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Revista Ceres

Print version ISSN 0034-737X


NUNES, José Luis da Silva; SOUZA, Paulo Vitor Dutra de; MARODIN, Gilmar Arduino Bettio  and  FACHINELLO, José Carlos. Development increase of 'Okinawa' peach rootstocks by indigenous arbuscular mycorrhizal fungi. Rev. Ceres (Impr.) [online]. 2011, vol.58, n.2, pp.223-231. ISSN 0034-737X.

Arbuscular mycorrhizal fungi (AMF) are common rhizosphere organisms that are associated with plant roots, improving nutrient absorption and stimulating their growth. This work aimed to evaluate the influence of three AMF species (Gigaspora margarita, Glomus clarum e Glomus etunicatum) on the vegetative growth, nutrients absorption and carbohidrate accumulation on peach rootstocks cv. Okinawa (Prunus persica). The experimental desing was the one of randomized blocks, four plots per treatment and fifteen plants per plot. Plants inoculated with G. etunicatum presented larger stem height, stem diameter, foliar area, fresh and dry shoot biomass, total of nutrients absorbed and carbohidrate accumulated, while those inoculated with G. clarum induced an intermediate growth, higher to those inoculated with G. margarita that presented results similar to the non inoculated plants. Plant growth performance was related to colonization taxes, which were, respectively, 93%, 91% and 37% to G. etunicatum, G. clarum and G. margarita inoculated plants respectively.

Keywords : Prunus persica (L.) Batsch; endomycorrhizaes; plant nutrition; growth.

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