Results 21 to 30 of about 726 (115)

Tree stem methane emissions are regulated by site‐level biogeochemistry over species identity in Amazon floodplain forests

New Phytologist, Volume 251, Issue 1, Page 179-190, July 2026.
Summary Tree stems in Amazonian floodplains emit substantial methane (CH4), yet controls on emission variability remain unclear. Emissions span orders of magnitude between várzea (nutrient‐rich) and igapó (nutrient‐poor) forests and among trees, suggesting controls beyond flooding.
Holly R. Blincow, Niall P. McNamara, Dafydd M. O. Elias, Carla Gomez, Jack Lamb, Rodrigo Nunes de Sousa, Darlene Gris, Leonardo Pequeno Reis, Alison M. Hoyt, Sunitha Rao Pangala   +9 more
wiley   +1 more source

Reducing Nitrogen Fertilizer Dependency in Tropical Pastures Through Azospirillum Brasilense and Pseudomonas Fluorescens Coinoculation

New Zealand Journal of Agricultural Research, Volume 69, Issue 2, April 2026.
Coinoculation with Azospirillum brasilense and Pseudomonas fluorescens was associated with maintained forage productivity under reduced nitrogen (N) fertilizer rates in tropical pastures. This hypothesis was evaluated in a 2‐year field experiment conducted over two consecutive growing seasons (2022 and 2023) the State University of Goiás, São Luís de ...
Lucas Henrique Ferreira Santos, Gabriel Pereira Lima, Clarice Backes, Alessandro José Marques Santos, Patrick Bezerra Fernandes, Danilo Corrêa Baião, João Eduardo Sousa Reis, Guilherme Caixeta Correa, Valdemir Paulo Celestino, Arthur Gabriel Teodoro, Divino Antonio Santana Lima, Tiago do Prado Paim   +11 more
wiley   +1 more source

Cinética de degradação e fermentação ruminal da Brachiaria brizantha cv. marandu colhida em diferentes idades ao corte Degradation and fermentation kinetics of Brachiaria brizantha cv. Marandu at differents cutting ages

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007
Avaliou-se a cinética de fermentação ruminal de capim-braquiarão cortado aos 28, 56, 84 e 112 dias de rebrota, mediante o uso da técnica in vitro semi-automática de produção de gases.
G.H.F. Castro, D.S. Graça, L.C. Gonçalves, R.M. Mauricio, N.M. Rodriguez, I. Borges, T.R. Tomich   +6 more
doaj   +1 more source

Hyperdominant Trees Reveal Savanna Vulnerability Under Climate Change

Global Change Biology, Volume 32, Issue 4, April 2026.
The Brazilian Cerrado's forest structure relies disproportionately on just 30 hyperdominant tree species, which represent 50% of all individuals despite accounting for only 2% of species richness. This study evaluates their vulnerability under climate change scenarios for 2100.
Facundo Alvarez, Ben Hur Marimon‐Junior, Beatriz Schwantes Marimon, Wesley Jonatar Alves da Cruz, Norberto Gomes Ribeiro Júnior, Raiane Gonçalves Béu, Polyanna da Conceição Bispo, Aldair de Souza Medeiros, Glécio Machado Siqueira, Marcelo Leandro Bueno, Fabiana de Gois Aquino, Frederico Augusto Guimarães Guilherme, José Roberto Rodrigues Pinto, Henrique Augusto Mews, Bruno Machado Teles Walter, Sabrina do Couto de Miranda, Ricardo Flores Haidar, Eddie Lenza de Oliveira, Renata Dias Françoso Brandão, Eraldo Aparecido Trondoli Matricardi, Cássia Beatriz Rodrigues Munhoz, Edson de Souza Lima, Maria Antônia Carniello, Mercedes Maria da Cunha Bustamante, Paulo Sérgio Morandi, Edmar Almeida de Oliveira, Zenésio Finger, Eder Carvalho das Neves, Fernando Elias, Immaculada Oliveras Menor, Simone Matias de Almeida Reis, Oliver Phillips, Ted R. Feldpausch   +32 more
wiley   +1 more source

Alterations in plant architecture and physiology allow maize to sustain yield after early defoliation

Agrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract Maize (Zea mays L.) tolerance to early defoliation is shaped by genotype‐specific physiological and morphological responses. Defoliation disrupts the source–sink balance, altering carbon allocation and plant development. Understanding these responses is crucial for optimizing breeding programs and agronomic management.
Danielle de Oliveira, Daniele Maria Marques, Yago Afonso Castro, Paulo César Magalhães, Émerson Borghi, Decio Karam, Plinio Rodrigues dos Santos Filho, Amanda A. Cardoso, Thiago Corrêa de Souza   +8 more
wiley   +1 more source

Comparação do sistema de monitoramento computadorizado de digestão in vitro com os métodos in vivo e in situ: 2. Uso do resíduo da matéria seca de forragens Comparison of the in vitro digestion computerized monitoring system with in vivo and in situ methods: 2. Use of the dry matter residue of the forages

Revista Brasileira de Zootecnia, 2000
RESUMO - O objetivo deste trabalho foi comparar o sistema de monitoramento computadorizado da produção de gás in vitro com os métodos in vivo e in situ.
Fábio Prudêncio de Campos, Max Lázaro Vieira Bose, Celso Boin, Dante Pazzanese Duarte Lanna, Jozivaldo Prudêncio Gomes de Morais   +4 more
doaj   +1 more source

Dietary Bordão‐De‐Velho (Samanea tubulosa) Fruit Improves Grazing Beef Cattle Performance

New Zealand Journal of Agricultural Research, Volume 69, Issue 1, February 2026.
Integrated grass‐tree systems have been proposed to address socio‐ecological challenges in tropical cattle production. Bordão‐de‐velho (Samanea tubulosa), a legume tree native to the Amazon, is commonly found in degraded pastures and valued by farmers for its soil, forage, and livestock benefits.
Vanderson E. Meira, Alexandre A. Olival, Jozivaldo P. G. de Moraes, Mariana Campana, Tiago A. Del Valle   +4 more
wiley   +1 more source

Enzimas fibrolíticas, amilolíticas e proteolíticas influenciam as características de fermentação in vitro de forragem?

Semina: Ciências Agrárias, 2018
Avaliou-se os efeitos de doses crescentes de três enzimas exógenas: fibrolíticas (FIB), 0; 0,6; 1,2; 1,8 e 2,4 mg mL-1 volume de líquido incubado; amilolíticas (AMZ), 0; 0,05; 0,10; 0,15 e 0,20 mg mL-1 volume de líquido incubado, proteolíticas (PRO), 0 ...
Lucien Bissi da Freiria, Joanis Tilemahos Zervoudakis, Nelcino Franciso de Paula, Luciano da Silva Cabral, Luis Orlindo Tedeschi, Pedro Ivo José Lopes da Rosa e Silva, Alan Carlos Barboza Melo, Adriano Jorge Possamai   +7 more
doaj  

Cinética da degradação ruminal dos carboidratos de quatro gramíneas tropicais em diferentes idades de corte e doses de adubação nitrogenada: técnica de produção de gases Kinetic parameters of carbohydrates ruminal degradation of four tropical grasses in different cutting ages and nitrogen fertilizer levels

Revista Brasileira de Zootecnia, 2009
Objetivou-se neste experimento avaliar a cinética de degradação ruminal dos capins setária (Setaria anceps Stapf), hemarthria (Hemarthria altissima [Poir] Stapf.
Edenio Detmann, José Fernando Coelho da Silva, Hernán Maldonado Vásquez, Lara Toledo Henriques, Ismail Ramalho Haddade   +4 more
doaj   +1 more source

Rifting Evolution of the Central Campos Basin as a Hybrid Rifted Margin: Insights From Tectonic and Magmatic Structures

Tectonics, Volume 45, Issue 1, January 2026.
Abstract Recent observations and drilling campaigns have challenged the typical models for rifted margins by providing evidence for the existence of intermediate cases between the magmatic and amagmatic end‐members. In this contribution, we document the evolution of the Central Campos rifted margin, located in southeast Brazil, based on a combined ...
P. Alvarez, N. Stanton, G. Peron‐Pinvidic, L. Magnavita   +3 more
wiley   +1 more source