Spatial-temporal distribution of fatal yellowing in different oil palm genetic materials in eastern amazon

作     者：Bruno Borella Anhe Artur Vinicius Ferreira dos Santos Thiago Alan Ferreira da Silva Lana Leticia Barbosa de Carvalho Paulo Roberto Silva Farias 

作者机构：Universidade Federal Rural da AmazoniaGeoestatistics Department66.077-830 BelemBrazil Universidade Federal Rural da AmazoniaEntomology Department66.077-830 BelemBrazil 

出 版 物：《Information Processing in Agriculture》 (农业信息处理（英文）)

年 卷 期：2022年第9卷第3期

页      面：365-377页

核心收录：

学科分类：09[农学] 0904[农学-植物保护] 090402[农学-农业昆虫与害虫防治] 

基　　金：Agropalma S/A Fundação Amazônia Paraense de Amparo à Pesquisa, FAPESPA 

主　　题：Elaeis guineensis Geostatiscal analysis Kriging Palm oil Spatial dependence 

摘      要：Oil palm (Elaeis guineensis Jacq.) is one of the agricultural crops with the greatest potentialfor vegetable oil production in Brazil. However, a disease of unknown etiology popularlyknown as Fatal Yellowin (FY) has caused damage to Brazilian farmers particularly in theeastern region of the Amazon. So, the objective of this study was to evaluate the spatialdependence of FY on three oil palm genotypes, grown for many years in an organic produc-tion system in the Amazon region. The study area had 4104 ha, divided into 139 plots. Ineach plot, the monthly incidence of disease was monitored forming a database. The num-ber of diseased plants per year, number of accumulated diseased plants, number of dis-eased plants per hectare, growth rate of diseased plants and incidence of accumulateddisease were evaluated. The results indicated spatial distribution of the variables adjustedto the gaussian, spherical and exponential models, with predominance of the first *** increases the purpose that FY is caused by biotic factors. The highest range achievedin the study was 2929 m indicating the susceptibility of the tested genotypes. Some plotsclose to the river had the highest incidence of the disease on the study, probably associatedwith higher soil moisture.