Results 81 to 90 of about 3,161 (206)

Sampling and Diversity of Hymenoptera (Insecta) in an Orange Orchard/Brazilian Savannah Fragment Interface

open access: yes, 2015
O objetivo deste estudo foi avaliar a diversidade de himenópteros de uma interface cultura de citros/fragmento de Cerrado em Descalvado, SP, Brasil, através do uso de armadilhas de Moericke, de Malaise e de pitfall.
de Almeida Tango, Maria Flora   +4 more
core   +2 more sources

New species of the genus Dentigaster Zettel (Hymenoptera, Braconidae, Cheloninae) from Brazil

open access: yesBrazilian Journal of Biology
A new species of the genus Dentigaster Zettel, 1990 (Braconidae, Cheloninae) is described from savannah areas of Mato Grosso, São Paulo and Minas Gerais states, Brazil. This is the fourth species of the genus known for brazilian fauna.
MM Dias, AM Penteado-Dias
doaj   +1 more source

Crop rotation, green manure and nitrogen fertilizers in upland rice under no-tillage

open access: yesPesquisa Agropecuária Tropical, 2018
The Brazilian Savannah region presents a great potential for the expansion of upland rice crops. However, studies are necessary to identify practices that can improve the crop performance, especially in no-tillage systems.
Orivaldo Arf   +4 more
doaj   +1 more source

Aiouea affinis (Lauraceae): A New Tree Species From the Brazilian Atlantic Rainforest

open access: yesFeddes Repertorium, Volume 137, Issue 2, June 2026.
ABSTRACT Aiouea is a Neotropical genus of Lauraceae currently comprising ca. 85 species. Descriptions of new taxa have been frequent in recent years, particularly in Brazil, which currently hosts 35 species, 24 of them being endemic. Based on a review of herbarium material and recent collections, we propose a new species, Aiouea affinis, named for its ...
Marcelo Leandro Brotto   +1 more
wiley   +1 more source

Characterization of malpighiaceae flower-visitor interactions in a brazilian savannah: how do floral resources and visitor abundance change over time

open access: yes, 2020
CAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIORCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOThe plants of Malpighiaceae are diverse and produce specific floral resources that provide a parameter of habitat ...
Marsaioli, Anita Jocelyne   +3 more
core   +1 more source

Quinoa (Chenopodium quinoa) reaction to herbicide residue in a Brazilian Savannah soil [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2003
The quinoa (Chenopodium quinoa Willd.) cultivation, one of the most promising in double cropping with soybeans or maize, depends on weed control. The objective of this work was to evaluate quinoa reaction to herbicide residue in a savannah soil. Six herbicide treatments, trifluralin, pendimethalin, clomazone, imazaquin, trifluralin + imazaquin and ...
Santos, Roberto Lorena de Barros   +2 more
openaire   +4 more sources

Straw and early nitrogen fertilization affect soil properties and upland rice yield

open access: yesPesquisa Agropecuária Tropical, 2016
The presence of cover crop straw and early application of total N at sowing may provide significant changes in the microbial population, reflecting on the N dynamics in the soil and in upland rice plants. This study aimed at determining the effect of the
Adriano Stephan Nascente   +1 more
doaj   +1 more source

Annual Variation in Stallion Testicular Measurements and Its Association With Hormonal Profiles and Semen Quality

open access: yesReproduction in Domestic Animals, Volume 61, Issue 6, June 2026.
ABSTRACT In a stallion breeding‐soundness examination, testicular volume may be estimated either from total scrotal width or by measuring the height, width and length of both testes. This study aimed to determine whether testicular morphometric parameters obtained by ultrasonography fluctuate throughout the year, and whether these variations affect ...
T. R. C. Braga   +4 more
wiley   +1 more source

Production of enzymes from Lichtheimia ramosa using Brazilian savannah fruit wastes as substrate on solid state bioprocessess [PDF]

open access: yes, 2013
Background: Enzyme production by solid state bioprocess (SSB) using residues as substrate for microorganisms is an alternative for costs reduction and to avoid their disposal into environment.
Fonseca,Gustavo Graciano   +11 more
core   +1 more source

MISS diversity from saline lakes of Brazilian Pantanal: Origin, potential of preservation and comparison with examples of the Ediacaran‐Cambrian shallow depositional settings

open access: yesSedimentology, Volume 73, Issue 4, Page 945-964, June 2026.
ABSTRACT One of the largest wetlands on Earth, the Brazilian Pantanal contains roughly 10 000 natural lakes, about 1000 of which are hypersaline. In these environmentally stressful settings, animal life struggles to survive, while cyanobacteria form extensive mats.
Lucas V. Warren   +5 more
wiley   +1 more source

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