Estimación de máximas densidades para mitigar el impacto de la enfermedad HLB en plantaciones de naranja Valencia

Abstract

Objectives: This work was carried out to estimate the optimal plant density for 4 Valencia orange varieties and to determine the highest yield potential as a strategic to overlap the yield reduction by citrus HLB disease. Methodology: Tree growth data of nine years [(height, diameter and canopy volume (CV); area of soil covered by canopy (ASC)] and yield in kg/tree (Y) of four varieties were analyzed first by correlation analysis and then submitted to a lineal and multiple regression analysis. Contribution: Correlation values of 0.8 and 0.85 were observed for ASC and CV with Y, respectively. Based on these variables the optimal calculated tree densities by regression for “Pineapple”, “Queen”, “Cutter” and “Campbell” varieties were 900-1000 trees/ha, which can yield 30 to 60 ton/ha/year, from 4th to 9th year.

Efecto del portainjerto sobre el comportamiento vegetativo y productivo de la lima ácida Tahití (Citrus latifolia Tanaka) en condiciones de bosque seco tropical colombiano

“…Los resultados del portainjerto Sunky x English representa una alternativa prometedora para el aumento de las densidades de siembra en el establecimiento de nuevas áreas de lima ácida Tahití, y como estrategia de manejo frente a limitantes fitosanitaria como HLB presente en algunas zonas productoras de Colombia. Medina-Urrutia et al (2019), indican que altas densidades de plantación con materiales altamente eficientes disminuye el impacto por la pérdida de árboles y permite a los productores de cítricos generar ingresos rentables.…”