Results 71 to 80 of about 19,578 (221)

Water stress and temperature on germination and vigor of Handroanthus impetiginosus (Mart. ex DC)

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
Water availability and temperature are among the main abiotic factors that influence seed germination and vigor, since they act directly on biochemical and physiological processes, which result in the production of the primary root. The objective of this
Paulo C. S. Santos   +5 more
doaj   +1 more source

Implicações químicas na sistemática e filogenia de Bignoniaceae

open access: yesQuímica Nova, 2012
Our solemn homage to the great Master Otto R. Gottlieb who knew how to teach the mystery of evolutionary relationships between chemistry and its natural sources.
Franciane Auxiliadora Cipriani   +3 more
doaj   +1 more source

Phenological description for the initial development stage of five Brazilian native forest species according to BBCH scale

open access: yesAnnals of Applied Biology, Volume 188, Issue 2, Page 561-581, March 2026.
Morphology of the two main growth stages—germination and initial development of the forest species Ceiba speciosa (co, cotyledon; eo, eophyll; hp, hypocotyl; me, metaphyll; pk, prickles; pr, primary root; se, seed; sr, secondary root). Abstract A specific phenological scale designated for each forest species facilitates the standardization of different
Mábele de Cássia Ferreira   +2 more
wiley   +1 more source

Seasonal and Within‐Day Variation on Hummingbirds Visits and Dominance Hierarchy in a Brazilian Cerrado Area

open access: yesAustral Ecology, Volume 51, Issue 3, March 2026.
ABSTRACT Plant‐hummingbird interaction networks can be influenced by environmental conditions and resources, which vary seasonally and daily. We aimed to understand how variations in these parameters across these two temporal windows influence patterns of plant‐hummingbird interactions and hummingbirds dominance hierarchies in a Brazilian Cerrado ...
Jeane Lima‐Passos   +3 more
wiley   +1 more source

Hydroalcoholic extract of leaves of Arrabidaea brachypoda (DC.) Bureau present antispasmodic activity mediated through calcium influx blockage

open access: yesRevista de Ciências Farmacêuticas Básica e Aplicada, 2020
Aim: Since other species of the Bignoniaceae Family presented of antispasmodic activity, it was decided, by chemotaxonomic criterion, to determine the antispasmodic activity of the leaves of Arrabidaea brachypoda.
Fabio de Souza Monteiro   +5 more
doaj  

Pandorea jasminoides Bower Plant, Bower Vine

open access: yesEDIS, 2007
This document provides a detailed overview of the bower plant (Pandorea jasminoides), highlighting its characteristics, growth habits, and uses. The bower plant is an evergreen vine known for its fast growth, glossy dark green foliage, and attractive ...
Edward Gilman
doaj   +1 more source

A Survey of the Ecology of Tecoma stans [PDF]

open access: yes, 1964
Tecoma stans (L.) Juss. ex H.B.K., a shrub or small tree in the Bignoniaceae, is a widely distributed polymorphic complex of the Western Hemisphere tropics and subtropics, and is commonly planted as an ornamental throughout the tropical world.
Pelton, John
core   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): II. Solute Concentrations and Flux Dynamics

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Trees can redirect large volumes of rainwater to the base of their stems. This stemflow not only redistributes water but also channels canopy‐derived solutes to the forest floor. Building on research showing canopy geometry and bark properties govern stemflow volumes, we examined how those same traits modulate the biogeochemical side of this flux. Over
Jeferson Alberto de Lima   +5 more
wiley   +1 more source

Cryopreservation of Lavender Trumpet Tree (Handroanthus impetiginosus) Seeds

open access: yesHorticulturae
In response to the near-threatened status of Handroanthus impetiginosus, primarily due to habitat loss and illegal logging, this study examines how X-ray imaging and cryopreservation impact the seed quality and viability essential for conservation. Seeds
Thiago Souza Campos   +6 more
doaj   +1 more source

Dolichandrone platycalyx: New entomophilous pollen-A report on pollen sensitization in allergic individuals [PDF]

open access: yes, 2011
Background: Dolichandrone platycalyx, commonly known as Nile trumpet tree, is believed to have originated in East Africa. However, this and the variants of this tree are found in Europe, Asia, and America (California and Florida).
Abraham, J.N.   +6 more
core   +1 more source

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