Abstract

SIMO-GONZALEZ, Jaime E.; RUIZ-MARTINEZ, Luis A.  and  RIVERA-ESPINOSA, Ramón. Inoculation of arbuscular mycorhizal fungi (AMF) and Brown soil-organic fertilizers ratio in the acclimatization of banana vitroplants. cultrop [online]. 2017, vol.38, n.3, pp. 102-111. ISSN 1819-4087.

From the feasibility and benefits of inoculation of efficient strains of arbuscular mycorrhizal fungi in different cultures and mycotrophic character of bananas, this work was establish ratio soil: compost optimal ratios (S:AO, according its acronyms in English) for effective mycorrhization in the acclimatization phase of in vitro banana plants of banana cv. ‘FHIA-18’ (AAAB) in Fluffy brown carbonated soil. Four AMF strains, two sources of organic fertilizers (vermicompost and compost) and five S:AO ratio: 100 % soil, 3:1, 1:1, 1: 3 and 100 % AO were studied, using a Completely Randomized design. The experiment was performed in bags of 0,5 kg and it was repeated twice and in any of the ratio studied. The pH ranged between 7,3 and 7,8. A positive and reproducible response to Rhizoglomus intraradices (INCAM-11) inoculation were found after two years on growth, nutritional status, survival and mycorrhizal plant functioning with a significantly higher performance than other  AMF inoculated strains. Also, the effects were dependent of the ratio S:AO, being obtained the biggest benefits in presence of the relationships 1:1 and 1:3, inferior quantities of AO limited the operation mycorrhizal  and superiors inhibited it. No differences were found between AO sources studied. The use of R. intraradices (INCAM-11)straim in presence of the ratio 1:1 S:AO diminished in 50 % the content of AO of the effective recommendation for the acclimatization of banana vitroplants

Keywords : adaptation; composts; humus; vesicular arbuscular mycorrhizae.

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