Premium
PLANT GROWTH RESPONSES TO VESICULAR‐ARBUSCULAR MYCORRHIZA
Author(s) -
SCHUBERT A.,
HAYMAN D. S.
Publication year - 1986
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1986.tb00598.x
Subject(s) - glomus , mycorrhiza , biology , symbiosis , microbial inoculant , endophyte , inoculation , arbuscular mycorrhiza , mycorrhizal fungi , hypha , phycomycetes , arbuscular mycorrhizal , botany , horticulture , bacteria , genetics
SUMMARY Several vesicular‐arbuscular mycorrhizal endophytes were inoculated separately on to onion plants in soils of low P status amended with five rates of Ca(H 2 PO 4 ) 2 . H 2 O. Mycorrhizal infection was usually decreased by increasing additions of P, but the rate of root colonization and the infection plateau varied with different endophytes. Plant growth responses to mycorrhiza were large at low and medium P with Glomus mosseae and Glomus epigaeum and at medium P with Glomus macrocarpum and Gigaspora margarita. Glomus caledonium and Glomus sp.‘E3’were generally effective at low, medium and high P. Glomus clarum was ineffective at low P. The correlation between infection and growth response was higher for some endophytes than others. It was concluded that analysis of the VA symbiosis with any single endophyte cannot always be used as a basis for generalization about VA mycorrhizal fungi, and that the selection of field inoculants should take special account of endophyte behaviour in soils given extra phosphate.