Influence of Glomus hoi-like inoculation and a concentrated speciesof AMF on sorghum plant development submitted or not to water stress

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Published: Jul 4, 2012
Keywords:
sorghum grain, vesicular arbuscularmicorrhyzae, fungi, drought stress

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Aracely Mena Echevarría
Instituto Nacional de Ciencias Agrícolas

Abstract

Arbuscular mycorrhizal fungi (AMF) not onlyinfluence plant growth and development, but also they toleratewater deficiencies and protect plants against different soilpathogens. The objective of this paper was to compare theeffect of two AMF inoculants (Glomus hoi-like and aconcentrated species, «Consorcio selva») on sorghum plantdevelopment and growth under water stress conditions. Toreach this goal, a greenhouse experiment was conducted undera randomized complete design, determining soil and leaf waterpotentials, stomatal conductance and photosynthetic rate atdifferent times, as well as plant height, stem diameter, dryweight, mycorrhizal colonization percentage and leafphosphorus content at the end of the experiment. In general,results showed a plant growth and development reductionunder water stress conditions, differently from mycorhizedtreatments, independently of water deficit. The highest valuesof morpho-agronomic variables were observed in thetreatments using concentrated species, whereas similarresponses were recorded in physiological variables. Plantsinoculated with concentrated species were the best thatendured water stress and recovered from it, which could beassociated to the occurrence of synergic effects among thespecies making them up, strengthening one to each other.

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How to Cite
Mena Echevarría, A. (2012). Influence of Glomus hoi-like inoculation and a concentrated speciesof AMF on sorghum plant development submitted or not to water stress. Cultivos Tropicales, 32(1), 11–17. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/49
Issue
Vol. 32 No. 1 (2011)
Section
Original Article

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