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Seed weight of Xylopia aromatica (Annonaceae): quality evaluation from X-ray and seedling emergence Scientia Agricola
Socolowski,Fábio; Cicero,Silvio Moure; Vieira,Daniela Cristine Mascia.
Xylopia aromatica (Lam.) Mart. (Annonaceae) is a native species of the Brazilian Savannah (“Cerrado”) region, recommended for the recovery of degraded areas and also for medicinal use. Seeds of some species of the Annonaceae require a long period to germinate and many studies have focused on determining methods which can rapidly analyze seed quality. The objective of this study was to evaluate the quality of Xylopia aromatica (Lam.) Mart. seeds in accordance to their weight, through X-ray images and emergence test. Seeds were collected from dehiscent follicles with a blower and one portion was separated into weight categories: very light seeds, light seeds and heavy seeds. Another seed portion was separated in water by their density, into those that sank...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian Savannah; Seed processing; Internal morphology; Forestry seed.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000600006
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Storage of seeds of Cnidosculus phyllacanthus Pax & K. Hoffm. AGRIAMBI
Silva,Lígia M. de M.; Aguiar,Ivor B. de; Morais,Déborah L. de; Viegas,Ricardo A.; Silveira,Joaquim A. G..
This work aimed to determine the best environment for conservation of physiological quality of seeds of Cnidosculus phyllacanthus during storage. Seeds with 8.5% moisture content and 86% germinative capacity were filled in containers of different permeability, and storaged at different conditions during 360 days. Seeds packed in permeable container (paper bag) were stored at ordinary room temperature (18 to 25 ºC and 55 to 78% RH), and dry chamber (18 ºC and 60% RH) while those packed in semipermeable (polyethylene bag) and impermeable (glass) containers were stored in cold chamber (10 ºC and 75% RH). Seed moisture content, germinative capacity and germination speed were evaluated each 90 days interval. For all the tested storage conditions, seed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conservation; Forestry seed; Physiological quality.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662005000400024
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Viability of recently harvested and stored Xylopia aromatica (Lam.) Mart. (Annonaceae) seeds Rev. bras. sementes
Socolowski,Fábio; Cicero,Silvio Moure; Vieira,Daniela Cristine Mascia.
Xylopia aromatica is a native species from Brazil's "Cerrado", recommended for restoration ecology and also as a medicine. Its seeds have embryos with morphophysiological dormancy, making nursery propagation difficult. The objective of this study was to verify the efficiency of X-ray and tetrazolium tests for evaluating the viability of three seed lots, stored for different periods. All seeds were X-rayed (13 kV, 350 seconds) and samples used for tetrazolium and germination tests. In the tetrazolium test, seeds were submitted to six treatments at two temperatures (25 and 30 °C) with imbibition in distilled water and immersion in three concentrations of tetrazolium solution (0.5, 0.75 and 1%) at the two imbibition temperatures. Seeds for the germination...
Tipo: Info:eu-repo/semantics/article Palavras-chave: "pimenta-de-macaco"; Forestry seed; Image analysis; Seed quality.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300007
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