| 油茶5个物种苗期根结线虫病发生情况调查 |
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| 引用本文： | 邓力,卢德波,杜佩莲,韦维,叶航.油茶5个物种苗期根结线虫病发生情况调查[J].广西林业科技,2012(1):41-43. |
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| 作者姓名： | 邓力 卢德波 杜佩莲 韦维 叶航 |
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| 作者单位： | [1]广西国有维都林场,来宾546100 [2]广西林业科学研究院,南宁530002 |
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| 基金项目： | 广西自然科学基金项目（2010GXNSFB013030）; 广西科学研究与技术开发计划项目（桂科攻1123004-2A） |
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| 摘 要： | 对广西林科院油茶苗圃中普通油茶Camellia Oleifera、陆川油茶C.vietnamensis、南荣油茶C.nanyongensis、博白大果油茶C.gigantocarapa.和宛田红花油茶C.polyodonta共5个油茶物种的根结线虫病的发生情况进行调查,结果表明：普通油茶发病最为严重,病株率为100%,根结指数为53.8,通过鉴定,该线虫为南方根结线虫Meloidogyne incognita;南荣油茶和陆川油茶的发病情况较轻,病株率分别为23%和18%,根结指数分别为7.4和5.0;宛田红花油茶和博白大果油茶的病株率分别为4%和2%,根结指数分别为0.8和0.4,发病最轻。
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| 关 键 词： | 油茶 物种 苗期 根结线虫 |
Investigation of Root-knot Nematode in Five Oil-tea Species at Seedling Stage |
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| Authors: | DENG Li LU De-bo DU Pei-lian WEI Wei YE Hang |
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| Institution: | 1.Guangxi Weidu State Forest Farm,Laibin,Guangxi 546100,China;2.Guangxi Forestry Research Institute,Nanning 530002,China) |
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| Abstract: | Root nematodes in five oil-tea species（Camellia oleifera,C.vietnamensis,C.nanyongensis,C.gigantocarapa,and C.polyodonta） were investigated at the stage of seedling in seedling nursery of Guangxi Forestry Research Institute.The results showed that all C.Oleifera had root-knot nematodes and the gall index was 53.8.The pathogen was identified as Meloidogyne incognita.The ratios of presence to absence of root-knot nematodes in C.nanyongensis,C.vietnamensis,C.nanyongensis and C.vietnamensis were 23%,18%,4% and 2% respectively.The gall index of C.nanyongensis,C.vietnamensis,C.nanyongensis and C.vietnamensis were 7.4,5.0,0.8 and 0.4 respectively.C.Oleifera had the most root nematodes,nanyongensis and C.vietnamensis had less,and C.polyodonta and C.gigantocarapa had the least. |
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| Keywords: | oil-tea species seedling stage root-knot nematode |
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