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首页> 外文期刊>Plant Disease >First report of verticillium wilt of gold kiwifruit, Actinidia chinensis cv. Hort 16A, caused by Verticillium albo-atrum in Chile.
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First report of verticillium wilt of gold kiwifruit, Actinidia chinensis cv. Hort 16A, caused by Verticillium albo-atrum in Chile.

机译：猕猴桃金黄色猕猴桃黄萎病的首次报道。 Hort 16A，由智利的黄萎病菌引起。

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摘要

Gold kiwifruit, Actinidia chinensis cv. Hort 16A, was first planted in Chile in 2003 and vines started dying within 2 years. By the end of 2007-08 growing season, as much as 80% of the plants in several orchards had died. The disease was characterized by a conspicuous reddish brown discoloration of the xylem and the sudden wilting and dieback of plants any time during the growing season. In spring, entire plants or parts of plants failed to break buds. In others, the buds broke, but juvenile leaf clusters then wilted and died. On severely affected plants, scion water-shoots wilted and died. The disease was often accompanied by shallow cracking of the bark and slight sponginess of the underlying cortex. The disease was apparently most severe in sites that had been planted to Gold kiwifruit immediately after removal of apple, pear, citrus, or grape. Orchards planted following long term maize, wheat or grass culture were almost disease free. The pathogen was identified as V. albo-atrum based on morphological and molecular observations, and pathogenicity tests. This is thought to be the first report of V. albo-atrum causing wilt and dieback on Gold Kiwifruit cv. Hort 16A.
机译：金奇异果，中华猕猴桃 cv。 Hort 16A于2003年首次在智利种植，葡萄藤在2年内开始死亡。到2007-08年生长季节结束时，几个果园中多达80％的植物已经死亡。该病的特征是木质部明显红棕色变色，在生长季节的任何时间植物突然枯萎和枯死。在春季，整个植物或植物的一部分都没有断芽。在另一些中，芽破裂了，但是幼叶簇随后枯萎而死亡。在受严重影响的植物上，接穗水枝枯萎并死亡。该病常伴有树皮浅裂和底层皮层的轻微海绵状。该病显然是在除去苹果，梨，柑橘或葡萄后立即种植金奇异果的地方最严重的。长期种植玉米，小麦或草后种植的果园几乎无病。病原体被鉴定为V。基于形态学和分子观察以及致病性测试的白化病。这被认为是 V的第一份报告。 albo-atrum 会导致金奇异果（Gold Kiwifruit）简历枯萎和死亡。霍特16A。

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