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Objetivou-se avaliar a qualidade fisiológica de sementes de xique-xique (Pilosocereus gounellei) armazenadas em diferentes ambientes e embalagens durante o período de seis meses. Utilizou-se o delineamento inteiramente casualizado com quatro repetições, num esquema de parcelas subdivididas. As parcelas receberam a combinação de dois ambientes de armazenamento, câmara fria e ambiente natural, e três embalagens, saco de papel multifoliado, saco de plástico e vidro. As subparcelas constaram dos períodos de armazenamento 0, 2, 4 e 6 meses. Após cada período de armazenamento, avaliou-se o teor de água, a porcentagem, o índice de velocidade e tempo médio de germinação. A câmara fria é mais adequada ao armazenamento de sementes de xique-xique quando comparada ao ambiente natural. Neste ambiente, todas as embalagens testadas foram eficientes em manter a qualidade fisiológica. Em ambiente natural, as sementes acondicionadas em saco de plástico apresentaram a maior germinação (87%), porém o saco de papel multifoliado mostrou-se mais estável em todas as variáveis analisadas, com germinação de 58%, velocidade de 3,9 e tempo médio de germinação de 7,9 dias ao final de seis meses de armazenamento. Em ambiente natural, o saco de papel multifoliado, é a condição ideal para a conservação da viabilidade de sementes de xique-xique. The objective of this study was to evaluate the physiological quality of Pilosocereus gounellei seeds stored in different environments and types of packaging for six months. The experimental design was completely randomized, in split plots with four replications. The plots received two storage environments, cold chamber and natural environment, and three types of package, multi-layer paper bag, plastic bag and glass. The subplots received the storage periods 0, 2, 4 and 6 months. After each storage period, the seed moisture content, percentage of germination, germination speed index and mean time of germination were evaluated. The cold chamber was more suitable to store xique-xique seeds compared to the natural environment. In that environment, all the packages were effective to keep the physiological quality. In the natural environment, the seeds packed in plastic bags showed the highest percentage of germination (87%), but the multi-layer paper bag was more stable for all variables, with 58% of germination, speed index of germination equals to 3.9 and mean time of germination of 7.9 days after six months of storage. In the natural environment, multi-layer paper bags showed the best results to the conservation of xique-xique seed viability

Armazenamento de sementes de xique-xique