Brazilian Agricultural Research Corporation

Genome characterization of a begomovirus isolated from Brazilian Carica papaya plants

Abstract Papaya ( Carica papaya L.) plants are susceptible to several viral pathogens. However, information regarding papaya-associated DNA viruses in Latin America is limited. In this study, we collected symptomatic papaya plants in Baraúna, Rio Grande do Norte, Brazil, and scre...

Assessing the Potential of Gabiroba Fruit Waste as an Oil Source via Ultrasound-Assisted Extraction: Physicochemical Parameters, Chemical Profile, and Biological Properties

This study aimed to evaluate the impact of ultrasound-assisted extraction (UAE) on the chemical composition and biological activities of gabiroba waste oil (GWO), compared to conventional Soxhlet extraction (SE). GWO was characterized for carotenoid content and analyzed by GC-MS...

Amazonian Trichoderma spp. as Biocontrol Agents Against Agroathelia rolfsii and for Improving Tomato Yield

Sclerotium rot, caused by Agroathelia rolfsii, is one of the main soil-borne diseases that limit tomato production. This study evaluates the efficacy of Amazonian Trichoderma species in controlling Sclerotium rot and stimulating plant development under field conditions in Manaus,...

Composting Barn Systems in Dairy Production: A Global and Multidimensional Synthesis of Evidence (2015–2025)

ABSTRACT The intensification of dairy farming has driven the adoption of more efficient and sustainable housing systems, among which the Compost Barn system stands out. However, the literature presents heterogeneous results influenced by climatic, structural, and management varia...

Soil-plant-animal properties and microbial reassembly distinguish cattle oral disease prevalence across converted Amazon pasture systems

Forest-to-pasture conversion can alter soil properties, forage composition, and microbial communities, but whether these changes are associated with bovine periodontitis remains unclear. We compared eight pasture systems in the Western Brazilian Amazon classified by high or low h...

Seed treatment of dent and sweet corn with alginate nanoemulsions of lemongrass essential oil against Fusarium graminearum and Pythium sylvaticum

Seed treatments are widely used to protect seeds from pathogens during germination and early seedling development. Although essential oil-based nanoemulsions have been investigated under in vitro conditions, their performance as seed treatments and their effects on seed physiolog...

Land-change trajectories of brazilian amazon wetlands across tenure regimes

Brazilian Amazon wetlands regulate carbon, hydrology, and biodiversity at continental scales, yet their vulnerability to land use and land cover change (LULCC) remains poorly understood. Here, we integrate open access datasets to evaluate wetland transformation across the Brazili...

An observational assessment of soil physical, chemical, and biological attributes under contrasting land-use systems in Eastern Maranhão, Brazil

Abstract The adoption of integrated crop–livestock production systems, together with practices such as crop rotation, crop succession, and intercropping, has increased the need for integrated approaches to assess soil health. This study evaluated soil health under contrasting lan...

90. Genetic Evaluation of Feed Efficiency Traits in Brazilian Angus Cattle.

Abstract Feed efficiency is a critical component of sustainable animal production, influencing economic viability, environmental impact, and biological performance. As feed constitutes the largest expense in beef production, even minor improvements in feed efficiency can yield su...

93. Smartbreeder: A Data-driven Virtual Assistant to Support Nellore Sire Selection Accounting for Genotype-by-environment-by-management Interactions.

Abstract The enviromics approach has emerged as an efficient framework for modeling genotype-by-environment-by-management (GxExM) interactions in animal breeding. It characterizes environmental conditions (ECs) in which animals are raised using detailed environmental and manageme...

Solanum vegetables as potential neuroprotective functional foods in Alzheimer's disease management: A unifying mechanism

Alzheimer's disease (AD) is a multi-etiological neurological condition that requires a holistic therapeutic approach in its management. In view of this functional foods and nutraceuticals have become --promising candidates in AD research. This is because functional foods and nutr...

Seed storage reduces the optimal temperature for germination of wild castor seed accessions

Castor plant ( Ricinus communis L.) is a non-edible raw material of importance for several industries, including cosmetics, pharmaceuticals, and energy. However, its commercial production is limited by seed dormancy, which affects germination rate and germination temperature unde...

Enhanced Antibacterial Activity of Lippia grata Essential Oil by Nanoencapsulation

Abstract Background Nanoencapsulation of essential oil with polysaccharides improves the antimicrobial property by reducing the essential oil volatility and imprinting a synergic effect from the polyelectrolyte. This was investigated for Lippia grata essential oil encapsulated in...

Brazilian Insect Survey: A Platform for Pest Management

Abstract Modern agriculture faces significant challenges in integrated pest management, where collecting, connecting, and processing monitoring data in real time are essential. This study presents the Brazilian Insect Survey (BIS), a web-based platform designed to centralize and...

Carbon balance in the Brazilian tropical dairy farming system

The expected increase in the global population is projected to raise the demand for milk and dairy products by 2050, highlighting the need to improve production efficiency while mitigating environmental impacts. This study evaluated the carbon balance of Brazilian tropical dairy...

Early defoliation and nitrogen fertilization: effects on maize morphophysiology and production

Abstract Early-stage defoliation represents a mechanical stress with increasing relevance in intensive cropping systems. This study investigated the morphophysiological responses and compensatory capacity of maize subjected to early defoliation and nitrogen (N) top-dressing manag...

Weather Extreme Events, Farm Management, and Cocoa Yield in Ecuador

The frequency and intensity of extreme weather events are increasing, yet their implications for perennial tree crops such as cocoa remain understudied. Existing cocoa-climate evidence is based on mean climate variables, discrete shocks, and concentrated in West and Central Afric...

On-Site Recycling of Coconut Leaves as Mulch Modifies Soil Hydrothermal Dynamics in Semiarid Coconut Orchards

Abstract On-site recycling of coconut leaves as mulch modifies soil hydrothermal conditions and irrigation water use in semiarid coconut orchards. This study evaluated the effects of senescent coconut leaves ( Cocos nucifera L.) used as mulch on soil thermal and water regimes in...

Traceability of Manilkara huberi Using Stable Isotope Ratio Analysis to Support Deforestation Prevention in the Amazon

Abstract Illegal deforestation represents one of the main challenges to the integrity of the Amazon rainforest, warranting the use of reliable tracking methods to identify the geographical origin of timber species inspected during commercial transactions. This study utilizes stab...

Crop, mulching and season effects on direct seeding for subtropical forest restoration and agroforestry systems

Abstract Direct seeding is a cost-effective technique for forest restoration and a practical tool for establishing agroforestry systems, yet its performance in subtropical climates remains insufficiently documented. We tested the effects of season (winter vs. summer), mulching, a...