GERMINAÇÃO IN VITRO DE SEMENTES DE JABUTICABEIRA [Myrciaria jaboticaba (VELL.) BERG] DURANTE O ARMAZENAMENTO

Abstract

The jabuticaba is a fruit originating from Brazil, found in all national territory. Because it is a little grown fruit, however, with a high market value. It is due to the fact that it is a fruitful one that presents a great juvenile period, being able to arrive until 15 years for its first frutificación. The storage of recalcitrant seeds with relatively high water contents, but still insufficient for germination, has allowed to obtain results favorable to storage. Therefore, the objective of this work was to determine the best storage time for jabuticabeira [Myrciaria jaboticaba (Vell) Berg] seeds for in vitro germination. The experiments were carried out during the year 2017, at the Laboratory of Cell Biology and Vegetable Tissue Culture, at the Agricultural Sciences Center of the Federal University of Paraíba (LABCULTIVE / CCA / UFPB). The seeds were stored in B.O.D. in different storage times being 0, 10, 20, 30, 40, 50 and 60 days and inoculated in liquid culture medium ½MS placed on bridges, so that the seed does not have contact with the medium. The design was completely randomized with 7 treatments with 100 replicates each. Germination Rate, Germination Speed Index (IVG), root and leaf number, length of greater root and shoot, presence of polyembryony and stem branching were evaluated. In relation to the storage time, treatment 1 with 0 days of storage provided a better average for germination (90%), IVG (14.01 / day), presence of polyembryony (31.1%), number of roots (1, 51 / seeds) and the treatment 2 presenting the seeds with 10 days of storage presented better in the other evaluated variables. It was concluded that the in vitro propagation conditions favor the germination of the seeds of jabuticaba (Myrciaria jaboticaba) with up to 10 days of storage and the beginning of in vitro germination occurs from 3 to 4 days for the seeds stored for up to 10 days.