Deliopoulos T, Minnis S T, Jones P W, Haydock P P J
Nematology and Entomology Group, Crop and Environment Research Centre, Harper Adams University College, Newport, Shropshire, TF10 8NB, UK.
J Nematol. 2010 Mar;42(1):22-32.
Two experiments were conducted over 2 years in commercial potato fields in Shropshire, UK, to evaluate the compatibility of the nematicide aldicarb with commercial inocula of arbuscular mycorrhizal fungi (AMF) in the control of the potato cyst nematode Globodera pallida. The AMF used were Vaminoc (mixed-AMF inoculum), Glomus intraradices (BioRize BB-E) and G. mosseae (isolate BEG 12). In the absence of AMF, the in-soil hatch of G. pallida increased 30% (P < 0.01) from wk-2 to wk-4 after planting. Inoculation of physiologically-aged potato (cv. Golden Wonder) tubers with AMF eliminated this delay in G. pallida hatch by stimulating a mean increase of 32% (P < 0.01) in hatch within 2 wk after planting. In the aldicarb-treated plots in Experiment 1, G. pallida multiplication rate was 38% lower (P < 0.05) in roots of AMF-inoculated than noninoculated plants, but in Experiment 2, this effect was slightly lower (P = 0.07). In these plots, the single AMF inocula showed also a weak trend (P = 0.10) towards greater tuber yields relative to their noninoculated counterparts. Mycorrhization therefore appears to enhance the efficacy of carbamate nematicides against G. pallida and consequently more research is proposed to validate these findings and fully explore the potential of this model.
在英国什罗普郡的商业马铃薯田进行了为期两年的两项试验，以评估杀线虫剂涕灭威与丛枝菌根真菌（AMF）商业接种剂在防治马铃薯孢囊线虫苍白球孢囊线虫方面的兼容性。使用的AMF为Vaminoc（混合AMF接种剂）、根内球囊霉（BioRize BB-E）和摩西球囊霉（分离株BEG 12）。在没有AMF的情况下，种植后第2周（wk-2）至第4周（wk-4），苍白球孢囊线虫的土壤孵化率增加了30%（P<0.01）。用AMF接种生理老化的马铃薯（品种为黄金奇迹）块茎，通过在种植后2周内刺激孵化率平均提高32%（P<0.01），消除了苍白球孢囊线虫孵化的延迟。在试验1中涕灭威处理的地块中，接种AMF的植物根部苍白球孢囊线虫的繁殖率比未接种的植物低38%（P<0.05），但在试验2中，这种效果略低（P = 0.07）。在这些地块中，相对于未接种的对照，单一的AMF接种剂也显示出块茎产量更高的微弱趋势（P = 0.10）。因此，菌根化似乎提高了氨基甲酸酯类杀线虫剂对苍白球孢囊线虫的防治效果，因此建议进行更多研究以验证这些发现并充分探索该模式的潜力。
