Results 41 to 50 of about 598 (138)

Dominance of Ricinus communis in the Semi‐Arid Region Mediated by Allelopathy

Weed Research, Volume 66, Issue 2, March/April 2026.
ABSTRACT The introduction of invasive alien species can adversely affect the functioning of natural ecosystems. Ricinus communis L., widely present in the Brazilian semi‐arid region, establishes itself in areas with native species, such as Handroanthus impetiginosus (Mart.
Bruno M. Alcântara, Felipe R. Santos, José Anderson S. Silva, José W. Almeida‐Bezerra, José Galberto M. Costa, Delmira C. Silva, Cláudia M. Furlan, Maria Arlene P. Silva   +7 more
wiley   +1 more source

Caracterização morfológica de espécies de trapoeraba (Commelina spp.) utilizando a análise multivariada Morphological characterization of wandering-jew species (Commelina spp.) using multivariate analysis

Planta Daninha, 2007
As espécies Commelina benghalensis, C. villosa, C. diffusa e C. erecta são conhecidas como trapoeraba e, freqüentemente, são confundidas entre si, dificultando o controle químico, o que pode provocar prejuízos econômicos e danos ambientais.
D.C. Rocha, R.A. Rodella, D. Martins
doaj   +1 more source

VARIABILIDADE GENÉTICA EM ACESSOS DE TRAPOERABA (COMMELINA BENGHALENSIS L.)

Arquivos do Instituto Biológico, 2007
RESUMO Com o objetivo de determinar a existência de variabilidade genética em plantas de trapoeraba (Commelina benghalensis L.), foram coletadas plantas em 10 diferentes regiões de quatro Estados do Brasil (SP, MG, MT e MS). Esses acessos foram submetidos a um estudo de variabilidade genética por meio de RAPD com 35 iniciadores arbitrários, os quais ...
Vieira, V.c., Alves, P.l.c.a., Lemos, M.v.f., Sena, J.a.d.   +3 more
openaire   +5 more sources

Eficácia de herbicidas aplicados em trapoeraba (Commelina benghalensis) na região oeste do Estado do Paraná

Revista de Agricultura Neotropical, 2023
A trapoeraba (Commelina spp.) é considerada um gênero tolerante ao glyphosate, apresentando controle reduzido a esse herbicida em estádios avançados.
Matheus Moreira Perissato, Alfredo Junior Paiola Albrecht, Leandro Paiola Albrecht, Willian Bosquette Rosa, Samara Moreira Perissato, Willian Felipe Larini   +5 more
doaj   +1 more source

Strip Crops and Intercrops Outperform Crop Rotations for Weed Management Under Conservation Agriculture in Zimbabwe

Weed Research, Volume 66, Issue 1, January/February 2026.
ABSTRACT High weed infestation remains a major constraint on crop productivity for smallholder farmers practising Conservation Agriculture (CA). Fewer, more diverse weeds are desirable to reduce competition and provide ecosystem services. Crop diversification can help, but it is not yet clear which species combinations and layouts are most effective ...
Betty Rutendo Masamba, Chloe MacLaren, Stanford Mabasa, Regis Chikowo, Christian Thierfelder   +4 more
wiley   +1 more source

Ecological Diversity of Summer Maize Weed Species in the Western Mid‐Hills of Nepal

International Journal of Agronomy, Volume 2026, Issue 1, 2026.
Maize (Zea mays L.) cultivation in the mid‐hills of Nepal is vital for food security but faces significant yield losses due to weed competition. The two‐year (2023–2024) phytosociological study on summer maize was conducted to assess weed diversity and dynamics in randomly selected 40 farmers’ fields of Puranchaur, Dhikidada, Gharmi, and Lamachaur at ...
Dinesh Marasini, Shrawan Kumar Sah, Santosh Marahatta, Madhav Prasad Neupane, Flavio Boccia   +4 more
wiley   +1 more source

Glifosato aplicado com diferentes concentrações de uréia ou sulfato de amônio para dessecação de plantas daninhas Glyphosate applied with different concentrations of urea or ammonium sulfate for weed desiccation

Pesquisa Agropecuária Brasileira, 2008
Este trabalho foi desenvolvido com o objetivo de avaliar a eficácia do herbicida glifosato, para a dessecação de trapoeraba (Commelina benghalensis) e outras plantas daninhas, quando combinado a diferentes concentrações de sulfato de amônio ou uréia ...
Saul Jorge Pinto de Carvalho, Ana Carolina Ribeiro Dias, Virginia Damin, Marcelo Nicolai, Pedro Jacob Christoffoleti   +4 more
doaj   +1 more source

Commodity risk assessment of Vitis spp. plants from Moldova

EFSA Journal, Volume 24, Issue 1, January 2026.
Abstract The European Commission requests EFSA to provide scientific opinions in the field of plant health in accordance with Article 29 of Regulation (EC) No 178/2002. Annex VI of Commission Implementing Regulation (EU) 2019/2072 lists plants, plant products and other objects whose introduction into the Union from certain third countries is prohibited.
EFSA Panel on Plant Health (PLH), Antonio Vicent Civera, Paula Baptista, Elisavet Chatzivassiliou, Jaime Cubero, Nik Cunniffe, Eduardo de la Peña, Nicolas Desneux, Anna Filipiak, Paolo Gonthier, Beata Hasiów‐Jaroszewska, Hervé Jactel, Blanca B. Landa, Lara Maistrello, David Makowski, Panagiotis Milonas, Nikos T. Papadopoulos, Roel Potting, Hanna Susi, Dirk Jan van der Gaag, Pedro Gómez, Annemarie Fejer Justesen, Andrea Lucchi, Gregor Urek, Jonathan Yuen, Lucia Zappala, Umberto Bernardo, Giovanni Bubici, Anna Vittoria Carluccio, Michela Chiumenti, Francesco Di Serio, Elena Fanelli, Paraskevi Kariampa, Cristina Marzachì, Agata Kaczmarek, Louise Matic, Olaf Mosbach‐Schulz, Anna Berlin   +37 more
wiley   +1 more source

Aspectos metodológicos para análise de depósitos de pulverizações pela determinação dos depósitos pontuais Methodological aspects for spray deposit analysis by punctual deposit determination

Planta Daninha, 2007
Objetivou-se com este trabalho avaliar a variabilidade dos depósitos de traçadores, simulando herbicidas aplicados em pós-emergência, em populações de Brachiaria plantaginea e Commelina benghalensis infestantes da cultura da soja.
R.T. Souza, E.D. Velini, L.A. Palladini
doaj   +1 more source

Update of the Xylella spp. host plant database – Systematic literature search up to 30 June 2025

EFSA Journal, Volume 24, Issue 1, January 2026.
Abstract This scientific report provides an update of the Xylella spp. host plant database, aiming to provide information and scientific support to risk assessors, risk managers and researchers dealing with Xylella spp. Upon a mandate of the European Commission, EFSA created and regularly updates a database of host plant species of Xylella spp.
European Food Safety Authority (EFSA), Vincenzo Cavalieri, Elisa Fasanelli, Giandomenico Furnari, Davide Gibin, Alicia Gutierrez Linares, Pierfederico La Notte, Luca Pasinato, Giuseppe Stancanelli   +8 more
wiley   +1 more source