Results 61 to 70 of about 13,681 (238)

Comportement des mauvaises herbes dans un système de culture en couloirs (Haies de Leucaena leucocephala (Lam) de Wit) [PDF]

open access: yes, 1996
Afin de caractériser l'enherbement, des relevés floristiques pondérés ont été effectués en 1990 et 1991 sur un essai de cultures en couloirs. Dans cet essai, installé depuis 1986 à Bouaké (Côte d'Ivoire), le maïs et le cotonnier sont exploités en l ...
Doumbia, Salif   +2 more
core  

Search for alternate hosts of the coconut Cape Saint Paul Wilt Disease pathogen [PDF]

open access: yes, 2009
Lethal Yellowing disease locally called Cape Saint Paul wilt disease (CSPWD) is the bane of the coconut industry in Ghana and is caused by a phytoplasma.
Dery, Sylvester Kuuna   +5 more
core   +2 more sources

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

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  

Dinâmica populacional de plantas daninhas na cultura do milho em função de adubação e manejo. [PDF]

open access: yes, 2011
O objetivo do trabalho foi avaliar o estabelecimento populacional das comunidades das plantas daninhas, durante seis anos agrícolas consecutivos de milho cultivado no sistema plantio direto orgânico e tradicional, intermediado por um sistema de plantio ...
Corrêa, Maria Lita Padinha   +4 more
core   +3 more sources

Use of arduino‐based potentiometric sensors to measure changes in leaf apoplastic pH in common bean (Phaseolus vulgaris L.)

open access: yesThe Plant Phenome Journal, Volume 8, Issue 1, December 2025.
Abstract Following an abiotic or biotic stress, the pH of the extracellular space or the apoplast of a plant can change dramatically, such as wounding that causes an increase in pH or alkalinization. In this proof‐of‐concept‐study, a newly developed carbon‐based bendable potentiometric sensor was tested for the first time in vivo on common bean ...
Robert McGee   +3 more
wiley   +1 more source

Chemical control of species of genus Commelina [PDF]

open access: yesRevista Ciência Agronômica
The aim of this study was to evaluate control of the species Commelina benghalensis and Commelina diffusa using post-emergent herbicides applied alone and in mixture.
Rúbia de Moura Carneiro   +6 more
doaj   +1 more source

La lutte contre Commelina benghalensis [PDF]

open access: yes, 1994
Fiche technique présentant les caractéristiques botaniques de Commelina benghalensis, les conditions de développement, les méthodes de lutte : dose d'application des ...
Le Bourgeois, Thomas, Marnotte, Pascal
core  

Off‐season crops as a strategy for renovating degraded pastures and improving maize yield in a low‐altitude tropical region

open access: yesAgronomy Journal, Volume 117, Issue 6, November/December 2025.
Abstract Brazil can expand cultivated areas without deforestation by restoring degraded pastures and optimizing grain production through off‐season crops. This study evaluated eight off‐season treatments, including fallow, monocrops, and intercropping combinations, and their effects on maize (Zea mays L.) intercropped with guinea grass (Megathyrsus ...
Sarah V. Pedrão   +7 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

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