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泡桐丛枝病是我省发生面积最大的林木病害。利用嫁接诱导的育苗方法,可以根本上减轻该病危害。根接当年苗木发病率为1.47%—4.28%,皮接第二代苗木发病率为2.30%—5.34%,而对照为0.83—1.01%。用经过根接苗木造林2年后发病率为0,经过皮接苗木造林2年后发病率为0—4.17%;而对照发病率为16.6%—18.8%。经过诱导处理,抗性差的苗期发病,不发病者产生较强抗病性。
Paulownia witches broom disease is the largest forest disease occurred in our province. The use of graft-induced seedling method can fundamentally reduce the risk of the disease. Root then the incidence of seedlings was 1.47% -4.28%, followed by the second generation seedling incidence of 2.30% -5.34%, while the control was 0.83-1.01%. After 2 years of afforestation with root seedlings, the morbidity was 0, and the incidence rate was 0-4.17% after 2 years of seedling seedling afforestation. The incidence of control was 16.6% -18.8%. After induction treatment, poor resistance to the disease at the seedling stage, those who do not have a strong disease resistance.