Data/hora: 08/06/2024 17:56:22

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 02/09/2022
Data da última atualização: | 02/09/2022
Autoria: | SILVA, J. de J.; ALENCAR, S. de S.; GOMES, R. A.; MATIAS, J. R.; PELACANI, C. R.; DANTAS, B. F.
Afiliação: | JAILTON DE JESUS SILVA, Universidade Estadual de Feira de Santana; SARA DE SOUZA ALENCAR; RAQUEL ARAUJO GOMES, Universidade Estadual de Feira de Santana; JANETE RODRIGUES MATIAS; CLAUDINÉIA REGINA PELACANI, Universidade Estadual de Feira de Santana; BARBARA FRANCA DANTAS, CPATSA.
Título: | Conservation and physiological quality of Handroanthus spongiosus (Rizzini) S. Grose (Bignoniaceae) seeds.
Ano de publicação: | 2022
Fonte/Imprenta: | Journal of Seed Science, v. 44, e202244007, 2022.
DOI: | http://dx.doi.org/10.1590/2317-1545v44257812
Idioma: | Inglês
Conteúdo: | Handroanthus spongiosus (Rizzini) S. Grose is an endangered tree species. However, its seed quality, storage, and conservation strategies are issues still unexplored. This study aimed to evaluate the physiological quality of H. spongiosus seeds subjected to different storage times, packaging, and environments for their conservation. A completely randomized experimental design was used, in a double factorial arrangement with an additional treatment (recently-harvested seeds), consisted of five storage times (up to 24 months) and six storage conditions, combining packaging types (permeable and impermeable) and environments (room, cold chamber, freezer, and liquid nitrogen conditions). Seed germination percentage and normal seedling percentage, shoot length, root length, and root to shoot dry weight ratio were evaluated. The seed germination and normal seedling percentages of H. spongiosus seeds conserved under room conditions decreased over the storage time. Normal seedling percentages decreased from the 12th month of storage onwards. Low and ultralow temperatures are recommended for short and medium-term conservation of H. spongiosus seeds, since they did not affect the growth of seedlings.
Palavras-Chave: | Espécie arbórea; Floresta seca; Handroanthus spongiosus; Mata seca.
Thesagro: | Armazenamento; Caatinga; Fisiologia; Germinação; Longevidade; Semente.
Thesaurus Nal: | Dry forests; Germination; Longevity; Storage.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146060/1/Conservation-and-physiological-quality-of-Handroanthus-2022.pdf
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (59969-1) - UPC - AP - DD -  -  -  - DIS