论文部分内容阅读
1986以来,先后调查了湖南沅江、江西宜春、九江、永丰及奉新、安徽芜湖及萱城、浙江临海和广西桂林等市(县)的苎麻根腐线虫病,鉴定了苎麻根样32份及其土样32份。除江西奉新县外,在其它各市(县)都查到同一短体线虫,带虫根样和土样分别占供检根样和土样的63%和66%。根据这种线虫的测量值和其雌虫唇环2个、后阴子宫囊较长(22—52μm)并可分化以及雌虫尾端常平(斜)截或有时出现一凹痕等形态特征,鉴定为咖啡短体线虫Pratylenchus coffeae(Zimmermann,1898)& Filipjev Sc-huurmans Stekhoven,1941。它与过去国内报道该病的优势病原即穿割短体线虫Pratylencbus pene-trans(Cobb,1917)Filipjev & Schuurmans Stekhoven,1941不同。
Since 1986, he has investigated ramie root rot nematodes in Yuanjiang, Hunan, Yichun, Jiujiang, Yongfeng, Fengxin, Wuhu and Xuancheng in Anhui province, Linhai in Zhejiang province and Guilin in Guangxi province, and identified 32 samples of ramie root samples And 32 samples of its soil. Except for Fengxin County in Jiangxi Province, the same nematodes were found in all the other cities (counties). The root-like samples and soil samples accounted for 63% and 66% of the total samples taken for inspection. According to the measured values of this nematode and its females lip ring 2, the posterior vaginal capsule is longer (22-52μm) and can be differentiated and the female tail often flat (oblique) cut or sometimes a dent and other morphological characteristics, It was identified as Pratylenchus coffeae (Zimmermann, 1898) & Filipjev Sc-huurmans Stekhoven, 1941. It is different from the previously reported Pratylencbus pene-trans (Cobb, 1917) Filipjev & Schuurmans Stekhoven, 1941, the dominant source of the disease in the country.