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Efeito da temperatura na germinação de sementes de vigna, feijoeiro e soja Translated title: Effect of temperature on germination of vigna, bean and soybean seeds

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      Abstract

      Estudou-se em condições controladas, o efeito das temperaturas de 14, 21 e 28°C na germinação de três cultivares de Vigna unguiculata, Phaseolus vulgaris e Glycine max. As sementes foram acondicionadas em placas de Petri com algodão e papel de filtro , mantidos sob alta umidade. Maior germinação foi observada a 21°C em relação as temperaturas de 14 e 28°C, para os cultivares de vigna, feijoeiro e soja. Melhor germinação foi apresentada pelos cultivares de feijoeiro Carioca e Goiano Precoce, seguidos pelo feijoeiro 'Rosinha' , vigna ' EPACE 1' e soja 'Davis' a 21ºC. Os cultivares de vigna, adaptados a altas temperaturas, apresentaram problemas na germinação a 14ºC. Normalmente a velocidade de emergência do hipocólito revelou-se inferior a velocidade de emergência da radícula.

      Translated abstract

      This experiment was carried out to study the effects of the temperatures of 14, 21 and 28°C on germination of three cultivars of Vigna unguiculata, Phaseolus vulgaris and Glycine max. The seeds where germinated on Petri dishes provided with cotton and filter paper, maintained in incubator with high humidity. The Petri dishes were maintained under controlled temperature conditions. Higher germination was observed at 21°C in relation to temperatures of 14 and 28°C, for Vigna, bean and soybean cultivars. Best germination were showed by 'Carioca' and 'Goiano Precoce' beans,followed by 'Rosinha' bean, 'EPACE 1' Vigna and 'Davis' soybean at 21°C. Vigna cultivars adapted to high temperatures presented problems for germination at 14°C. Normaly velocity of hypocotyl emergence was lower tham velocity of radicle emergence.

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      Most cited references 5

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      Fisiologia de sementes

       F. POPINIGIS (1974)
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        The germina tion of seeds

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          Seed byology

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            Author and article information

            Affiliations
            [1 ] Universidade de São Paulo Brazil
            [2 ] Universidade de São Paulo Brazil
            Contributors
            Role: ND
            Role: ND
            Role: ND
            Role: ND
            Journal
            aesalq
            Anais da Escola Superior de Agricultura Luiz de Queiroz
            An. Esc. Super. Agric. Luiz de Queiroz
            Universidade de São Paulo (Piracicaba )
            2316-8935
            1983
            : 40
            : 1
            : 575-583
            S0071-12761983000100031 10.1590/S0071-12761983000100031

            http://creativecommons.org/licenses/by/4.0/

            Product
            Product Information: SciELO Brazil
            Categories
            AGRICULTURE, MULTIDISCIPLINARY

            General agriculture

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