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腐烂病是果树的主要病害,严重地威胁着果树生产,许多果园因此病而毁园砍树。根据多年气象资料分析和生产实践证明,引起腐烂病发生的主要原因是冻害。冻害之后往往带来腐烂病的大发生。 一、果树立地条件与冻害的关系 不同的品种抗寒性不同,同一品种不同树龄其抗寒性也不同。就是同一品种同一树龄由于所处的立地条件不同,其抗寒性即受到的冻害程度也不同。如1997年在吉林市
Rot disease is the main disease of fruit trees, which seriously threaten the production of fruit trees. Many orchards thus destroy the trees and cut down trees. According to many years of meteorological data analysis and production practice has proved that the main reason causing rot disease is frostbite. Frost damage often leads to the occurrence of rot disease. First, the conditions of fruit trees and frost damage Different varieties of cold resistance is different, the same species of different age their cold resistance is also different. Is the same species of the same age because of the different site conditions, the degree of frost resistance that is subject to frost damage is also different. As in 1997 in Jilin City