Results 41 to 50 of about 3,372 (114)

Activity of antioxidant enzymes and proline accumulation in Erythrina velutina Willd. seeds subjected to abiotic stresses during germination

Journal of Seed Science
The aim of this study was to evaluate the effect of different abiotic stresses on the activity of antioxidant enzymes and on accumulation of proline in Erythrina velutina Willd. seeds during germination.
Renata Conduru Ribeiro, Janete Rodrigues Matias, Claudinéia Regina Pelacani, Bárbara França Dantas   +3 more
doaj   +1 more source

Nutrient losses due to water erosion using simulated rainfall in southern Brazil

Dyna, 2018
Erosion is the main form of degradation in the world, consequently of loss of soil, water and nutrients, provoking direct and indirect damages. The objective of this work is to quantify N, P and K losses by water erosion under simulated rainfall ...
Jeane Cruz Portela, Neroli Pedro Cogo, Jacques Carvalho Ribeiro Filho, Letícia Sequinatto, Rafael Oliveira Batista, Carolina Malala Martins Souza, Joaquim Emanuel Fernandes Gondim   +6 more
doaj   +1 more source

Occurrence of oidium in cowpea influenced by cropping system and planting season

Agronomy Journal, Volume 118, Issue 2, March/April 2026.
Abstract Cowpea (Vigna unguiculata (L.) Walp.) is a crop of major importance in semiarid regions, where powdery mildew can significantly reduce productivity. This study evaluated powdery mildew severity in four cowpea cultivars grown under monocropping and intercropping with two biomass sorghum (Sorghum bicolor (L.) Moench) across two planting seasons (
Layana Alves do Nascimento, Juliane Rafaele Alves Barros, Jadson Lima da Silva, Emília Hamada, Natoniel Franklin de Melo, Francislene Angelotti   +5 more
wiley   +1 more source

Assessing contributions of deterministic versus stochastic processes to local species assembly: A field experiment with annual plant‐dominated communities in gypsum systems

Journal of Ecology, Volume 114, Issue 3, March 2026.
In this study, we experimentally show that stochasticity can play prominent roles in driving local species assembly in annual plant‐dominated communities of semiarid gypsum ecosystems. Drylands are traditionally viewed as restrictive environments that impose strong deterministic filtering effects, but neutral events can also contribute decisively to ...
Laura Ortiz, Arantzazu L. Luzuriaga, Lars Götzenberger, Pablo Ferrandis   +3 more
wiley   +1 more source

Distribuição e densidade do bivalve Tivela mactroides (Born, 1778) em região estuarina tropical do semiárido do nordeste brasileiro

Biotemas, 2013
O presente estudo avaliou a distribuição (espacial e temporal) e a densidade do molusco Tivela mactroides em praias de uma região estuarina tropical do semiárido brasileiro e as suas relações com temperatura, salinidade, matéria orgânica e granulometria
Eudilena Laurindo Medeiros, Gabryelle Viégas Fernades, Gustavo Gonzaga Silva   +2 more
doaj   +1 more source

Caracterização fenológica e produtiva da variedade de uva Superior Seedless cultivada no Vale do São Francisco [PDF]

Revista Brasileira de Fruticultura, 2002
A variedade Superior Seedless, devido não somente às excelentes características morfológicas, mas também ao agradável sabor de seus frutos, tem se destacado nos últimos anos como a principal uva sem sementes cultivada no Vale do São Francisco.Este ...
LEILSON COSTA GRANGEIRO, PATRÍCIA COELHO DE SOUZA LEÃO, JOSÉ MONTEIRO SOARES   +2 more
doaj   +1 more source

Drivers of Habitat Selection by the Endangered Greater Caribbean Manatee in Coastal‐Marine Ecosystems

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 1, January 2026.
ABSTRACT Habitat selection is a fundamental aspect of animal movement and behaviour, involving strategies that influence population regulation, species interactions, community structure and the generation and preservation of biodiversity. The Greater Caribbean Manatee is a megaherbivorous aquatic mammal with high environmental plasticity, found in a ...
Iran C. Normande, Ana Carolina O. Meirelles, João C. G. Borges, Emma Deeks, Fernanda L. N. Attademo, Carolina N. Souza, Fábia O. Luna, Rafael A. Magris, Robson G. Santos   +8 more
wiley   +1 more source

The Miners of South America: Impacts of Climate Change on the Distribution of Geositta Miners Along Elevational Gradients

Biotropica, Volume 58, Issue 1, January 2026.
We modeled the current and future distributions of seven Geositta species along elevational gradients in South America under two climate change scenarios. Our results show that most species are projected to lose suitable habitats, particularly under the high‐emission scenario, with distinct responses between lowland and highland taxa.
Ricardo C. Meireles, Leonardo E. Lopes, Gustavo R. Brito, Ricardo Solar   +3 more
wiley   +1 more source

Nutritional status of watermelon fertirrigation with nitrogen and phosphorus rates

Semina: Ciências Agrárias, 2014
The objective of this work was to evaluate the effect of N and P2O5 rates through irrigation water on the uptake of macro and micronutrients by watermelon crop.
Marcelo Sobreira de Souza, José Francismar de Medeiros , Max Venicius Teixeira da Silva, Otaciana Maria dos Prazeres da Silva , Sérgio Weine Paulino Chaves   +4 more
doaj   +1 more source

Combining Insecticides and Bioinputs With Eucalyptus Wood Vinegar: Effects on the Soybean Crop

Advances in Agriculture, Volume 2026, Issue 1, 2026.
The use of pesticides and bioinputs in agriculture is one of the most vital needs today to improve crop yields. A combination of pesticides and bioinputs, along with natural agents, is a viable solution to make agribusiness more eco‐friendly. Wood vinegar (WV) is a recognized agricultural input that enhances plant growth and can act as a valuable agent
Leonardo José de Sousa Lima, Alexandre Santos Pimenta, Neyton de Oliveira Miranda, Priscila Lira de Medeiros, Gil Sander Próspero Gama, Rafael Tadeu dos Santos, Gledison Michel Mascote, Tatiane Kelly Barbosa de Azevedo, Rafael Rodolfo de Melo, Gabriel Siqueira de Andrade, Atin Kumar   +10 more
wiley   +1 more source