Variations in desiccation tolerance in seeds of Eugenia pyriformis: dispersal at different stages of maturation
ABSTRACT Eugenia pyriformis Cambess., known locally as uvaieira, a species of fruit-bearing tree with both pharmacological and gastronomic potential, has seeds which are sensitive to desiccation. The aim of this study was to analyse whether the degree of tolerance to desiccation of uvaieira seeds de...
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| Format: | Article |
| Language: | English |
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Universidade Federal do Ceará
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| Series: | Revista Ciência Agronômica |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000100118&lng=en&tlng=en |
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| author | Edmir Vicente Lamarca Marcelo Bento Paes de Camargo Simone de Padua Teixeira Edvaldo Aparecido Amaral da Silva Jose Marcio Rocha Faria Claudio Jose Barbedo |
| author_facet | Edmir Vicente Lamarca Marcelo Bento Paes de Camargo Simone de Padua Teixeira Edvaldo Aparecido Amaral da Silva Jose Marcio Rocha Faria Claudio Jose Barbedo |
| author_sort | Edmir Vicente Lamarca |
| collection | DOAJ |
| description | ABSTRACT Eugenia pyriformis Cambess., known locally as uvaieira, a species of fruit-bearing tree with both pharmacological and gastronomic potential, has seeds which are sensitive to desiccation. The aim of this study was to analyse whether the degree of tolerance to desiccation of uvaieira seeds depends on the stage of maturation of the seeds at shedding. This, in turn, depends on the environmental conditions in which the seeds develop, including the accumulation of degree-days and rainfall in the period. Seeds were collected from the ripe fruit of parent plants located in the states of São Paulo and Minas Gerais, Brazil, submitted to drying and analysed for water content and germination. A completely randomised design was used in a 20 x 3 factorial scheme (source of material x level of drying). The degree of desiccation tolerance differs between region and period of collection, even for the same parent plant when the seeds are collected in different years. The water and thermal conditions of the environment during seed development modify the maturation cycle, the physiological quality and the acquisition of desiccation tolerance. In uvaieira seeds, desiccation tolerance depends on the physiological maturity of the seeds at the time of dispersal, which is associated with the environmental conditions. |
| first_indexed | 2024-04-13T06:31:45Z |
| format | Article |
| id | doaj.art-3079a1cf67074ccca50f088db836b3cf |
| institution | Directory Open Access Journal |
| issn | 1806-6690 |
| language | English |
| last_indexed | 2024-04-13T06:31:45Z |
| publisher | Universidade Federal do Ceará |
| record_format | Article |
| series | Revista Ciência Agronômica |
| spelling | doaj.art-3079a1cf67074ccca50f088db836b3cf2022-12-22T02:58:05ZengUniversidade Federal do CearáRevista Ciência Agronômica1806-669047111812610.5935/1806-6690.20160014S1806-66902016000100118Variations in desiccation tolerance in seeds of Eugenia pyriformis: dispersal at different stages of maturationEdmir Vicente LamarcaMarcelo Bento Paes de CamargoSimone de Padua TeixeiraEdvaldo Aparecido Amaral da SilvaJose Marcio Rocha FariaClaudio Jose BarbedoABSTRACT Eugenia pyriformis Cambess., known locally as uvaieira, a species of fruit-bearing tree with both pharmacological and gastronomic potential, has seeds which are sensitive to desiccation. The aim of this study was to analyse whether the degree of tolerance to desiccation of uvaieira seeds depends on the stage of maturation of the seeds at shedding. This, in turn, depends on the environmental conditions in which the seeds develop, including the accumulation of degree-days and rainfall in the period. Seeds were collected from the ripe fruit of parent plants located in the states of São Paulo and Minas Gerais, Brazil, submitted to drying and analysed for water content and germination. A completely randomised design was used in a 20 x 3 factorial scheme (source of material x level of drying). The degree of desiccation tolerance differs between region and period of collection, even for the same parent plant when the seeds are collected in different years. The water and thermal conditions of the environment during seed development modify the maturation cycle, the physiological quality and the acquisition of desiccation tolerance. In uvaieira seeds, desiccation tolerance depends on the physiological maturity of the seeds at the time of dispersal, which is associated with the environmental conditions.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000100118&lng=en&tlng=enMyrtaceaeUvaieiraDegree daysPhysiological qualityDrying |
| spellingShingle | Edmir Vicente Lamarca Marcelo Bento Paes de Camargo Simone de Padua Teixeira Edvaldo Aparecido Amaral da Silva Jose Marcio Rocha Faria Claudio Jose Barbedo Variations in desiccation tolerance in seeds of Eugenia pyriformis: dispersal at different stages of maturation Revista Ciência Agronômica Myrtaceae Uvaieira Degree days Physiological quality Drying |
| title | Variations in desiccation tolerance in seeds of Eugenia pyriformis: dispersal at different stages of maturation |
| title_full | Variations in desiccation tolerance in seeds of Eugenia pyriformis: dispersal at different stages of maturation |
| title_fullStr | Variations in desiccation tolerance in seeds of Eugenia pyriformis: dispersal at different stages of maturation |
| title_full_unstemmed | Variations in desiccation tolerance in seeds of Eugenia pyriformis: dispersal at different stages of maturation |
| title_short | Variations in desiccation tolerance in seeds of Eugenia pyriformis: dispersal at different stages of maturation |
| title_sort | variations in desiccation tolerance in seeds of eugenia pyriformis dispersal at different stages of maturation |
| topic | Myrtaceae Uvaieira Degree days Physiological quality Drying |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000100118&lng=en&tlng=en |
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