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Revista Chapingo. Serie horticultura

versión On-line ISSN 2007-4034versión impresa ISSN 1027-152X

Resumen

MEDINA, Carlos Vilcatoma et al. Mycorrhizal fungi and phosphate fertilization in the formation of seedlings of vine rootstock ‘IAC-766’ Campinas. Rev. Chapingo Ser.Hortic [online]. 2023, vol.29, n.2, pp.33-46.  Epub 04-Dic-2023. ISSN 2007-4034.  https://doi.org/10.5154/r.rchsh.2022.05.008.

Arbuscular mycorrhizal fungi (AMF) are beneficial microorganisms that form symbioses with vines, showing improvements favorably in the growth and nutrition of seedlings after rooting them. This work aimed to evaluate the effects of AMF species inoculation and phosphate fertilization on rooted cuttings of vine rootstocks in a greenhouse. Woody rootstock cuttings from ‘IAC 766’ Campinas vines were prepared to promote rooting. After 45 days, the cuttings were transplanted and subjected to treatments that consisted of the inoculation of different species of AMF and fertilization with two doses of phosphorus (simple superphosphate) plus the control. The treatments were randomly assigned following a completely randomized design with eight replications for each treatment. After 90 days, growth parameters, macro and micronutrient content (shoot and root), root colonization and mycorrhizal effect of the extracted nutrients were evaluated. The inoculation with AMF species influenced the growth parameters, root colonization and extraction of macro and micronutrients from the cuttings of the 'IAC 766' rootstock, highlighting the inoculation with species of the genus Acaulospora, either individually or associated. Phosphorous fertilization affected growth parameters and extraction of macro and micronutrients, but these were to a lesser degree compared to that verified by the inoculation of AMF species.

Palabras llave : cuttings; microorganisms; inoculation; nutrients; growth.

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