PASSION FRUIT SEEDS STORAGE

• Autor(a) principal: Pereira, Wilson Vicente Souza
• Data de Publicação: 2011
• Outros Autores: Vieira, Lorena Melo, Ribeiro, Leonardo Monteiro, Mercadante-Simões, Maria Olivia, Oliveira, Túlio Gabriel Soares
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Tropical (Online)
• Texto Completo: https://revistas.ufg.br/pat/article/view/8815
• topic: Passiflora alata (Curtis); P. cincinnata (Mast.); P. setacea (D.C.); seed dormancy; stratification.; Passiflora alata (Curtis); P. cincinnata (Mast.); P. setacea (D.C.); dormência de sementes; estratificação.

Passiflora alata, P. cincinnata, and P. setacea are very important species, in Brazil, with high agronomic potential. However, they present propagation difficulties, related to seed dormancy and storage. Thus, this study aimed to evaluate the effects of storage period and methods on the Passiflora alata Curtis, P. cincinnata Mast, and P. setacea D.C. seedlings emergence. For each species, seeds were stored at shadow, in a refrigerator (10ºC) and under laboratory conditions and stratification at 10ºC. At 0, 7, 60, and 120 days after storage, for P. alata and P. cincinnata, and 0, 7, 90, and 120 days, for P. setacea, 50 seeds were sown in a commercial substrate, with 4 replications. The experiments were randomly designed in a 4x3 factorial scheme (period x method). The seedlings emergence was evaluated every three days, up to 90 days after sowing. For P. alata, the stratification provided an increase on emergence percentages (11%), 60 days after seeds storage, and decrease at 120 days, with no positive influence of the other treatments. There was no influence of the storage method for P. cincinnata, but it was noticed an increase in seedlings emergence up to 60 days after storage (18,5%) and a decrease from that period on. For P. setacea, the stratification resulted in a linear increase in seedlings emergence, according to the storage period. The conservation of P. alata and P. setacea seed is more efficient under cold stratification. P. cincinnata seeds, regardless of method, should not be stored for more than 60 days.