Analysis of Infestation of Nematode Meloidogyne exigua in a Rubber Tree Plantation in the Triângulo Mineiro Region

AUTOR(ES)

Duarte, Daiane Marques

FONTE

Floresta Ambient.

DATA DE PUBLICAÇÃO

30/09/2019

RESUMO

ABSTRACT This study analyzed the use of the water balance, precipitation, temperature and NDVI (Normalized Difference Vegetation Index) to determine the optimum moment for evaluating infestation by the nematode Meloidogyne exigua in a rubber tree plantation by remote sensing. Nineteen sampling points were defined, divided into three areas, with high and low defoliation degrees, on a property in the Triângulo Mineiro region, where soil and root samples were collected for nematological analysis. Monthly digital images (OLI - Landsat 8 sensor) were obtained from August 2015 to August 2016. Rainfall, temperature and water balance were analyzed. The latter had no correlation with the indices; in contrast, temperature and precipitation correlated directly with NDVI. The best months for nematode soil infestation analysis were December, January and February, while for root infection it was August.

Documentos Relacionados

• Diversity of Meloidogyne exigua (Tylenchida: Meloidogynidae) populations from coffee and rubber tree.
• Impact of the timing and duration of weed control on the establishment of a rubber tree plantation
• Dinâmica da comunidade arbórea de formações florestais do bioma cerrado no Triângulo Mineiro
• Diversity of group A rotavirus genes detected in the Triângulo Mineiro region, Minas Gerais, Brazil
• A poética do vernáculo: os painéis de Geraldo Queiroz no Triângulo Mineiro