黑龙江东部垦区苹果树腐烂病现状调查研究

Investigation on the Current Situation of Apple Rot Disease in Eastern Reclamation Area of Heilongjiang Province

[目的]明确黑龙江东部垦区苹果腐烂病的发病规律及特点。[方法]以黑龙江省红兴隆管局五九七农场林果业基地为样地,调查不同品种的苹果树腐烂病的发病情况,并分析腐烂病的相关影响因素。[结果]共调查苹果树8 272株,其中123果树3 256株,K9果树3 096株,农冠果树1 920株,平均发病率分别为32.68%、30.99%、33.44%。苹果树腐烂病主要发生在果树的主干处和向阳侧,苹果树腐烂病的发生情况与冻害、树龄、养分、树势、管理水平等因素有关。[结论]试验结果为苹果腐烂病的防治与预防提供了参考。

[ Objective ] To research the occurrence regularity and characteristics of apple rot disease in eastern reclamation area of Heilongjiang Province. [ Method ] With horticulture base of 597 Farm in Heilongjiang Province as a case,incidence of rot disease of different apple varieties was investigated. Relevant influencing factors of rot disease were analyzed. [Result] Among the 8 272 apple trees in the base,123 ,K9 and Nongguan had 3 256, 3 096 and 1 920 plants ,respectively. Their average incidence rates were 32.68% ,30.99% and 33.44%. Apple rot disease mainly ap- peared on the trunk and sunny side. Its occurrence was affected by the freeze injury,tree age,nutrient,tree vigor,management level and so on. [ Conclusion] This research provides references for the control and prevention of apple rot disease.