CAJ | 학술논문

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。
대엄서림과원유다묘포중보통유다Camellia Oleifera、륙천유다C.vietnamensis、남영유다C.nanyongensis、박백대과유다C.gigantocarapa.화완전홍화유다C.polyodonta공5개유다물충적근결선충병적발생정황진행조사,결과표명：보통유다발병최위엄중,병주솔위100%,근결지수위53.8,통과감정,해선충위남방근결선충Meloidogyne incognita;남영유다화륙천유다적발병정황교경,병주솔분별위23%화18%,근결지수분별위7.4화5.0;완전홍화유다화박백대과유다적병주솔분별위4%화2%,근결지수분별위0.8화0.4,발병최경。
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.