Results 41 to 50 of about 240 (154)

Temperatura, luz e substrato para germinação de sementes de Pau-Brasil (Caesalpinia echinata Lam., Leguminosae - Caesalpinioideae) Temperature, light and substrate for germination of seeds of Brazilwood (Caesalpinia echinata Lam., Leguminosae - Caesalpinioideae)

open access: yesRevista Árvore, 2007
Programas de preservação de Caesalpinia echinata, espécie considerada em risco de extinção, incluem a conservação ex situ, que poderia ser ainda mais intensificada pelo armazenamento, no longo prazo, de suas sementes.
Juliana Iura de Oliveira Mello   +1 more
doaj   +1 more source

Morfologia polínica de Caesalpinia echinata Lam. (Leguminosae - Caesalpinioideae) [PDF]

open access: yesRevista Brasileira de Botânica, 2003
Foram examinados os graos de polen de sete exsicatas de C. echinata. O material polinico foi acetolisado, medido, descrito e fotodigitalizado sob microscopia optica e microscopia eletronica de varredura. Os graos de polen de C. echinata sao, medios a grandes, suboblatos a oblato-esferoidais, âmbito circular, 3-brevicolporados, colpo com margem bem ...
openaire   +3 more sources

Seeds of Caesalpinia echinata Lam. Under Water Stress at Different Temperatures

open access: yesJournal of Agricultural Science, 2020
The Caesalpinia echinata Lam. species, belongs to the Fabaceae family, popularly known as Pau Brazil, is a large tree, native to Brazil, that can be found from Ceará to Rio de Janeiro, with a relevant national historic and economic value. The objective of this study was to evaluate the effects of water stress at different temperatures on ...
Caroline Marques Rodrigues   +7 more
openaire   +2 more sources

Microsatellite markers for Caesalpinia echinata Lam. (Brazilwood), a tree that named a country [PDF]

open access: yesConservation Genetics, 2007
Caesalpinia echinata, commonly known as Pau-brasil (Brazilwood), the famous tree that named Brazil is native to the Atlantic forest. Men extensively exploited it ever since discovery and colonial times due to its value as a source of red dye. As a consequence, Brazilwood is a threatened species with populations reduced to small forest fragments.
Sônia Cristina Oliveira Melo   +6 more
openaire   +1 more source

Morphophysiological Behavior and Cambial Activity in Seedlings of Two Amazonian Tree Species under Shade

open access: yesJournal of Botany, Volume 2015, Issue 1, 2015., 2015
Variations in light intensity can lead to important anatomical and morphophysiological changes in plants. Aiming to increase knowledge about the Amazonian tree species, this study examines the influence of shade on the cambial activity and development of Parkia gigantocarpa Ducke and Schizolobium parahyba var.
Monyck Jeane dos Santos Lopes   +4 more
wiley   +1 more source

HERANÇA E LIGAÇÃO EM LOCOS ISOENZIMÁTICOS DE Caesalpinia echinata L. (PAU-BRASIL)

open access: yesRevista do Instituto Florestal, 2004
Este artigo apresenta o estudo da variação isoenzimática em Caesalpinia echinata L. (pau-brasil). Onze sistemas enzimáticos (ACP, DIA, EST, G6PDH, GOT, LAP, MDH, PGI, PRX, SKDH e 6PGDH) codificando dezoito locos (Acp-1, Est-3, Dia-1, G6pdh-1, Got-1, Lap-
João Del Giudice Neto   +2 more
doaj   +1 more source

A review of the prevalence, utility, and caveats of using chloroplast simple sequence repeats for studies of plant biology

open access: yesApplications in Plant Sciences, Volume 2, Issue 12, December 2014., 2014
Microsatellites occur in all plant genomes and provide useful markers for studies of genetic diversity and structure. Chloroplast microsatellites (cpSSRs) are frequently targeted because they are more easily isolated than nuclear microsatellites. Here, we quantified the frequency and uses of cpSSRs based on a literature review of over 400 studies ...
Gregory L. Wheeler   +4 more
wiley   +1 more source

Germinação de sementes e formação de mudas de Caesalpinia echinata Lam. (Pau - Brasil): efeito de sombreamento Seed germination and seedling growth of Caesalpinia echinata Lam. (Brazilwood): shading effect

open access: yesRevista Árvore, 2005
Caesalpinia echinata Lam. (pau-brasil) é a árvore nacional do Brasil, possui grande potencial ornamental, estando atualmente em perigo de extinção devido à exploração extrativista.
Francismar Francisco Alves Aguiar   +6 more
doaj   +1 more source

Vegetative responses to temperature and photoperiod in saplings of brazilwood (Caesalpinia echinata Lam., Leguminosae) [PDF]

open access: yesBrazilian Journal of Plant Physiology, 2006
Caesalpinia echinata Lam. (brazilwood) is an endangered tree species occurring along the eastern coast of Brazil from latitudes 5°56´S to 22°56´S. With such a range of distribution it is expected that temperature and daylength may affect plant development, which was examined in this study.
Rondon, Josimara N.   +4 more
openaire   +2 more sources

Using Random Amplified Polymorphic DNA to Assess Genetic Diversity and Structure of Natural Calophyllum brasiliense (Clusiaceae) Populations in Riparian Forests

open access: yesInternational Journal of Forestry Research, Volume 2014, Issue 1, 2014., 2014
The objective of this study was to assess the genetic variability in two natural populations of Calophyllum brasiliense located along two different rivers in the state of Minas Gerais, Brazil, using RAPD molecular markers. Eighty‐two polymorphic fragments were amplified using 27 primers.
Evânia Galvão Mendonça   +6 more
wiley   +1 more source

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