Results 21 to 30 of about 2,678 (199)

Production of reactive oxygen species in Dalbergia nigra seeds under thermal stress [PDF]

Journal of Seed Science, 2014
Seed germination is dependent on abiotic factors, temperature being one of the main ones, whose influence causes seed damage under extreme conditions. The aim of the present study was to investigate the effect of different temperatures during germination
Antônio César Batista Matos, Eduardo Euclydes de Lima e Borges, Marcelo Coelho Sekita   +2 more
doaj   +3 more sources

Substrato, temperatura de germinação e desenvolvimento pós-seminal de sementes de Dalbergia nigra [PDF]

Pesquisa Agropecuaria Brasileira, 2006
O objetivo deste trabalho foi definir o tipo de substrato e a temperatura mais adequada à germinação de sementes de Dalbergia nigra (Vell.) Fr. All. Ex Benth (jacarandá-da-bahia), e conhecer a morfologia de seu desenvolvimento pós-seminal e caracterizar as plântulas normais, o tipo de germinação e os padrões de anormalidade.
Andrade, Acs
exaly   +4 more sources

Micropropagation of Dalbergia nigra, an endangered Brazilian forest tree [PDF]

Revista Agrogeoambiental, 2021
We report in this work an in vitro propagation method for Dalbergia nigra using nodal segments from germinated seeds in vitro. Plant material was cultivated on MS medium supplemented with 6-benzyladeninepurine (BAP: 0 μM, 1.11 μM and 2.22 μM) and Naphthaleneacetic acd (NAA: 0.27 μM), combined with different amounts of subcultures for induction of shoot
Rodrigo Oliveira Almeida, Sarah Santos da Silva, Ana Catarina Monteiro Carvalho Mori da Cunha   +2 more
doaj   +2 more sources

Photochemical activity in Dalbergia nigra (Vell.) Fr. Allem. seedlings submitted to water deficit [PDF]

Journal of Forest Science, 2018
In this study, we evaluated the influence of the daily variation of both intensity of photosynthetically active radiation (PAR) and temperature on chlorophyll a fluorescence parameters in Jacarandá-da-Bahia seedlings submitted to two treatments: T1 ...
Natiele SANDRINI CELOVANE, Jadson BONINI ZAMPIROLLO, Thais SILVA COSTA, Clodoaldo LEITES PINHEIRO, Diolina MOURA SILVA, Elisa MITSUKO AOYAMA, Antelmo RALPH FALQUETO   +6 more
doaj   +2 more sources

Alterations in seed reserves of Dalbergia nigra ((Vell.) Fr All. ex Benth.) during hydration [PDF]

Journal of Seed Science, 2013
Seed imbibitions is the first stage of the germination process and is characterized by the hydration of tissues and cells and the activation and/or induction of the enzymes responsible for mobilizing reserves for respiration and the construction of new cell structures. The objective of this study was to investigate the alterations in reserve substances
Ataíde, Glauciana da Mata, Borges, Eduardo Euclydes de Lima e, Gonçalves, José Francisco de Carvalho, Guimarães, Valéria Monteze, Flores, Andressa Vasconcelos, Bicalho, Elisa Monteze   +5 more
exaly   +5 more sources

Crescimento de Dalbergia nigra (Vell.) Allemão ex Benth sob diferentes doses de cálcio, magnésio e enxofre

Revista Árvore, 2014
O jacarandá (Dalbergia nigra (Vell.) Allemão ex Benth) é uma espécie da família Leguminosae-Fabaceae, com potencial para diversos usos, incluindo recuperação de áreas degradadas. Neste trabalho, objetivou-se verificar o crescimento das mudas de jacarandá-
Elzimar de Oliveira Gonçalves, Haroldo Nogueira de Paiva, Julio Cesar Lima Neves, Valéria Hollunder Klippel, Marcos Vinicius Winckler Caldeira   +4 more
doaj   +3 more sources

"Touch&Play" Wood Typification by the MasSpec Pen. [PDF]

J Mass Spectrom
ABSTRACT We have investigated the ability of a MasSpec Pen (MSPen) “three‐in‐one” (extraction, transfer, and ionization) device coupled to a mass spectrometer to provide instantaneous chemical profiles that could promptly characterize wood samples from the mahogany (Meliaceae) family.
Reis A, Carvalho CP, de Lima IL, Mansoldo FRP, Vermelho AB, Simas RC, Eberlin LS, Eberlin MN.   +7 more
europepmc   +2 more sources

Separation of Dalbergia nigra from Dalbergia spruceana

, 2006
Regis B. Miller, Michael C. Wiemann
exaly   +3 more sources

Nesting on Cell Phone Towers: An Inexplicable Breeding Strategy by Asian Woollynecks <i>Ciconia episcopus</i> in Bangladesh. [PDF]

Ecol Evol
In this paper, we documented some crucial nesting and breeding information on Asian Wollynecks. We used camera traps as a means of passive monitoring and identified Large‐billed crow Corvus macrorhynchos and House crow Corvus splendens as potential nest predators.
Sadik AS, Datta AK.
europepmc   +2 more sources

ALTERAÇÕES FISIOLÓGICAS DURANTE A HIDRATAÇÃO DE SEMENTES DE Dalbergia nigra ((Vell.) Fr. All. ex Benth.)

Ciência Florestal, 2016
During germination, a series of sequential events occur in seeds in response to endogenous and / or exogenous factors. The objective of this study was to investigate the physiological changes resulting from the controlled hydration ...
Glauciana da Mata Ataíde, Eduardo Euclydes de Lima e Borges, José Francisco de Carvalho Gonçalves, Valéria Monteze Guimarães, Andressa Vasconcelos Flores   +4 more
doaj   +1 more source