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。
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.
出处
《广西林业科学》
2012年第1期41-43,共3页
Guangxi Forestry Science
基金
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)
关键词
油茶
物种
苗期
根结线虫
oil-tea
species
seedling stage
root-knot nematode
