Results 41 to 50 of about 2,034 (144)

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

open access: yesWeed 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   +4 more
wiley   +1 more source

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

open access: yesInternational 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   +4 more
wiley   +1 more source

Tres nuevas especies de Commelina (Commelinaceae) del centro de México

open access: yesActa Botanica Mexicana, 2009
En este trabajo se describen como nuevas e ilustran Commelina congestispatha López-Ferrari, Espejo et Ceja, Commelina ramosissima López-Ferrari, Espejo et Ceja y Commelina queretarensis López-Ferrari, Espejo et Ceja. La primera es conocida de los estados
Ana Rosa L\u00F3pez Ferrari   +2 more
doaj  

Levantamento de plantas infestantes em lavouras de milho 'safrinha'no estado de São Paulo Weed survey in autumn corn crops in the state of São Paulo, Brazil

open access: yesPlanta Daninha, 1999
Fez-se o levantamento da flora infestante na lavoura do milho "safrinha" nas duas principais regiões de plantio no Estado de São Paulo, em 1995. Foram visitadas 85 lavouras na Região do Médio Vale do Paranapanema e 29 na Região Norte.
Aildson P. Duarte, Robert Deuber
doaj   +1 more source

Commodity risk assessment of Vitis spp. plants from Moldova

open access: yesEFSA 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)   +37 more
wiley   +1 more source

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

open access: yesEFSA 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)   +8 more
wiley   +1 more source

A Deep Metagenomic Snapshot as a Proof‐of‐Concept for Resource Generation: Simultaneous Assembly of Host, Food, and Microbiome Genomes From Stingless Bee Larval Food

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
This study serves as a proof‐of‐concept, demonstrating that deep shotgun sequencing of a single complex sample—stingless bee larval food—can simultaneously generate multiple genomic resources. From this dataset, we assembled three genomes (a near‐complete bacterium, a draft host mitochondrion, and a fragmented plant chloroplast) with varying ...
Carlos Ueira‐Vieira   +6 more
wiley   +1 more source

Parallel evolution of TCP and B-class genes in Commelinaceae flower bilateral symmetry

open access: yesEvoDevo, 2012
Background Flower bilateral symmetry (zygomorphy) has evolved multiple times independently across angiosperms and is correlated with increased pollinator specialization and speciation rates.
Preston Jill C, Hileman Lena C
doaj   +1 more source

Commelina benghalensis

open access: yes, 1997
Commelina benghalensis est une mauvaise herbe majeure qui se développe dans les champs de coton en culture intensive. Une fois données les caractéristiques botaniques de cette mauvaise herbe, cette fiche présente des méthodes de lutte avec des doses d'application d ...
Le Bourgeois, Thomas, Marnotte, Pascal
openaire   +1 more source

Anthropogenic Disturbances and Invasion of Mikania micrantha Threaten Rauvolfia serpentina Populations in Nepal

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
This research article investigate the current population dynamics of a threatened medicinal plant Rauvolfia serpentina.in differentially disturbed region of tropical forest in eastern Nepal. The findings revealed the cumulative impacts of over exploitation and invasion of Mikania micrantha have negatively impacted the population dynamics of R ...
Ajay Neupane   +2 more
wiley   +1 more source

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