陕西关中地区猕猴桃溃疡病调查初报

The Investigation of Kiwifruit Bacterial Canker in Guanzhong Zone of Shaanxi Province

通过对陕西关中（杨凌、周至、眉县）地区13个村65个猕猴桃园的猕猴桃溃疡病发病特点调查分析,发现树龄、品种与猕猴桃溃疡病的发生直接相关,表现为随着树龄的增大溃疡病危害逐渐加重（3-14 a生）;3个主栽品种（秦美、亚特和海沃德）中海沃德最感病。地区之间猕猴桃溃疡病严重程度存在着不同程度的差异,除地区间小气候外,管理水平和灌溉水平均为影响溃疡病发生的重要因素。

The factors which lead to kiwifruit bacterial canker were investigated in 65 orchards of 13 villages in Guanzhong area in Shaanxi province. The result showed that there is a direct relation between the age of the kiwi fruit trees and the degree of the disease. With the age of the kiwi fruit tree increases, the percent of the disease has a raising trend（3to14 years）. In addition, different varieties are also the important reasons that lead to the disease. And different areas have different disease degree. The ways of management and irrigation affect the degree of the disease obviously except the climate condition of the fields.