Results 11 to 20 of about 9,044 (165)

Untangling the tribe Coreopsideae (Asteraceae) beyond taxonomic concepts [PDF]

open access: yesActa Botânica Brasílica, 2023
It is presented the first taxonomic study of the tribe Coreopsideae (Asteraceae) in Northeastern Brazil. A total of seven genera and 16 species were recorded in the region, with Bidens being the richest genus (8 spp.). Bidens tenera and Cosmos bipinnatus
Maria Liris Barbosa   +2 more
doaj   +1 more source

Habitat-Based Predictions of Bridle Shiner (<i>Notropis bifrenatus</i>) in the Northeastern United States. [PDF]

open access: yesEcol Evol
We developed local and regional models for Maine and New Hampshire that may be used to focus bridle shiner (Notropis bifrenatus) surveys on areas with high predicted habitat suitability. This is significant because bridle shiners receive protection or concern status in thirteen states and two Canadian provinces: Limited data show that bridle shiners ...
Katz LS   +4 more
europepmc   +2 more sources

Update of the <i>Xylella</i> spp. host plant database - Systematic literature search up to 30 June 2025. [PDF]

open access: yesEFSA J
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
europepmc   +2 more sources

Epoxy tetrahydrophthalimides as potential bioactive agents: synthesis and computational study. [PDF]

open access: yesPest Manag Sci
Epoxy tetrahydrophthalimides were synthesized and evaluated for phytotoxic activity. Some compounds showed greater inhibition than S‐metolachlor against Sorghum bicolor. Docking studies indicated interaction with mitogen‐activated protein kinase, suggesting it as a potential target.
Amorim Torrent KB   +5 more
europepmc   +2 more sources

Naturalized and Invasive Species Integrate Differently in the Trait Space of Local Plant Communities. [PDF]

open access: yesEcol Lett
We investigated the relative positions of native, non‐invasive naturalized and invasive plant species in the functional trait space of local communities in six different habitat types. We show that naturalized species integrate near the center of the multidimensional functional trait space of each community, whereas invasive species tend to occupy the ...
Divíšek J   +7 more
europepmc   +2 more sources

Floral Calendar of Honeybee Plants in Kellem and West Wollega Zone, Western Ethiopia

open access: yesInternational Journal of Forestry Research, 2023
Beekeeping has significantly contributed to environmental conservation and the preservation of natural resources. Although the quality and quantity of flora available play a major role in the success of the sector, the botanical makeup of natural ...
Ofijan Tesfaye, Etenesh Mekonnen
doaj   +1 more source

Antimicrobial activity of Asteraceae species against bacterial pathogens isolated from postmenopausal women.

open access: yesPLoS ONE, 2020
PurposeInvestigation of the antibacterial action of aqueous extracts of Bidens sulphurea, Bidens pilosa, and Tanacetum vulgare, species of Asteraceae family that are popularly used for the treatment of genito-urinary infection.MethodsThe minimum ...
Marcela Oliveira Chiavari-Frederico   +14 more
doaj   +1 more source

Efeito da pressão de trabalho e de modelos de pontas de pulverização sobre a eficiência de herbicida de contato em soja Operating pressure and spray nozzles effects on the efficiency of contact herbicide in soybeans

open access: yesEngenharia Agrícola, 2007
Nos últimos anos, nas aplicações de herbicidas de contato em pós-emergência, tem-se verificado tendência de redução do volume de calda e a utilização de pontas de pulverização que operam com baixas pressões.
Walter Boller, Marcos Machry
doaj   +1 more source

Ant Diversity and Stratification in an Amazonian Rainforest. [PDF]

open access: yesEcol Evol
We examined the three strata of an Amazonian rainforest (e.g., the ground and leaf litter, understory and canopy) using only two sampling techniques and analyzed their functional traits. We identified 494 ant species from 10 subfamilies and 77 genera over ≈3.0 ha, showing that they are species rich and abundant, particularly at ground level.
Delabie JHC   +6 more
europepmc   +2 more sources

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

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