In order to determine the control potential of Paecilomyces variotii extract named ZNC against tomato root-knot nematode disease,this paper conducted pot culture experiment and took water as the contrast to study the effects of applying ZNC(root-irrigation:0.5 or 1.0 μg per plant),abamectin(basal application:5 mg per plant)and their combinations on tomato growth and fruit quality,their control effects on root-knot nematode disease,respectively.The results showed that comparing with water treatment,ZNC could significantly increase tomato root fresh weight and reduce root nodes number,at the same time significantly increase tomato leaf length and width,raise tomato plant height,above ground fresh weight,and promote plant antioxidant capacity and fruit quality.The control effect of ZNC combined with abamectin against tomato root-knot nematode disease could reach 88.89%,significantly higher than that of applying abamectin alone.Meanwhile,tomato growth conditions and fruit quality were all got promoted.These facts indicated that ZNC could promote tomato growth,improve control effect against tomato root-knot nematode disease when combined with abamectin.
关键词
宛氏拟青霉提取物/ZNC/阿维菌素/根结线虫/防治效果/促生
Key words
Paecilomyces variotii extract/ZNC/avermectin/root-knot nematode/prevention and control effect/growth promotion
维普
万方数据