Effectiveness of selected microbial strains on the growth of sweet sorghum

Díaz-Franco, A. and Grageda-Cabrera, O.A. and Lozano-Contreras, M.G. (2015) Effectiveness of selected microbial strains on the growth of sweet sorghum. Agricultural Sciences, 6. pp. 772-777.

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Abstract

Microbial inoculants are of great importance in agro-ecology and plants. However, the symbiotic effectiveness of strains may vary between species or within the same species. Aim of the study was to select experimental microbial strains of national origin, to know its impact on growth of sweet sorghum (Sorghum bicolor) in greenhouse and sterile soil. Five strains of arbuscular mycorrhizal fungi (AMF) and eight rhizobacteria (two of them mutagenized) were compared with non-inoculated plants as control. Variables measured were index of chlorophyll SPAD, plant height, stem diameter (from the middle section), fresh biomass from stem, leaf, panicle, radical, and stem sugars content (˚Brix) of every two internodes. The results showed that in the majority of cases, microbial strains exceeded the values of variables compared with control plants. The highest values of chlorophyll (41.8 SPAD), stem diameter (13.5 mm) and total fresh biomass (144.3 g), were recorded with rhizobacterias BS410 (Herbaspirillum sp.), B2709 (Pseudomonas sp.) and B4M4 (Azospirillum sp.), respectively.

Item Type: Article
Uncontrolled Keywords: Beneficial Microorganisms, Sorghum bicolor, Greenhouse Conditions
Author Affiliation: 1Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias (INIFAP), Campo Experimental Rio Bravo Km 61 Carretera Matamoros-Reynosa, Rio Bravo, Tamaulipas, Mexico
Subjects: Plant Physiology and Biochemistry > Biochemistry
Social Sciences > Plant Physiology and Biochemistry > Biochemistry
Divisions: Sorghum
Depositing User: Mr T L Gautham
Date Deposited: 29 Oct 2015 08:23
Last Modified: 29 Oct 2015 08:23
URI: http://eprints.icrisat.ac.in/id/eprint/13962

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