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首页> 外文期刊>Annual Review of Phytopathology >Reniform in US cotton: When, where, why, and some remedies
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Reniform in US cotton: When, where, why, and some remedies

机译：美国棉花中的肾形：何时，何地，为什么以及一些补救措施

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摘要

The reniform nematode, Rotylenchulus reniformis, is an emerging problem in U.S. cotton. The impact of this nematode and the extent to which it has and will continue to spread across the U.S. cotton belt are controversial. Long-term changes in cotton production and unique biological attributes of R. reniformis are key factors. Expert opinion surveys indicate that R. reniformis has replaced the root-knot nematode (Meloidogyne incognita) as the major nematode of cotton in Mississippi, Louisiana, and Alabama. In neighboring states the incidence of heavily infested fields has increased during the past 10 years. Estimated annual loss to the U.S. cotton crop is $130M. Crop rotation and nematicides can reduce losses. Introgression of genetic resistance from primitive accessions of other cotton species offers the most promising opportunity to effectively control this pathogen in the long term. Laboratories in several institutions are currently pursuing this goal, with the promise of resistant cultivars adapted to U.S. cotton production regions within three years.
机译：肾形线虫轮虫轮虫（Rotylenchulus reniformis）是美国棉花中新出现的问题。这种线虫的影响及其在美国棉带上将继续扩散的程度一直存在争议。棉花产量的长期变化和肾形紫罗兰的独特生物学特性是关键因素。专家意见调查表明，在密西西比州，路易斯安那州和阿拉巴马州，R。reniformis代替根结线虫（Meloidogyne incognita）成为棉花的主要线虫。在过去的10年中，邻近州的重灾区发生率有所增加。美国棉花作物的年度损失估计为1.3亿美元。轮作和杀线虫剂可以减少损失。从其他棉花品种的原始种质中获得的遗传抗性渗入为长期有效控制这种病原体提供了最有希望的机会。目前有几个机构的实验室正在追求这一目标，并承诺在三年内将抗性品种适应美国棉花生产地区。

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