Abstract
Arbuscular mycorrhizal fungi (AMF) support plant development, however, symbiosis depends on species of both symbionts. This study aimed to evaluate the interaction between rootstock citrus inoculated with species of arbuscular mycorrhizal fungi. Three rootstocks citrange ‘Fepagro C37 Reck’ [Poncirus trifoliata (L.) Raf. x Citrus sinensis (L.) Osbeck.], ‘Hong-Kong’ kumquat (Fortunella hindsii Swingle) and ‘Trifoliata’ (Poncirus trifoliate) were tested, inoculated with two species of AMF (Glomus etunicatum W.N. Becker & Gerd.and Acaulospora sp.) and a treatment not inoculated. We evaluated the height (cm), stem diameter (mm), leaf area (cm² / plant), leaf number, fresh and dry root and shoot weight (g), the level of reserves in tissues and the colonization of AMF in the roots. The species G. etunicatum and Acaulospora sp. colonized the roots of rootstocks, but they were only eff ective for ‘Fepagro C37 Reck’. Poncirus trifoliata had the highest vigor in the absence of AMF.
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