Brazilian Agricultural Research Corporation

Rhizosphere microbiome and calcium synergy drive suppression of Ceratocystis paradoxa in tropical coconut soils

Abstract Ceratocystis paradoxa is a polyphagous, soil-borne pathogen that threatens various crops worldwide. This study evaluated soil suppressiveness against C. paradoxa and identified key biotic and abiotic factors involved. Suppressiveness was assessed using banana peel baits,...

Variation in apparent wood density of Tachigali vulgaris as affected by tree diameter, height, forking, and soil conditions in Amazonian plantations

Abstract Tachigali vulgaris has potential for energy purposes in the Amazon, but the relationship between several silvicultural factors and wood quality requires further investigation. This study evaluated the variation in the apparent density of T. vulgaris wood in two pure plan...

Prediction of Sugarcane Yield Using Remote Sensing and Soil Mineralogy Data

Abstract Early yield estimation is essential for agricultural planning, localized management and decision-making in commercial areas, especially in view of the high spatial variability of sugarcane fields. However, traditional estimation methods are generally destructive, costly,...

Termites play a crucial role in forming major tropical soils: insights from a deep Ferralsol

Abstract Soil bioturbation is increasingly recognized as a key driver of pedogenesis in tropical ecosystems, influencing above- and below-ground biodiversity, nutrient cycling, and aggregate stability across different spatial and temporal scales. This ecological process may play...

LC-QTOF-MS Chemical Characterization, Cytotoxicity, and Antimicrobial Activity of Blue Geopropolis: An Emerging Type of Brazilian Propolis

Background/Objectives: This study characterized blue geopropolis from Melipona quadrifasciata quadrifasciata (southern Brazil) by comparing its chemical composition, cytotoxicity, antimicrobial activity, and coloration mechanisms directly against green and red Apis mellifera prop...

Assessing Water and Sediment Contamination in the Sub-Middle São Francisco River (Brazil): Combining Physicochemical Analyses, Trace Metals, and Allium cepa L. Ecotoxicity

The Sub-middle São Francisco River (Northeast Brazil), a key water resource for regional socioeconomic development, is increasingly threatened by urban, industrial, and intensive irrigated agricultural activities. This study aimed to assess physicochemical parameters, nutrient an...

Oral immunotherapy with anti-ES24 antibodies reduces burden and fecundity of Haemonchus contortus and inflammation in lambs artificially infected

Increasing multiple anthelmintic resistance in Haemonchus contortus has been reported worldwide, highlighting the need for alternative strategies to mitigate the damage caused by this nematode. In this study, we developed and evaluated an immunotherapy protocol based on specific...