Results 91 to 100 of about 20,425 (222)

Checklist of Orchidaceae From Brazilian Amazon Restingas

open access: yesNew Zealand Journal of Botany, Volume 64, Issue 3, September 2026.
In Brazil, restingas (coastal sandbank vegetation) are distributed along the coast in the Atlantic Forest, Caatinga, Cerrado, and Amazon phytogeographic domains. Orchidaceae is one of the botanical families with the greatest species richness in restingas in the Atlantic Forest but has been poorly documented in Amazonian restingas, resulting in limited ...
Deivid Lucas de Lima da Costa   +1 more
wiley   +1 more source

Host‐associated chemical cues mediating host‐finding behaviour in the larval ectoparasitoid Cephalonomia tarsalis

open access: yesPest Management Science, Volume 82, Issue 9, Page 8459-8467, September 2026.
Host‐associated volatiles mediate host location in Cephalonomia tarsalis, with faecal odours from fourth‐instar larvae, particularly 1‐pentadecene, attracting females and supporting the biological control of stored‐product pest beetles. Abstract BACKGROUND Understanding how parasitoids locate their hosts is essential for improving the effectiveness of ...
Lidia del Arco   +3 more
wiley   +1 more source

A concentração fundiária e as políticas agrárias governamentais recentes

open access: yesRevista IDEAS, 2010
Este artigo trata da estrutura fundiária brasileira, que em sua herança histórica tem como marca essencial a concentração de terras nas mãos de uma pequena minoria, configurando as relações de produção e trabalho vigentes na economia agrária do Brasil ...
Lívia Hernandes Carvalho
doaj  

Effects of Temperature Peaks and Water Stress on Tropical Seed Germination: Experimental Trials With Species From Brazil's Northeastern Coastal Zone

open access: yesBiotropica, Volume 58, Issue 5, September 2026.
ABSTRACT Understanding the effects of high temperatures and water deficit on germination provides valuable insights into seed stress tolerance, guiding the use of native seeds in ecological restoration. This study aimed to evaluate the effects of (1) temperature peaks and (2) water stress treatments and post‐stress recovery on the germination of some ...
Hipolyana Simone de Oliveira   +5 more
wiley   +1 more source

El derecho procesal agrario como instrumento de seguridad jurídica y social en el agro

open access: yesRevista de la Facultad de Derecho y Ciencias Políticas, 1980
(Ponencia general presentada al VIII Congreso Mexicano de Derecho Procesal efectuado en Xalapa, Veracruz, del 10 al 16 de noviembre de 1979; escrito a principios de octubre del mismo año). Contiene: La función social de la propiedad privada –  II.
Hernando Devis Echandía
doaj  

Insights Into Soil Health in Sugarcane From a Bibliometric Analysis: Brazil's Scientific Contribution to the World

open access: yesGCB Bioenergy, Volume 18, Issue 9, September 2026.
This bibliometric review (2000–2025) reveals a sharp increase in publications and citations on sugarcane soil health after 2010, driven by mechanized harvesting and climate–bioenergy policies. Research is spatially concentrated in São Paulo State and dominated by chemical and physical indicators, with biological attributes remaining underrepresented ...
Lucas Jónatan Rodrigues da Silva   +9 more
wiley   +1 more source

Thermal Thresholds and Genetic Sensitivity in Barrel Racing Performance of Quarter Horses Across Temperature–Humidity Indices

open access: yesJournal of Animal Breeding and Genetics, Volume 143, Issue 5, Page 719-733, September 2026.
ABSTRACT Heat stress is an increasingly important challenge for the performance and welfare of equine athletes, particularly in competitions conducted across diverse climatic conditions. Understanding the genetic basis of performance responses to increasing thermal load is therefore essential to support robust genetic evaluation and sustainable ...
Mário Luiz Santana   +1 more
wiley   +1 more source

How Accurately Do Species Distribution Models Predict the Expansion of Invasive Insects, and Does Climate Data Choice Matter? Insights From the Invasion of Dryocosmus kuriphilus

open access: yesJournal of Applied Entomology, Volume 150, Issue 8, Page 1035-1046, September 2026.
ABSTRACT Species distribution models (SDMs) are widely used to predict the spread of invasive species, yet their accuracy over time and the influence of climate data resolution remain unclear. Here, we examine the capacity of SDMs to predict the distribution and short‐term expansion of the invasive gall wasp Dryocosmus kuriphilus, and compare the ...
José Carlos Pérez‐Girón   +3 more
wiley   +1 more source

CONCEITOS INTERPRETATIVOS DA REALIDADE AGRÁRIA BRASILEIRA E OS LATIFÚNDIOS NO ESTADO DO RIO GRANDE DO SUL

open access: yesBoletim Geográfico do Rio Grande do Sul, 2017
Ainda existem latifúndios no Brasil? E no Rio Grande do Sul? Diante desse questionamento, e considerando a legislação agrária brasileira posterior ao ano de 1964, este artigo apresenta resultados da análise e interpretação dos conceitos e tipologias ...
Alcione Talaska   +1 more
doaj  

Volatile Organic Compounds Emitted by Fungi Have Substantial Effects on Growth and Disease Resistance in Arabidopsis thaliana

open access: yesPlant, Cell &Environment, Volume 49, Issue 9, Page 7168-7190, September 2026.
ABSTRACT Volatile organic compounds (VOCs) emitted by certain fungi have previously been suggested to modulate plant development and their response to stresses. While some fungal species, such as Trichoderma harzianum, are known to produce VOCs, the production of VOCs in other phylogenetically divergent species, such as Mucor mucedo, was previously ...
Sara Yugueros   +7 more
wiley   +1 more source

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