Germinação e crescimento inicial de sementes de Myrciaria Floribunda (H. West ex willd) O. Berg. sob efeito da submersão em água

Abstract

This study aimed to investigate the germination and early growth of Myrciaria floribunda seeds. The seeds were submitted to different periods of submersion: 0, 2, 4, 8 and 16 days at 25°C. With 5 treatments and 4 replicates of 25 seeds. Sowing was performed on roll system. Germination assessments (germination percentage, germination speed index, average time of germination) were made until the transfer to the field. After 70 days in the field, evaluations of the stem diameter, length of the plant canopy and root and, fresh and dry biomass of seedlings were performed, and the design was completely randomized. The Germination Percentage, Germination Speed Index and the Fresh Mass of Root were higher at 8 days of submersion and the ATG and the Length of root increased gradually with the submersion time, on the other hand, submergence affected the plant canopy length and fresh and dry weight of plant canopy. The 8-day submersion, showed the best values for germination and initial growth of M. floribunda seeds.