Productivity of Tifton 85 bermudagrass, inoculated with Bradyrhizobium sp. and Trichoderma harzianum, subject to agricultural drought stress

  • Carlos José Bécquer-Granados Instituto de Investigaciones de Pastos y Forrajes, Estación Experimental Sancti Spíritus, Apdo. 2255, ZP 1, CP 62200, Sancti Spíritus
  • Urbano Ávila-Cordoví Instituto de Investigaciones de Pastos y Forrajes, Estación Experimental Sancti Spíritus, Apdo. 2255, ZP 1, CP 62200, Sancti Spíritus
  • José Ángel Nápoles-Gómez 1Instituto de Investigaciones de Pastos y Forrajes, Estación Experimental Sancti Spíritus, Apdo. 2255, ZP 1, CP 62200, Sancti Spíritus
  • Yaldreisy Galdo-Rodríguez Instituto de Investigaciones de Pastos y Forrajes, Estación Experimental Sancti Spíritus, Apdo. 2255, ZP 1, CP 62200, Sancti Spíritus
  • María Hernández-Obregón Instituto de Investigaciones de Pastos y Forrajes, Estación Experimental Sancti Spíritus, Apdo. 2255, ZP 1, CP 62200, Sancti Spíritus
  • Ivón Muir-Rodríguez Instituto de Investigaciones de Pastos y Forrajes, Estación Experimental Sancti Spíritus, Apdo. 2255, ZP 1, CP 62200, Sancti Spíritus
  • Orquidia Álvarez-Figueroa Instituto de Investigaciones de Pastos y Forrajes, Estación Experimental Sancti Spíritus, Apdo. 2255, ZP 1, CP 62200, Sancti Spíritus
  • Fernando Medinilla-Nápoles Centro Meteorológico Provincial de Sancti Spíritus

Abstract

A field trial was conducted, under stressing conditions of agricultural drought, in order to evaluate the effect of combined inoculation with Bradyrhizobium sp. and Trichoderma harzianum on agroproductive variables of the hybrid Tifton 85 (Cynodon dactylon). The experimental design was control plot, with five replicas and three treatments: control fertilized with NH4NO3 (150 kg of N/ha), absolute control and inoculated treatment. The dry weight of the aerial part (APDW), inoculation efficiency index based on the APDW (IEIAPDW), stem length (SL) and flowering (Flow.), were evaluated. In the APDW the statistical superiority of the inoculated treatment (326,8 g/m2) over the absolute control (230,0 g/m2), was observed, although these two treatments, in turn, were lower than the fertilized control (492,4 g/m2). With regards to IEIAPDW, the inoculated treatment showed 42,1 % more biomass than the absolute control. In SL there were no statistical differences between the inoculated treatment (28,9 cm) and the absolute control (27,0 cm), while the fertilized control (36,8 cm) surpassed both. There were no differences among treatments in flowering. It is concluded that, although there was no effect of the microbial inoculants on the flowering status of the crop, or on the stem length, a productivity of aerial biomass was obtained in the inoculated treatment higher than that of the absolute control. In general, the efficiency of the microbial inoculants used was proven.

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Published
2018-10-26
How to Cite
BÉCQUER-GRANADOS, Carlos José et al. Productivity of Tifton 85 bermudagrass, inoculated with Bradyrhizobium sp. and Trichoderma harzianum, subject to agricultural drought stress. Pastos y Forrajes, [S.l.], v. 41, n. 3, p. 196-201, oct. 2018. ISSN 2078-8452. Available at: <https://payfo.ihatuey.cu/index.php?journal=pasto&page=article&op=view&path%5B%5D=2047>. Date accessed: 13 aug. 2021.
Section
Artículo científico