Results 81 to 90 of about 1,217 (174)

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

open access: yesWeed 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   +7 more
wiley   +1 more source

La moniliose du cacaoyer [PDF]

open access: yes, 1996
La moniliose du cacaoyer due à Moniliophthora roreri cause depuis près d'un siècle de très sérieux dégâts dans plusieurs pays d'Amérique latine. Le champignon attaque les cabosses, et, après une période d'incubation de 40 à 60 jours, des taches brunes ...
Thévenin, Jean-Marc, Trocmé, Olivier
core  

Plantas trepadoras: tipo biológico y clasificación [PDF]

open access: yes, 2012
Un tipo biológico es una categoría morfo-estructural con correlato ecológico (adaptativo) que se aplica a diversas especies de plantas, de distintos grupos taxonómicos.
Cabanillas, Pablo Alejandro   +1 more
core  

Nuevo método para la interpretación ontogénica de tallos con variantes cambiales

open access: yesLilloa, 2016
In this contribution is proposed a method for generating hypotheses on the ontogeny of stems with cambial variants. First, the topic of stems with cambial variants are summarized. Then the main production and modifying processes of the stem tissues are reviewed: Cell Division associated and non-associated to meristems; Enlargement, including the ...
openaire   +3 more sources

Impacts of Changes in Climate and Atmospheric Chemistry on Northern Forest Ecosystems and their Boundaries: Research Directions [PDF]

open access: yes, 1989
In response to numerous suggestions with the research community that boreal forests should be targeted for analyses of potential ecosystem response to impending major changes in climate and atmospheric composition, a task-force meeting for research ...
Antonovsky, M.Y.   +2 more
core  

Divergent selection predating the Last Glacial Maximum mainly acted on macro-phenotypes in Norway spruce. [PDF]

open access: yesEvol Appl, 2023
Tiret M   +7 more
europepmc   +1 more source

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