Extended storage of sudangrass seeds
Sudangrass stands out for being tolerant to drought and saline stress. However, studies on production of seeds and post-harvest technologies are insufficient considering both the demand and potential of this crop. This study aimed to monitor physiological quality of sudangrass seeds stored under dif...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/141189 |
| Acceso en línea: | http://dx.doi.org/10.18512/1980-6477/rbms.v12n3p326-335 http://hdl.handle.net/11449/141189 |
| Access Level: | acceso abierto |
| Palabra clave: | Sorghum sudanense Germination Conservation Physiological quality Germinação Conservação Qualidade fisiológica |
| Sumario: | Sudangrass stands out for being tolerant to drought and saline stress. However, studies on production of seeds and post-harvest technologies are insufficient considering both the demand and potential of this crop. This study aimed to monitor physiological quality of sudangrass seeds stored under different environmental conditions for a period of 18 months. Sudangrass seeds were stored under four conditions (natural environment, dry chamber, frost free, freezer). Physiological quality was assessed before storage and then every semester until 18 months by germination and vigor tests. Variance tests were applied for statistical analysis and means were compared as a 4 x 4 factorial. Storage environments were compared by the Tukey test (p ≤ 0.05) and storage time by regression analysis. Speed and percentage of seedling emergence are reduced after 15-month storage of sudangrass seeds whereas seed germination, seedling development and seed weight are preserved until 18 months. Storing seeds under natural environment decrease vigor faster than conservation in dry chamber, frost free and freezer, although seedling growth is higher in that condition compared to the others. |
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