Resumen

UC-KU, Alma Gloria et al. Inoculation of arbuscular mycorrhizal fungi in the cultivation of Heliconia stricta. Rev. Mex. Cienc. Agríc [online]. 2019, vol.10, n.5, pp.1057-1069.  Epub 03-Mar-2020. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v10i5.1608.

The inoculation with arbuscular mycorrhizal fungi has allowed a controlled development and growth in horticultural species; however, its effect has not been evaluated in some tropical ornamental crops such as heliconias. The objective was to evaluate the application of arbuscular mycorrhizal fungi (AMF) in the development of Heliconia stricta, taking as a general hypothesis that the use of AMF increases the absorption of nutrients such as nitrogen, phosphorus, potassium and favor their acclimatization and growth. The physiological development of H. stricta plants was evaluated in response to their inoculation with four AMF: Rhizophagus intraradices, Zac-19, mixture of strains and native inoculum in Mexico. The height of the plants, number of buds, photosynthetic rate with an IRGA photosynthesis analyzer, LI-COR 6400XT and mycorrhizal colonization by the Phillips and Hayman method were determined. The results showed statistically significant increases due to the effect of the non-native inoculum, on the height of the plant, the number of buds per plant, the photosynthetic rate and mycorrhizal colonization (p≤ 0.05). The native inoculum produced statistically significant effects on the colonization of the roots (p≤ 0.05). It is concluded that there is a statistically significant beneficial effect (p≤ 0.05) of the mycorrhizal inoculation on the growth of the plants due to its higher height, number of buds per plant and photosynthetic rate.

Palabras llave : Heliconia stricta; inoculum; mycorrhizal colonization; photosynthetic rate.