摘要
2001～2003年,对山东省蔬菜主产区保护地蔬菜根结线虫病的发生规律、危害程度进行系统调查,并对采集到的病田样本采用鉴别寄主法和会阴花纹形态观察法进行根结线虫种类鉴定。结果表明,山东省蔬菜主产区保护地蔬菜根结线虫病的发生已相当普遍,大棚总发病率达到67.6%,总病株率接近50%;4年以上以黄瓜、番茄等易感寄主为主要栽培模式的老棚的发病率接近95%,病株率为66%。南方根结线虫是山东省保护地蔬菜田中的绝对优势种群,病样中检出率为97.94%;其次是花生根结线虫1号小种。
During 2001～2003, systemic investigation on occurrence and damage of vegetable root-knot nematode diseases under protected cultivation was conducted in Shandong province. The results showed that vegetable root-knot nematode diseases in protected field existed universally. Nematode-infected plants were found in 67.6% greenhouses and the rate of totally diseased plants was 50%. In four or more years old of cucumber or tomato greenhouses, the rates of greenhouse and plant were even up to 95% and 66%, respectively. Identification host and perineal pattern techniques were used to identify the root-knot nematode species in the samples which were collected from infected fields. Meloidogyne incognita was the dominant species occurring under protected cultivation vegetable field in Shandong province. M. incognita populations were found in 97.94% samples, while M. arenaria race 1 populations were found in 7.73% samples. Moreover, most of the M. arenaria infected samples were co-infected with M. incognita, with only one exception.
出处
《莱阳农学院学报》
2004年第2期106-108,共3页
Journal of Laiyang Agricultural College
