Results 11 to 20 of about 300 (125)

Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam [PDF]

open access: goldJournal of Seed Science, 2013
Seeds of brazilwood usually have their germinability quickly reduced if stored under natural conditions. Low temperatures, mainly sub-zero, can extend this viability for at least two years. However, there is no information about the germination behavior of these seeds for longer periods, aiming at the germoplasm bank formation.
Juliana Iura de Oliveira Mello   +2 more
openalex   +6 more sources

New cassane diterpenes from Caesalpinia echinata

open access: bronzeFitoterapia, 2011
An investigation of the ethanolic extract from stems of Caesalpinia echinata Lam (Leguminosae-Caesalpinioideae) led to the isolation of five new cassane diterpenes along with known lambertianic acid. Their structures were determined based on spectroscopic methods.
Betânia Barros Cota   +7 more
openalex   +4 more sources

Light as an indicator of ecological succession in brazilwood (Caesalpinia echinata Lam.) [PDF]

open access: diamondBrazilian Journal of Plant Physiology, 2009
The ecophysiological behavior of brazilwood (Caesalpinia echinata Lam.) plants was evaluated as affected by light quantity and quality. Nine-month-old plants were cultivated under 0%, 50%, and 80% artificial shading, and natural shading imposed by a closed canopy for a period of 392 days.
Liana Hilda Golin Mengarda   +5 more
openalex   +4 more sources

Changes in soluble carbohydrates during storage of Caesalpinia echinata LAM. (Brazilwood) seeds, an endangered leguminous tree from the Brazilian Atlantic Forest [PDF]

open access: goldBrazilian Journal of Biology, 2006
Caesalpinia echinata seeds stored in laboratory environmental conditions lose their viability in one month whilst under low temperatures germination is maintained for 18 months of storage.
I. S. Garcia   +4 more
doaj   +2 more sources

Reestudo de Anthomyces brasiliensis em Caesalpinia echinata no Brasil [PDF]

open access: diamondFitopatologia Brasileira, 2005
O fungo Anthomyces brasiliensis foi descrito em 1899 no Rio de Janeiro causando ferrugem em Caesalpinia sp. ou Piptadenia sp. sendo redescoberto no ano de 2001 em Porto Seguro, Bahia, causando a ferrugem do pau-brasil (Caesalpinia echinata). Na descrição original de A.
Cristiane F. L Araújo   +2 more
openalex   +5 more sources

Germination, carbohydrate composition and vigor of cryopreserved Caesalpinia echinata seeds [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2012
The present study investigated the germination and vigor of Caesalpinia echinata (Brazilwood) seeds stored at negative temperatures. Recently harvested seeds were cryopreserved at -18º or -196ºC and periodically evaluated for germination, seed vigor and ...
Rafael Fonsêca Zanotti   +6 more
doaj   +4 more sources

Meios de cultura, reguladores de crescimento e fontes de nitrogênio na regulação da calogênese do pau-brasil (Caesalpinia echinata Lam.) Culture media, growth regulators and nitrogen sources in callus formation regulation of Brazilwood (Caesalpinia echinata Lam.) [PDF]

open access: diamondActa Botânica Brasílica, 2010
A regulação da calogênese é o primeiro passo para a embriogênese somática indireta in vitro. Nesse sentido, foram investigados os efeitos de diferentes meios de cultura, reguladores de crescimento e fontes nitrogenadas no desenvolvimento de calos em ...
Elias Terra Werner   +4 more
doaj   +2 more sources

Morphological and physiological adjustments of Brazilwood (Caesalpinia echinata Lam.) to direct solar radiation [PDF]

open access: diamondBrazilian Journal of Plant Physiology, 2012
This study aimed to characterize the alarm and resistance phases of stress of Caesalpinia echinata under intense irradiance in order to better define its position on forest succession. The alarm phase was identified by rapid reduction in the maximum quantum yield of PSII primary photochemical reactions (ΦP0 = FV/FM) and Performance Index (PIABS ...
Liana Hilda Golin Mengarda   +4 more
openalex   +4 more sources

Examination of Wood Properties of Plantation-Grown Pernambuco (Caesalpinia Echinata) [PDF]

open access: bronzeIAWA Journal, 2013
Caesalpinia echinata (pernambuco or pau-brasil), is recognized as the premier wood for manufacturing stringed instrument bows. Owing to limited supplies and concerns regarding species survival, interest exists in establishing pernambuco plantations to provide future bow-quality wood. For native forest- and plantationgrown woods we examined several wood
Laurence R. Schimleck   +5 more
openalex   +2 more sources

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

open access: diamondJournal 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
openalex   +3 more sources

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