Mycorrhizal inoculation of a barley crop in the field

摘要

Barley (Hordeum vulgareL. cv.#x2018;Zephyr#x2019;) was grown in small field plots with or without a layer ofGigaspora margaritaorGlomus tenuisinoculum soil placed below the seed. G.margaritainoculation greatly increased mycorrhizal infection levels in the roots, vegetative growth, and N and K concentrations in plants before flowering. Vegetative growth response toG.margaritainoculation decreased from 92 to 25 as grain filling proceeded, and nutrient levels greatly decreased in mycorrhizal and non-mycorrhizal plants. There was no response to inoculation withGlomus tenuis.