Growth effects of the vesicular-arbuscular mycorrhizal fungusGlomus constrictum on maize plants in pot trials

摘要: Maize plants were inoculated withGlomus constrictum in soil of low phosphorus content amended with five rates P the form Ca3(PO4)2. dry matter yield was increased by addition up to 30 and/or 60 mg P/kg soil, above that it began decrease reach at 100 a value similar control. At all levels used, shoot and root (total plant) mass significantly compared non-inoculated controls this increment ranged some cases between 50 70%. Development vesicular-arbuscular mycorrhizal fungus (VAM) monitored terms contents maize revealed not withG. influenced soil. On other hand, VAM dramatically increasing maximum P; decline. Mycorrhizal infection (expressed as percentage length infected) concentrations basal level 80 where infected 72% total after 28 d planting. The increase spore formation except highest number sieved from