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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2013
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| Online Access: | https://www.redalyc.org/articulo.oa?id=32725624017 |
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Table of Contents:
- Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions EDMIR V. LAMARCA JULIANA S. PRATAVIERA IGOR F. BORGES LILIANA F. DELGADO CARMEN C. TEIXEIRA MARCELO B.P. DE CAMARGO JOSÉ M.R. FARIA CLAUDIO J. BARBEDO Multidisciplinaria (Ciencias Naturales y Exactas) day degree rainfall Dispersal development This study aims to analyze the maturation and dispersal of Eugenia pyriformis Cambess. seeds produced in different years, and the influence of variation in thermal and hydric environment on seed physical and physiological characteristics at dispersal. Fruits at different developmental stages were harvested in the city of São Paulo between 2003 and 2010, as well as in the cities of Campinas and Lavras, in 2009 and 2010 and analyzed for size and color. The seeds were extracted from the fruits and their dry mass, water content, germination and vigor were assessed. Results showed that seed maturation is unsynchronized to the maturation of the fruit, taking 45 days on average (430 growing degree-days), longer in rainy times or lower temperatures. Seeds with higher physiological quality were produced in rainy years and when the temperature range was larger. We concluded therefore that hydric and thermal environmental variations during development influence the maturation of Eugenia pyriformis seeds and are able to determine the formation cycle and the fin al seed quality. 2013 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32725624017 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.1 Vol.85