Results 41 to 50 of about 2,141 (178)

Initial growth and development of southern sandbur based on thermal units [PDF]

Planta Daninha, 2014
Availability of basic information on weed biology is an essential tool for designing integrated management programs for agricultural systems. Thus, this study was carried out in order to calculate the base temperature (Tb) of southern sandbur (Cenchrus ...
E.C.R. Machado, R.S.O. Lima, A.P.P. Silva, B.S. Marques, M.F. Gonçalves, S.J.P. Carvalho   +5 more
doaj   +1 more source

GERMINAÇÃO DE SEMENTES DE PLANTAS DANINHAS SUBMETIDAS AO TESTE DE ENVELHECIMENTO ACELERADO

Revista Brasileira de Engenharia de Biossistemas, 2021
O estudo teve como objetivo analisar o efeito do envelhecimento acelerado sobre a germinação de sementes de plantas daninhas. O experimento foi conduzido em laboratório, com delineamento inteiramente casualizado em esquema fatorial 4x5, sendo sementes ...
Gustavo Soares Wenneck, Vinicius Villa e Vila, Reni Saath, Roberto Rezende   +3 more
doaj   +1 more source

Acúmulo e partição de nutrientes de cultivares de milho em competição com plantas daninhas Accumulation and partitioning of dry matter and nutrients in maize cultivars in competition with weed

Planta Daninha, 2012
A competição por nutrientes varia com as espécies envolvidas e pode determinar o sucesso de plantas cultivadas em detrimento das espécies daninhas. Objetivou-se com este trabalho avaliar os efeitos da competição entre três cultivares de milho (híbrido ...
J.P. Cury, J.B. Santos, E.B. Silva, E.C.M. Byrro, R. R. Braga, F.P. Carvalho, D Valadão Silva   +6 more
doaj   +1 more source

Phytotoxic effects of essential oils in controlling weed species Digitaria horizontalis and Cenchrus echinatus

Biocatalysis and Agricultural Biotechnology, 2017
Abstract In certain plant species, essential oils have been reported to inhibit seed germination and cause toxicity and have been associated with a loss of photosynthetic activity. This study aimed to evaluate the effects of essential oils and their major compound citronellal on the germination and growth of crabgrass ( Digitaria horizontalis ) and ...
Marcio Akio Ootani, Marcelo Rodrigues dos Reis, Alex Sander Rodrigues Cangussu, Aristoteles Capone, Rodrigo Ribeiro Fidelis, Wennder Oliveira, Helio Bandeira Barros, Augustus Caeser F. Portella, Raimundo de Souza Aguiar, Weder Ferreira dos Santos   +9 more
openaire   +2 more sources

Crescimento inicial de mudas de oliveira em competição com plantas daninhas

Agrarian, 2015
Dentre os fatores ambientais que afetam o desenvolvimento da oliveira (Olea europaea L.), cita-se a convivência com outras plantas no ambiente de cultivo, que pode interferir no crescimento e no equilíbrio nutricional das plantas.
Larissa Madureira Martins, Maria do Céu Monteiro Cruz, Adelson Francisco de Oliveira, Miriã Cristina Pereira Fagundes, José Barbosa dos Santos   +4 more
doaj   +1 more source

Dense Cover, but Not Allelopathic Potential, of Naturalised Alien <em>Cenchrus echinatus</em> L. Threatens the Native Species in the Urban Vegetation

, 2023
Exotic plants are usually problematic for the native species where they coexist. This study evaluated the effect of naturalised alien Cenchrus echinatus L. on native plants in the urban vegetation. A field trial was conducted to assess the effect of this species on cover and diversity of the native vegetation. The allelopathic potential of such species
Mahmoud O. Hassan, Howida Y. Mohamed, Mohammad K. Okla, Bushra Hafeez Kiani, Ahmed A. Amro   +4 more
openaire   +1 more source

Biological invasions: a global assessment of geographic distributions, long‐term trends, and data gaps

Biological Reviews, Volume 100, Issue 6, Page 2542-2583, December 2025.
ABSTRACT Biological invasions are one of the major drivers of biodiversity decline and have been shown to have far‐reaching consequences for society and the economy. Preventing the introduction and spread of alien species represents the most effective solution to reducing their impacts on nature and human well‐being.
Hanno Seebens, Laura A. Meyerson, David M. Richardson, Bernd Lenzner, Elena Tricarico, Franck Courchamp, Alla Aleksanyan, Emre Keskin, Hanieh Saeedi, Perpetra Akite, Jake M. Alexander, Sarah A. Bailey, Dino Biancolini, Tim M. Blackburn, Hans Juergen Boehmer, Alejandro Bortolus, Marc W. Cadotte, César Capinha, James T. Carlton, Jo Anne Crouch, Curtis C. Daehler, Franz Essl, Llewellyn C. Foxcroft, Jason D. Fridley, Nicol Fuentes, Mirijam Gaertner, Bella Galil, Emili García‐Berthou, Pablo García‐Díaz, Sylvia Haider, Liam Heneghan, Kevin A. Hughes, Cang Hui, Ekin Kaplan, Andrew M. Liebhold, Chunlong Liu, Elizabete Marchante, Hélia Marchante, Alicia Marticorena, David W. Minter, Rodrigo A. Moreno, Wolfgang Nentwig, Aidin Niamir, Ana Novoa, Ana L. Nunes, Aníbal Pauchard, Sebataolo Rahlao, Anthony Ricciardi, James C. Russell, K.V. Sankaran, Anna Schertler, Evangelina Schwindt, Ross T. Shackleton, Daniel Simberloff, David L. Strayer, Alifereti Tawake, Marco Thines, Cristóbal Villaseñor‐Parada, Jean Ricardo Simões Vitule, Viktoria Wagner, Victoria Werenkraut, Karsten Wesche, Demian A. Willette, Rafael D. Zenni, Petr Pyšek   +64 more
wiley   +1 more source

Manejo de plantas daninhas na cultura do algodoeiro com S-metolachlor e trifloxysulfuron-sodium em sistema de plantio convencional Weed Management with S-metolachlor and trifloxysulfuron-sodium in cotton field

Planta Daninha, 2006
Objetivou-se com este trabalho desenvolver tecnologia para manejo de plantas daninhas na cultura do algodoeiro, em sistema de plantio convencional, combinando os herbicidas S-metolachlor em pré-emergência com trifloxysulfuron-sodium em pós-emergência ...
R.S. Freitas, L.R. Ferreira, P.G. Berger, A.C. Silva, P.R. Cecon, M.P. Silva   +5 more
doaj   +1 more source

Levantamento preliminar da entomofauna associada às plantas daninhas em cultivos de soja. [PDF]

, 2012
O manejo e o controle de ácaros, insetos e plantas daninhas fazem parte do sistema de produção de qualquer cultivo agrícola, sendo fundamental conhecer suas práticas e ferramentas para alcançar produtividades satisfatórias, sem agredir o ambiente.
NONATO, C. M. S., QUERINO, R., SOARES, A. M. L., SOUZA, V. S., VIVIAN, R.   +4 more
core  

Novitates Gabonenses 91: additions to the grass flora of Gabon [PDF]

Plant Ecology and Evolution, 2019
Background – The number of vascular plant species known to occur in Gabon rises quickly due to renewed collecting and inventory activities, often in little-known or previously uncollected areas.Methods – Herbarium material from BR, BRLU and WAG was ...
Marc S.M. Sosef, Ehoarn Bidault, Archange Boupoya, Olivier Lachenaud, Tariq Stévart   +4 more
doaj   +3 more sources