Qualidade fisiológica de sementes de pitangueira submetidas a diferentes procedimentos de secagem e substratos - Parte 2 Physiological quality of surinam cherry seeds submitted to different procedures of drying and substrates - Part 2
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2010
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Abstract
Conduziu-se este trabalho com o objetivo de determinar o procedimento de secagem e substratos ideais para avaliar a visibilidade e o vigor das sementes e crescimento inicial das plântulas de pitangueira (Eugenia uniflora L.). Utilizou-se o delineamento inteiramente casualizado, em esquema fatorial 2 x 4 (2 procedimentos de secagem: à sombra e ao sol; 4 substratos: Areia, vermiculita, pó-de-coco e papel toalha), com quatro repetições de 25 sementes cada uma e se avaliaram os seguintes parâmetros: tempo médio de germinação, comprimento da raiz e do epicótilo e massa seca da plântula. O experimento foi conduzido em germinador tipo BOD, regulado a temperatura constante de 25 ºC e regime de luz contínua. O procedimento de secagem à sombra e o substrato vermiculita podem ser recomendados para testar o vigor dessa espécie.
This study had as its objective the determination of ideal procedure of drying and the substrate to evaluate the vigour and the initial growth of surinam cherry seedlings (Eugenia uniflora L.). The used design was entirely randomized in factorial scheme 2 x 4 (2 procedures of drying: shade and sun; 4 substrates: sand, vermiculite, coconut fiber and paper towels) with four replications of 25 seeds each. The following parameters were also analyzed: average time of germination, length of primary root and epicotyl and dry weight of the seedling. The experiment was conducted in BOD regulated at constant temperature of 25 ºC and regime of continuous light. The shade method of drying and the vermiculite substrate can be recommended to test the vigour of this specie.
This study had as its objective the determination of ideal procedure of drying and the substrate to evaluate the vigour and the initial growth of surinam cherry seedlings (Eugenia uniflora L.). The used design was entirely randomized in factorial scheme 2 x 4 (2 procedures of drying: shade and sun; 4 substrates: sand, vermiculite, coconut fiber and paper towels) with four replications of 25 seeds each. The following parameters were also analyzed: average time of germination, length of primary root and epicotyl and dry weight of the seedling. The experiment was conducted in BOD regulated at constant temperature of 25 ºC and regime of continuous light. The shade method of drying and the vermiculite substrate can be recommended to test the vigour of this specie.
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| Authors | Sena, Lúcia H. de M.;Matos, Valderez P.;Sales, Anna G. de F. A.;Ferreira, Elane G. B. de S.;Pacheco, Mauro V.; |
| Journal | revista brasileira de engenharia agrícola e ambiental - agriambi |
| Year | 2010 |
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