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	Provedor de dados PAB (1) R. Bras. Zootec. (1) Autor Usberti,Roberto (2) Ellis,Richard Harold (1) Pozitano,Marina (1) Roberts,Eric Hywel (1) Palavra-chave Viability equation (2) Gossypium hirsutum (1) Hardseededness (1) Pennisetum purpureum × P. glaucum (1) Recurrent selection (1) Seed storage (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2009 (1) 2006 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Prediction of cottonseed longevity PAB Usberti,Roberto; Roberts,Eric Hywel; Ellis,Richard Harold. The objective of this work was to determine the viability equation constants for cottonseed and to detect the occurrence and depletion of hardseededness. Three seedlots of Brazilian cultivars IAC-19 and IAC-20 were tested, using 12 moisture content levels, ranging from 2.2 to 21.7% and three storage temperatures, 40, 50 and 65ºC. Seed moisture content level was reached from the initial value (around 8.8%) either by rehydration, in a closed container, or by drying in desiccators containing silica gel, both at 20ºC. Twelve seed subsamples for each moisture content/temperature treatment were sealed in laminated aluminium-foil packets and stored in incubators at those temperatures, until complete survival curves were obtained. Seed equilibrium relative... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gossypium hirsutum; Seed storage; Hardseededness; Viability equation. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000900013 Seed controlled deterioration of three interspecific elephant grass × pearl millet hybrids R. Bras. Zootec. Pozitano,Marina; Usberti,Roberto. In order to allow using seeds from three interspecific elephant grass ×pearl millet hybrids (Original, Cutting and Grazing-types) to set pasture fields, it became necessary to analyze their performances in relation to storage conditions and controlled deterioration. Five moisture content levels and three storage temperatures (40, 50 and 65°C) have been tested for each hybrid. Seed sub samples for each moisture content and storage temperature combination were sealed in laminated aluminum foil packages and stored at those temperatures until complete survival curves have been obtained. The recurrent selection increased seed initial quality (Ki) for grazing-type population (lower and more tillered plants); however inverse results were observed for cutting-type... Tipo: Info:eu-repo/semantics/article Palavras-chave: Pennisetum purpureum × P. glaucum; Recurrent selection; Viability equation. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000300005 Registros recuperados: 2 Primeira ... 1 ... Última

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