Results 41 to 50 of about 188 (148)

Estudo etnobotânico sobre plantas medicinais na comunidade de Curral Velho, Luís Correia, Piauí, Brasil

open access: yesBiotemas, 2015
A utilização das plantas como medicamento no estado do Piauí tem sido uma prática comum que vem sendo transmitida de geração a geração. Este estudo teve por objetivo analisar o uso de plantas medicinais pelos moradores da comunidade Curral Velho ...
Jesus Rodrigues Lemos   +1 more
doaj   +1 more source

Plant density and variety effect on yield, leaf spot disease, weed species richness and diversity of groundnut production in northern Ghana

open access: yesWeed Biology and Management, Volume 24, Issue 2, Page 71-87, June 2024.
Abstract Low plant density and weed infestation are major challenges for groundnut production in northern Ghana. A two‐year on‐farm study was conducted to determine the effect of plant density and variety on grain and fodder yields, incidence of leaf spot disease, weed species diversity and biomass.
Nurudeen Abdul Rahman   +4 more
wiley   +1 more source

Germinación, diámetro de semilla y tratamientos pregerminativos en especies con diferentes finalidades de uso

open access: yesAgronomía Mesoamericana, 2017
Evaluar la germinación de especies vegetales permite conocer sus características y entender los factores que influyen en este proceso. El objetivo de este trabajo fue conocer las características de germinación de las especies Eugenia stipitata McVaugh ...
Ricardo Vinicio Abril-Saltos   +3 more
doaj   +1 more source

Plant‐derived compounds as potential leads for new drug development targeting COVID‐19

open access: yesPhytotherapy Research, Volume 38, Issue 3, Page 1522-1554, March 2024.
Abstract COVID‐19, which was first identified in 2019 in Wuhan, China, is a respiratory illness caused by a virus called severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2). Although some patients infected with COVID‐19 can remain asymptomatic, most experience a range of symptoms that can be mild to severe. Common symptoms include fever, cough,
Lingxiu Liu, Maxim Kapralov, Mark Ashton
wiley   +1 more source

Interspecific Crosses Yield Sterile Triploid Porterweed: A Sustainable Alternative to Invasive Nettleleaf Porterweed

open access: yesHortScience
Porterweed plants (Stachytarpheta sp.), notably the nettleleaf porterweed (Stachytarpheta cayennensis), present both ecological benefits and challenges.
S. Brooks Parrish   +3 more
doaj   +1 more source

Impacts of Type of Fallow and Invasion by Chromolaena odorata on Weed Communities in Crop Fields in Cameroon

open access: yesEcology and Society, 2004
In the humid forest regions of southern Cameroon in central Africa, sectoral and macroeconomic policy reforms introduced in the late 1980s have led to intensified land use, which in turn has resulted in, among other environmental consequences, shortened ...
Martine Ngobo   +2 more
doaj   +1 more source

Métodos de superação da dormência de sementes de plantas daninhas de pastagens cultivadas da Amazônia Dormancy overcoming methods of weed seeds from Amazonian cultivated pasture

open access: yesPlanta Daninha, 1998
O objetivo do presente trabalho foi o de avaliar diferentes métodos de superação da dormência de sementes de plantas daninhas de áreas de pastagens cultivadas da região amazônica brasileira.
Antonio P. da S. Souza Filho   +2 more
doaj   +1 more source

Butterflies (Lepidoptera: Papilionoidea and Hesperioidea) visiting flowers in the Botanical Garden of the Federal University of Santa Maria, Santa Maria, RS, Brazil [PDF]

open access: yesBiotemas, 2008
Urban environments, such as parks and gardens, may offer many alimentary resources, besides shelter and favorable conditions, for butterfly survival. This study aimed to make an inventory of butterflies visiting flowers in the Botanical Garden of the ...
Ana Beatriz Barros de Morais   +2 more
doaj  

Stachytarpheta cayennensis (Rich.) Vahl: constituição fitoquímica preliminar e efeito antibacteriano / Stachytarpheta cayennensis (Rich.) Vahl: preliminary phytochemical constitution and antibacterial effect

open access: yes, 2020
O uso de Stachytarpheta cayennensis (Rich.) Vahl, ou gervão, é amplamente difundido pela população para o tratamento de inflamações e disfunções do trato gastrointestinal. Os relatos da literatura sobre seus metabólicos secundários e efeitos farmacológicos são escassos.
Dalmagro, Ana Paula, Gasparetto, Adriana
openaire   +1 more source

Antioxidant activity of natural compounds of Stachytarpheta cayennensis (Rich.) Vahl, Verbenaceae, by scavenger of mitochondrial reactive oxygen species [PDF]

open access: yesRevista Brasileira de Farmacognosia, 2011
The etiology of a range of diseases is associated with an excessive generation of reactive oxygen species (ROS). Exacerbated ROS production leads to mitochondrial dysfunction, cellular damage and apoptosis. Nowadays, many strategies are being developed for the targeted delivery of antioxidants compounds to mitochondria, trying to minimize the damages ...
Souza, Pierre André de   +5 more
openaire   +3 more sources

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