Results 41 to 50 of about 1,639 (138)

The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

Biotropica, Volume 58, Issue 3, May 2026.
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa, Sandra Bibiana Correa, Florian Wittmann, Jochen Schöngart, Maria Teresa Fernandez Piedade, Efrem Jorge Ferreira, Leonardo Maltchik   +6 more
wiley   +1 more source

Peliculização e tratamento químico de sementes de algodoeiro (Gossypium hirsutum L.) Film-coating and chemical treatment of cotton seeds (Gossypium hirsutum L.)

Ciência e Agrotecnologia, 2006
O estabelecimento ideal de plantas no campo é determinado, dentre outros fatores, pela qualidade fisiológica e sanitária das sementes utilizadas. Neste sentido, o tratamento químico de sementes torna-se essencial, pois proporciona melhor desempenho das ...
Liana Baptista de Lima, Priscila Alves da Silva, Renato Mendes Guimarães, João Almir Oliveira   +3 more
doaj   +1 more source

Canalized to heat, plastic to cold: adaptive coordination of leaf and seed strategies in populations spanning an elevational gradient

New Phytologist, Volume 250, Issue 2, Page 873-884, April 2026.
Summary In tropical mountains, surviving temperature extremes demands finely tuned strategies. We investigated how populations of the bromeliad Pitcairnia flammea across a 2200 m elevational gradient balance genetic canalization and plasticity, and whether thermal strategies are coordinated between seeds and leaves.
Cleber J. N. Chaves, Danilo U. Tavares, Isabella V. Lemos‐Silva, João P. S. P. Bento, Henrique Vilela‐Bianchini, Paulo Aecyo, Tami C. Cacossi, Marília M. Tavares, Gabriel P. Sabino, Vitor de A. Kamimura, Wagner L. dos Santos, Lucas N. Gonçalves, Karina T. Silva, Juliana L. S. Mayer, Rafael V. Ribeiro, Diego Escobar‐Escobar, Kenneth J. Feeley, Clarisse Palma‐Silva   +17 more
wiley   +1 more source

Morfo-anatomia do fruto em desenvolvimento de Sorocea bonplandii (Baill.) Burger, Lanjow & Boer (Moraceae) - DOI: 10.4025/actascibiolsci.v27i4.1332

Acta Scientiarum: Biological Sciences, 2008
Sorocea bonplandii (Baill.) Burger, Lanjow e Boer é espécie de importância ecológica e medicinal que ocorre em remanescentes florestais na região noroeste do Paraná.
Luiz Antonio Souza, Sônia Maciel da Rosa   +1 more
doaj   +1 more source

Aspergillus conicus Endophyte Improves the Development of Eucalyptus camaldulensis Seedlings In Vitro

Journal of Basic Microbiology, Volume 66, Issue 3, March 2026.
ABSTRACT Fungi of the genus Aspergillus promote plant growth and resistance, enhance nutrient uptake, protect plants against pathogens, and increase tolerance to environmental stress. We examined the symbiosis between Aspergillus conicus and seedlings of Eucalyptus camaldulensis, a forest species widely grown in Brazil for its valuable wood and ...
Lorrayne Martins da Silva, Danival José de Souza   +1 more
wiley   +1 more source

FRUTIFICAÇÃO, PREDAÇÃO DE SEMENTES E ESTABELECIMENTO DE PLÂNTULAS DE TABEBUIA SERRATIFOLIA NICHOLS

Revista do Instituto Florestal, 1992
A região de Botucatu, no centro-sul do estado de São Paulo, possui características particulares quanto à cobertura vegetal, pois possui formações que vão desde as florestas mesófilas semidecíduas ao cerrado.
Weber Antonio Neves do Amaral, Karin H. Borges, Sérgio Luiz M. de Melo   +2 more
doaj   +1 more source

Animal–Plant Interactions Under Defaunation: Consequences for Amazonian Trees of Commercial Interest

Biotropica, Volume 58, Issue 2, March 2026.
We experimentally investigated the effects of medium‐ and large‐sized mammal defaunation on the removal and fate of seeds from economically important forest species in Amazonian forests. Our results show that mammal exclusion significantly reduced seed removal, although the magnitude of this effect varied among plant species.
Arlison Castro, Rodrigo Fadini, Mathias Pires, Carlos R. Brocardo, Icaro Wilker, Clarissa Rosa   +5 more
wiley   +1 more source

Molecular Detection of Exserohilum turcicum in Maize Seeds: Validation of Specific Primers and Development of PCR/qPCR Protocols

Journal of Phytopathology, Volume 174, Issue 2, March/April 2026.
ABSTRACT Northern corn leaf blight, one of the most devastating diseases of maize (Zea mays), is caused by Exserohilum turcicum. This pathogen is widely distributed and can be found in maize fields across most regions of the world. The association of pathogens with seeds is considered a serious threat to the establishment of a field since seeds are ...
Marina Resende Faria Guimarães, Carolina da Silva Siqueira, José da Cruz Machado, Sueny Kelly Santos de França, Sarah da Silva Costa Guimarães   +4 more
wiley   +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

Comparison between THE oven and THE Karl Fischer methodS for THE determination of the moisture content of maize (Zea mays L.) and soya (Glycine max (L) Merrill) seeds

Scientia Agricola, 1996
The objective of the present paper was to compare the seed water content of maize and soya, obtained by the oven method at different temperatures and the Karl Fischer method. The water contents used were 11.2 %, 12.8 % and 16.2 % for maize and 10.7 %, 12.
M.A.A TILLMANN, S.M CICERO
doaj   +1 more source