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Influence of lignin content in soybean seed coat on the incidence of the storage fungus Aspergillus flavus Rev. bras. sementes
Dantas,Ísis Barreto; Oliveira,João Almir de; Santos,Heloisa Oliveira dos; Pinho,Édila Vilela Resende Von; Rosa,Sttela Dellyzete Veiga Franco da.
Seed quality may be affected by several factors, including permeability, color, and lignin content in the seed coat. This study aimed at evaluating influence of lignin content in the tegument of seed samples of six different soybean cultivars, in which half of each sample was inoculated with the fungus Aspergillus flavus, on the physical and physiological quality, and on the seed health, during 180 days storage period, under cold chamber with controlled conditions of temperature and RH. For that, at each interval of 60 days, samples were removed, and the physiological quality of these seeds was assessed by means of moisture and lignin contents; and by tests of seed health, germination, and electrical conductivity. The moisture content of seeds remained...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Inoculation; Seed storage; Resistance to infection.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000400003
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Osmotic priming methodologies in relation to the physiological performance of rangpur lime seeds (Citrus limonia Osbeck) Rev. bras. sementes
Dantas,Ísis Barreto; Guimarães,Renato Mendes; Pinho,Édila Vilela de Rezende Von; Carvalho,Maria Laene Moreira de.
Several mechanisms have been used to promote rapid germination of citrus seeds and uniform seedling emergence. We evaluated the effects of osmotic priming on the physiological performance of Rangpur lime seeds (Citrus limonia Osbeck). Seeds were treated with 30 g of Captan and 10 g of Tecto 600 in 20-litre batches and stored, without drying, at 10 ºC and 50% relative humidity for periods of 3, 6 and 9 months. After each period, seeds were primed at 25 ºC, in the light, by immersion in Poliethylenoglicol (PEG 6000), potassium nitrate (KNO3) and 70% PEG 6000 plus 30% KNO3, all at an osmotic potential of -1.1MPa, for priming periods of 3, 6, 9 and 12 days. Percentage germination, tray emergence and the emergence rate index (ERI) were evaluated. Priming in PEG...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Citrus; Osmoconditioning; Priming; Storage.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222010000300016
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