Alterações fisiológicas e bioquímicas durante o armazenamento de sementes de Tabebuia serratifolia

CERNE

Nery, Marcela Carlota²  Oliveira, Luciana Magda de³  Silva, Débora Gabriela¹  Carvalho, Maria Laene Moreira de⁴  Caldeira, Carla Massimo⁴ 

[1] $$;Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina$$;Universidade do Estado de Santa Catarina, Lages$$;Universidade Federal de Lavras, Lavras$$

关键词: Yellow-ipe;    Handroanthus serratifolius;    longevity.;   

DOI  :  10.1590/S0104-77602011000100001

来源: Universidade Federal de Lavras-UFLA

【 摘 要 】

The species Tabebuia serratifolia (ipê amarelo) is used for reclamation of degraded areas, in addition it possess medicinal and timber properties. Its propagation is by seeds, which present problems of conservation, as changes in the percentage of germination throughout the storage. To investigate the possible changes in some physiological and biochemistry behaviors of "ipê-amarelo" seeds during the storage the germination, viability, vigor, protein content of resistant to heat and polyphenols were evaluated. The seeds were stored under environmental and cold chamber conditions for 12 months. Evaluations were made every 3 months. For seeds stored in cold chamber higher germination and vigor were observed as compared to the environmental condition. There were decreases in the levels of polyphenols during storage, but the heat shock proteins kept the same intensity of bands. In the environmental condition the germination becomes null on the 9^th month, while in cold chamber the seeds remain viable during the 12 months of storage.

【 授权许可】

Unknown