Agromorphological characterization of cacao (Theobroma cacao L.) accessions from the germplasm bank of the National Institute of Agrarian Innovation, Peru

Agromorphological characterization of cacao accessions in Peru is currently an important tool in the conservation and genetic improvement of cacao germplasm. The objective of this study was to carry out the morphological and agronomic characterization of 113 cacao accessions from the Huarangopampa germplasm bank. Tree, leaf, flower, fruit and seed descriptors were used. The data collected were processed by descriptive statistics using multivariate techniques. Five groups were formed according...

Genetic variability of yam (Dioscorea trifida) genotypes in the Ucayali region, Peru

The aim of this research was to assess genetic variability of yam Dioscorea trifida genotypes using morphological descriptors for the germplasm collection conserved in the Agricultural Experiment Station in Ucayali, Peru. Thirty-eight morphological traits were evaluated for 30 D. trifida genotypes over ten years; from the data we estimated the Shannon-Weaver diversity index (H’) and the coefficient of variation and performed principal component analysis and cluster analysis. Qualitative trait...

Aislamiento, identificación y evaluación in vitro de aislados nativos de bacillus, trichoderma y streptomyces con potencial para el biocontrol de los hongos de la madera de la vid

Antecedentes: El biocontrol de las enfermedades fúngicas de la madera de la vid (EMV), es una alternativa amigable frente al control químico causante de resistencia y/o contaminación del ecosistema. Objetivo: aislar microorganismos nativos de raíz y rizósfera de vid con potencial de biocontrol de hongos de la madera de la vid. Metodología: Se estudió la “competencia por sustrato” (CS) con la escala de Bell, “el tiempo de contacto” (TC) entre antagonista-patógeno” (días) y la antibiosis por el...

Phylogenomic Analysis of the Plastid Genome of the Peruvian Purple Maize Zea mays subsp. mays cv. ‘INIA 601’

Peru is an important center of diversity for maize; its different cultivars have been adapted to distinct altitudes and water availability and possess an array of kernel colors (red, blue, and purple), which are highly appreciated by local populations. Specifically, Peruvian purple maize is a collection of native landraces selected and maintained by indigenous cultures due to its intense purple color in the seed, bract, and cob. This color is produced by anthocyanin pigments, which have gaine...