SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE ARATICUM-DO-BREJO
SUPERAÇÃO DA DORMÊNCIA DE SEMENTES DE ARATICUM-DO-BREJO
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DOI: https://doi.org/10.22533/at.ed.9662430042
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Palavras-chave: Annonaceae, Propagação, porte-enxerto
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Keywords: Annonas, propagation, rootstock
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Abstract: The Annona glabra is originally species of Tropical America, with wide geographical distribution in the Brazilian territory. It presents fruits with little flavor, but has importance in the horticulture for the fact of constituting in rootstock for soursop (Annona muricata) and other annonas producing of eatable fruits. The production of pond apple tree rootstock is made by sexuada, as main problem the slow and desuniforme germination, because the seeds present dormancy. The work had as objective to verify the effect of the scarification of the tegument and of the soaking in solution of giberelic acid about the germination of pond apple seeds. The treatments consisted of the combination of seeds scarification and non scarification with soaking, for 24 hours, in solution of giberelic acid (AG3), in the following concentrations: 0, 250, 500, 750 e 1,000 mg.L-1. The experiment was carried out completely randomized design, with four replicates, of 50 seeds, in factorial scheme 2 x 5 (condition of the seed x concentration of giberelic acid). It was observed that the effect giberelic acid in the germination of pond apple seeds was more pronounced than the scarification. The seeds germinated in smaller time when soaked in solution of AG3 in the concentration of 750 and 1,000 mg.L-1. The scarification of the tegument and the soaking in solution of giberelic acid, in the concentrations of 500 or 1,000 mg.L-1, is constituted in efficient method for overcoming pond apple seeds dormancy.
- Walnice Maria Oliveira do Nascimento
- Caio Xavier dos Santos
- Lucas Rozendo de Lima Silva
- Ester Costa Franco