农药对烟草AM真菌接种效应的影响

AM真菌能与烟草根系形成良好的共生关系，促进宿主生长，提高烤烟品质和产量，施用农药是否会影响AM真菌对烟草的接种效应，尚无定论，本研究用AM真菌Glomus mosseae对烟草植株进行接种，按正常施用量喷施不同种类的农药，通过对AM真菌侵染率，烟草根系活力，土壤孢子数量等的测定。研究喷施农药对AM真菌接种效应的影响。以便为菌根化烟草生产提供依据。

Effect of spraying agricultural chemical on tobacco inoculated with AM fungi

Arbuscular mycorrhizal(AM) fungi can establish a good symbiotic relationship with tobacco roots, thus facilitate its growth and improve quality of the host. It is an impending problem to ascertain whether spraying agricultural chemical has effects on the tobacoo inoculated AM fungi.This research inoculated with Glomus mosseae fungi tobacco on which had sprayed with various kinds of agricultural chemical.The infection rate of AM fungi,the vigor of the root system and the No.of soil spores were measured. According to all these indexes,we assayed the effect of spraying agricultural chemical on tobacco inoculated with AM fungi,which could be used as a guide to producing tobacco.