病发病率增加了三倍,而且果实含钙量与单果重明显下降。相反,喷布氯化钙使苦痘病稍有减少,果实钙含量增加,含镁量下降,短果枝结果数增多。苦痘病发病率为8%(仅喷布氯化钙)到88%(套袋+氯化镁处理)。一般来说,套袋和阳离子喷布相结合可以诱发苹果果实产生很高的苦痘病发病率,这些果实能够用于对该病害的研究。
Field trials were used to induce bitter pox disease in apple varieties ’Shijianguanguan’. Five days after full bloom, the shoots are sprinkled with 1% “w / v” calcium chloride and 1% magnesium chloride every 10 days or shaded in dark paper bags. The effect of spraying magnesium chloride and bagging + magnesium chloride on the results of spur; the incidence of bitter pit disease increased, the calcium content of fruit decreased, the content of magnesium and potassium increased, and the number of short fruit branches decreased. Bagging fruit compared with the control, the incidence of bitter pit disease increased threefold, and the fruit calcium content and fruit weight decreased significantly. On the contrary, spraying calcium chloride slightly reduced bitter pit disease, increased calcium content in fruit, decreased magnesium content and increased the number of short fruit branches. Bitter pit disease incidence of 8% (only sprayed calcium chloride) to 88% (bagging + magnesium chloride treatment). In general, the combination of bagging and cationic spray can induce a high incidence of bitter pit in apple fruit, which can be used to study the disease.