Arbuscular Mycorrhizal Fungi and Phosphorus Doses on Coffee Growth Under a Non-Sterile Soil

Abstract

The use of mycorrhiza is a promising biotechnology that makes coffee cultivation sustainable in the use of fertilizers. In this sense, plant growth and phosphorus contents were assessed in coffee inoculated with Rhizophagus clarus, Claroideoglomus etunicatum and Dentiscutata heterogama in soil fertilized with 0, 0.74, 1.48 and 2.96 g P2O5 kg-1. The experimental design was a randomized block design in a 4 × 4 factorial scheme with four replications. The mycorrhizal seedlings were previously produced and later transplanted to pots, simulating the field planting. The assessments were performed 150 days after transplanting. All variables were influenced by inoculation, but the effects were dependent on P doses. P doses higher than 50% of the recommended dose (0.74 g P2O5 kg-1) decreased the benefit of mycorrhiza. The fungi Rhizophagus clarus and Claroideoglomus etunicatum promoted a higher growth of coffee plants when compared to non-inoculated plants in non-sterilized soils and with a reduction in the applied P.

Roles of arbuscular mycorrhizal fungi on acclimatization of clones of Coffea arabica L. produced by somatic embryogenesis

“…The results of this study indicate that the species of inoculated AMF affects the response of the plant, corroborating with other studies with AMF in symbiosis with plants (Saggin-Júnior et al, 1995;Moreira et al, 2019).…”

“…Another important point to be explored is how the species and genes of AMF used in the controlled inoculation. Moreira et al (2019) studied Gigaspora margarita and Rhizophagus clarus and observed an increase to shoot dry mass and root system when compared with the noninoculated treatment. Therefore, the species of AMF affect positively the answer of the plant and present a positive point regarding programs of controlled use of AMF.…”

Colonizações radiculares por fungos micorrízicos arbusculares (FMAs) em áreas degradadas pela exploração petrolífera no Estado do Amazonas, Brasil

“…A colonização radicular por hifas não ultrapassou 10% e as menores taxas ocorreram no RUC 37H, apesar do solo dessa clareira apresentar o menor teor de P, fator determinante para que houvesse a maior colonização de hifas das espécies vegetais, tendo em vista que esse nutriente interfere negativamente na colonização radicular por fungos micorrízicos arbusculares (SMITH et al, 2010;MOREIRA et al, 2019).…”

Revisión: Distribución y efecto de los hongos micorrízicos en el agroecosistema de café

“…Nogeira -Cardoso, 2000;Stürmer & Siqueira, 2006;França, de Freitas, dos Santos, Grazziotti, Andrade, 2016;Cogo et al, 2017;Moreira, França, Grazziotti, Leal, & Silva, 2019), México con 15 (Trejo-Aguilar et al, 2011;Arias et al, 2012;Posada et al, 2012;Pérez-Luna, Álvarez-Solís, Hernández-Cuevas, & Sánchez-Roque, 2016;Posada, Sánchez, Heredia-Abarca, & Sieverding, 2018;Herrera-Monroy, Castro-Brindis, Pérez-Moreno, & Valdés-Velarde, 2019;Bertolini, Montaño, Salazar, Chimal, & Varela, 2020) y Colombia con 33 (Posada et al, 2012;Posada et al, 2018), además de ser los países con más trabajos publicados. En Perú hay 10 reportes (Vallejos-Torres, Arévalo, Iliquin, & Solís, 2019), en Cuba 9 (Sánchez et al, 2000) y en Puerto Rico, 2 (Lebrón, Lodge, & Bayman, 2012).…”