In:
Revista Latinoamericana de Biotecnología Ambiental y Algal, Springer Science and Business Media LLC, Vol. 6, No. 2 ( 2015-12)
Abstract:
This research aimed to isolate and evaluate the effect of eight mycorrhizal consortiums on two growth stages of Jatropha curcas L. variety CEPROBI under greenhouse conditions. Six fungal consortiums were isolated from the rhizosphere of adult productive plants of J. curcas growing at Yucatan and Morelos states in Mexico, while two consortiums were isolated from rhizospheres of pineapple (Oaxaca state) and maize (Tabasco state) plants. A four month-kinetic seedling growth was performed regarding height, stem diameter and number of leaves. Evaluation of length and diameter of main, secondary and fine roots, and fungal colonization was also done. At one-year old plant growth, height, diameter of steam, foliar N, P, K and micronutrients (Zn +2 and Cu +2 ) concentrations was analyzed. In the first four months of growth, Oaxaca fungal consortium promoted height and length of fine roots of J. curcas (323%); while Tabasco consortium increased diameter stem (23%) and the length of fine roots (340%) as compared to non-inoculated plants. No significant effects were observed on number of leaves, length and diameter of main roots or secondary root number. Mycorrhizal colonization percentages were not related with the plant effects. In one-year old plants, the fungal consortium Merida 1 increased plant height (119%), followed by Mérida 2, Morelos 3, Tabasco and Oaxaca consortiums; while, Mérida 4 fungal consortium enhanced stem diameter (142%). Inoculation of J. curcas with mycorrhizal consortiums increases plant growth; however its effect on production, yield and quality of oil should be studied under field conditions.
Type of Medium:
Online Resource
ISSN:
2007-2570
DOI:
10.7603/s40682-015-0005-2
Language:
Spanish
Publisher:
Springer Science and Business Media LLC
Publication Date:
2015
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