Results 71 to 80 of about 21,163 (215)

Germinación de las semillas en algunas especies americanas de Fabaceae y Bignoniaceae cultivadas en Sevilla (SO España) [PDF]

open access: yes, 2006
Entre las especies que crecen en el Jardin Americano de Sevilla, se encuentran varias especies americanas de Fabaceae y Bignonoaceae.SE exponen en este artículo las capacidad de germinación y la dimanica de las semillas de Caesalpinia spinosa, C ...
Andrés Camacho, María Cristina   +4 more
core  

Spermatophyta Molecular Clock: Time Drift and Recent Acceleration

open access: yesPlant-Environment Interactions, Volume 6, Issue 5, October 2025.
Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Soichi Osozawa
wiley   +1 more source

Radical scavenging and antioxidant activity of anthyllis vulneraria leaves and flowers [PDF]

open access: yes, 2018
The main targets of this work were to determine the phenolic content of Anthyllis vulneraria (A. vulneraria) leaves and flowers and to evaluate their antioxidant activity.
Almajano Pablos, María Pilar   +2 more
core   +2 more sources

Actividad antibacteriana de Caesalpinia spinosa (tara) sobre Porphyromonas gingivalis

open access: yesOdontología Sanmarquina, 2016
Objetivo: Determinar la actividad antibacteriana in vitro de cinco concentraciones (6,25; 12,5; 25; 50 y 75 mg/mL) del extracto alcohólico de la Caesalpinia spinosa “tara” (EACS) sobre Porphyromonas gingivalis.
Alex Montenegro Chipana   +1 more
doaj   +1 more source

Taxas de crescimento de mudas de catingueira submetidas a diferentes substratos e sombreamentos Growth rates of catingueira seedlings submitted to different substrates and shading

open access: yesRevista Árvore, 2009
A catingueira (Caesalpinia pyramidalis Tul.) é uma espécie nativa da caatinga dotada de grande resistência à seca e de grande potencial econômico. No entanto, não existem informações sobre o desenvolvimento dessa espécie em diferentes substrates e ...
Bárbara França Dantas   +6 more
doaj   +1 more source

Bryophytes from some Caatinga areas in the state of Bahia (Brazil) [PDF]

open access: yes, 1998
The caatinga is a deciduous and xerophilous vegetation that covers large areas in Brazil. An irregular rainfall with a marked dry period is a characteristic feature.
Albertos, Belén   +2 more
core  

Extraction, purification and characterization of galactomannans from non-traditional sources [PDF]

open access: yes, 2009
This work presents a methodology for the extraction of galactomannans from seeds of four different species of Leguminosae (Adenanthera pavonina, Caesalpinia pulcherrima, Gleditsia triacanthos and Sophora japonica) to be used e.g.
Cerqueira, M. A.   +10 more
core   +1 more source

Estudo das estruturas anatômicas e de algumas propriedades físicas da madeira de 14 espécies ocorrentes em áreas de Caatinga [PDF]

open access: yes, 1980
Foram estudadas as madeiras de 14 espécies, ocorrentes em áreas de caatingas do Nordeste. Além das análises das estruturas anatômicas, foi considerado o peso específico e as espécies em questão submetidas ao teste de luz ultravioleta de ondas ...
Alves, José Luiz de Hamburgo   +1 more
core  

Preferência de saúva limão, Atta sexdens rubropilosa Forel, 1908 (Hymenoptera, formicidae) a diferentes espécies florestais, em condições de laboratório

open access: yesCiência Florestal, 2002
It was evaluated the cutting ant preference of Atta sexdens rubropilosa Forel, 1908, to native and exotic forest tree species, in laboratory conditions.
Otávio Filho Peres   +2 more
doaj  

Facile synthesis of reduced graphene oxide using Caesalpinia sappan L. extract as green reducing agent

open access: yesNext Materials
s: Facile synthesis of reduced-graphene oxide (rGO) has been conducted in this study using the extract of Caesalpinia sappan L. as a green reducing agent.
Lia Destiarti   +3 more
doaj   +1 more source

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