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Revista Brasileira de Sementes

Print version ISSN 0101-3122

Abstract

LOPES, José Carlos; MARTINS-FILHO, Sebastião; TAGLIAFERRE, Cristiano  and  RANGEL, Otacílio José Passos. Physiological seed quality evaluation of soybean produced in Alegre, Espirito Santo state. Rev. bras. sementes [online]. 2002, vol.24, n.1, pp.51-58. ISSN 0101-3122.  https://doi.org/10.1590/S0101-31222002000100008.

This research was carried out in the Laboratory of Seeds Technology and Analysis of the Fitotecnia Department of the Agrarian Science Center of Federal University of Espirito Santo, Alegre, Espirito Santo State, Brazil, out with the objective to evaluated the physiological seed quality to ten soybean genotypes: BRSMG - Garantia, MGBR-46 (Conquista), MGBR 94-7916, FT-104, CAC-1, MGBR 95-19125, BRSMG - 68 (Vencedora), UFV-16, BR 94-12773, Doko, from the 99/2000 crop year, submitted the stress condition through the accelerated aging test, with temperature of 42ºC and relative humidity of, approximately, 100% for periods of 0, 24, 48, 72 and 96 hours, utilized the completely randomized design, with four replications of 25 seeds. The physiological quality of seeds was evaluated through by the germination and vigor test (first germination count and radicule length. The results indicate that the genotypes Doko and CAC-1 showed the best physiological seed quality. In order to the accelerated ageing periods above 48 hours determinate results with higher seed deterioration. The total germination decreased until the period of 96 hours of treatment.

Keywords : germination; vigor; soybean; seed; accelerated aging.

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