Growth and mycorrhizal colonization of the tomato IPA06 inoculated with arbuscular mycorrhizal fungi on organic substrate

Abstract

Tomato IPA06 is a variety that presents fruits resistant to transport and adapted to the rustic cultivation, whose interaction with arbuscular mycorrhizal fungi (AMF) has not yet been found in the literature. The objective of this work was to evaluate the growth and colonization of the IPA06 tomato cultivated with AMF in organic substrates. The experimental design was completely randomized by the cultivation of the IPA06 tomato in five treatments (control - without fungal inoculum and four mycorrhizal fungi inoculants: UFLA05 - Gigaspora albida, UFLA351 - Rhizoglomus clarum, UFLA372 - Claroideoglomus etunicatum and UFLA401 - Acaulospora morrowiae), in organic substrate, with 10 replicates. The AMFs inoculated influenced in the germination period. The use of organic substrate does not inhibit tomato colonization by AMFs. The mycorrhizal colonization of the IPA06 tomato does not guarantee an increase in the vegetal biomass, but it favors the precocity in the flowering, being responsive to the isolates UFLA351 and UFLA401 that can be used as inoculants for organic cultivation.