Bibliographic citations
Vallejos, G., (2021). Efectos de la inoculación de micorrizas arbusculares sobre la tolerancia a roya en clones de café (Coffea arabica L.) Var. caturra y pache en Moyobamba, Perú [Universidad Nacional de San Martín. Fondo Editorial]. http://hdl.handle.net/11458/4046
Vallejos, G., Efectos de la inoculación de micorrizas arbusculares sobre la tolerancia a roya en clones de café (Coffea arabica L.) Var. caturra y pache en Moyobamba, Perú []. PE: Universidad Nacional de San Martín. Fondo Editorial; 2021. http://hdl.handle.net/11458/4046
@phdthesis{renati/1055110,
title = "Efectos de la inoculación de micorrizas arbusculares sobre la tolerancia a roya en clones de café (Coffea arabica L.) Var. caturra y pache en Moyobamba, Perú",
author = "Vallejos Torres, Geomar",
publisher = "Universidad Nacional de San Martín. Fondo Editorial",
year = "2021"
}
Between 2011 and 2013, some coffee-producing countries of South America, Central America and Peru were severely affected by the presence of rust, generating large economic losses with social implications. In the present study, the effect of arbuscular mycorrhizal fungi (AMF) on nutrient status, growth, glomalin, catalase and rust resistance was evaluated in coffee in the province of Moyobamba, Peru from cloned plants of caturra and pache, which were inoculated with 2,000 AMF spores per selected consortium from the provinces of Moyobamba, El Dorado and Huallaga. After 110 days in the nursery, the seedlings were infested with rust and after 160 days they were established in the field using a 4A X 2B factorial design, characterized by the analysis of AMF concentrations and clonal coffee varieties. Mycorrhization, nutritional status, plant morphological growth, glomalin catalase and pathogenicity were evaluated. Mycorrhization showed significant differences in plants cloned from caturra with application of AMF from Huallaga, with 48.20 cm for mycelium and mycorrhizal colonization of 64, 81 %, plant height, number of branches, leaf area and flowers showed significant differences in plants cloned from caturra and pache with application of AMF from Huallaga and El Dorado with averages of 57.3 cm, 14.2 branches, 1,406.3 cm2 and 16 flowers. The nitrogen and phosphorus content evaluated in leaves did not show significant differences in the treatments evaluated, but the chlorophyll content index with application of AM from Huallaga, Moyobamba and El Dorado showed values ranging from 58.4 to 60.7. The incidence and severity of rust evaluated in coffee leaves showed significant differences in cloned plants of caturra and pache with application of MA from Huallaga with values ranging from 18 to 14.3%. Glomalin and catalase showed values of 12.34 mg/g and 6.99 U/g. The study has demonstrated the importance of AMF fungi consortia, due to their positive effect on the growth of coffee plants in the field, chlorophyll content and bioprotective effect of AMF consortia, resulting in the reduction of the incidence and severity of rust; they also affect the content of glomalin and catalase in the soil.
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