| 小杆线虫(Rhabditis sp.)对温室黄瓜根际植物寄生线虫的抑制作用 |
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| 引用本文： | 曹海锋,刘奇志,谢文闻,曹静,李丽.小杆线虫(Rhabditis sp.)对温室黄瓜根际植物寄生线虫的抑制作用[J].植物病理学报,2007,37(2):210-213. |
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| 作者姓名： | 曹海锋 刘奇志 谢文闻 曹静 李丽 |
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| 作者单位： | 1 中国农业大学昆虫系, 北京 100094;2 河南省开封市通许县政府, 通许 475400 |
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| 基金项目： | 国家高技术研究发展计划(863计划);河南省科技攻关项目 |
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| 摘 要： | 近年来，随着我国温室黄瓜复种指数的增大，线虫病害日趋严重。植物线虫不仅本身直接危害植物根系，导致黄瓜减产20％～50％，还常诱发一些病菌的侵害。根结线虫（Meloidogyne spp．）是温室黄瓜发生较严重的一种植物线虫，在常规栽培管理条件下，矮化线虫（Tylenchorhynchus spp．）也具有相当高的种群密度。
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| 关 键 词： | 温室黄瓜 小杆线虫 植物寄生线虫 spp 抑制作用 根际 植物线虫 复种指数 |
| 文章编号： | 0412-0914(2007)02-0210-04 |
| 修稿时间： | 2006年1月10日 |
Suppression of Rhabditis sp. on plant parasitic nematodes of cucumber in greenhouse |
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| CAO Hai-feng,LIU Qi-zhi,XIE Wen-wen,CAO Jing,LI Li.Suppression of Rhabditis sp. on plant parasitic nematodes of cucumber in greenhouse[J].Acta Phytopathologica Sinica,2007,37(2):210-213. |
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| Authors: | CAO Hai-feng LIU Qi-zhi XIE Wen-wen CAO Jing LI Li |
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| Institution: | 1 Department of Entomology, China Agricultural University, Beijing 100094, China;2 Tongxu County, Kaifeng City, Henan Province, Tongxu 475400, China |
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| Abstract: | Rhabditis sp. Bn strain was the first time found suppressive on plant parasitic nematodes (PPNs) in the rhizosphere of greenhouse cucumber. The nematode Bn was applied into soil at the rate of 1.0×1010 Juveniles/hm2 10 days before cucumber plants being planted in October 2004 and then once a month as treat-ment. The same volume of tap water was used as control. The density of PPNs increased sharply in control and reached 1 561 Js/100 mL soil in April, whereas it was less than 400 Js/100 mL soil in treatment, signifi-cantly lower than that of control (P<0.01). The densities of PPNs, Meloidogyne spp. and Tylenchorhynchus spp. were reduced by 70% and 87% respectively by applying Rhabditis sp. Bn strain. The root-knot index of cucumber in treatment was also reduced significantly (P<0.05) in April 2005. |
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| Keywords: | Rhabditis sp suppression plant parasitic nematodes |
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