Photochemical efficiency and growth of chile poblano inoculated with rhizobacteria and arbuscular mycorrhizal fungi

Authors

  • Juan José Almaraz-Suárez Colegio de Postgraduados-Campus Montecillo
  • Ronald Ferrera-Cerrato Colegio de Postgraduados-Campus Montecillo
  • Apolinar González-Mancilla Facultad de Agricultura y Zootecnia, Universidad Juárez del Estado de Durango
  • Rigoberto González- Mancillas Tecnológico Nacional de México / Instituto Tecnológico de la Cuenca del Papaloapan (ITCP).
  • Ignacio Orona-Castillo Facultad de Agricultura y Zootecnia, Universidad Juárez del Estado de Durango
  • Ulises Noel Gutiérrez- Guzmán Facultad de Agricultura y Zootecnia, Universidad Juárez del Estado de Durango
  • Pablo Preciado-Rangel Instituto Tecnológico de Torreón

DOI:

https://doi.org/10.19136/era.a9n3.3126

Abstract

Arbuscular mycorrhizal fungi (AMF) and plant growth promoting bacteria (PGPB) are symbiotically and naturally associated with poblano pepper plants. The objective of this research was to evaluate the effect of AMF and PGPR inoculation on the photochemical
efficiency of photosystem II and the growth of poblano pepper seedlings. The experiment was
carried out in a greenhouse, under a completely random design, combining three groups of AMF [Funneliformis geosporum + Claroideoglomus spp. (FGC), Claroideoglomus etunicatum (CE) and without mycorrhiza (SM)] and two levels of rizobacterial [Arthrobacter spp. (AB) and without rizobacteria (SB)], generating six treatments: [T1) FGC + AB, T2) FGC + SB, T3) CE + AB, T4) CE + SB, T5) SM + AB and T6) SM + SB (Control)], with 15 repetitions each, for a total of 90 experimental units. 7 g of substrate was used as AMF inocula, propagated in trap culture for six months with Ray-grass (140 and 128 spores); The bacteria used was Arthrobacter spp., prepared in a liquid medium with nutrient broth, adding 1 mL of inoculum per cavity, with 166 x 108 UFC mL−1. The variables evaluated were plant height,
number of leaves, leaf area, dry biomass, mycorrhizal colonization and the photochemical efficiency of Photosystem II. The T1 generated greater plant height, number of leaves, foliar area, dry biomass and mycorrhizal colonization, however in the photochemical efficiency of photosystem II expressed in Fv/Fm and Fv/Fo, was superior at T2. The inoculation of AMF and PGPB are alternatives to improve the growth of seedlings in poblano pepper.

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Published

2023-01-02

Issue

Section

SCIENTIFIC ARTICLE

How to Cite

Almaraz-Suárez, J. J., Ferrera-Cerrato, R., González-Mancilla, A., González- Mancillas, R., Orona-Castillo, I., Gutiérrez- Guzmán, U. N., & Preciado-Rangel, P. (2023). Photochemical efficiency and growth of chile poblano inoculated with rhizobacteria and arbuscular mycorrhizal fungi. Ecosistemas Y Recursos Agropecuarios, 9(3). https://doi.org/10.19136/era.a9n3.3126

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