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No presente trabalho, buscou-se correlacionar diferentes graus de dominância apical in vivo com a capacidade proliferativa in vitro da bananeira, através da relação existente entre a fonte de explante e o seu posterior comportamento in vitro. Brotos laterais de Musa acuminata Colla: Nanicão (AAA) e Grand Naine (AAA), oriundos de plantas-matrizes mostrando diferentes graus de dominância apical in vivo (elevada, média e baixa) foram cultivados in vitro, no Laboratório de Cultura de Tecidos Vegetais da EEI/ EPAGRI-SC, por cinco subcultivos, em intervalos de 30 dias, em meio MS suplementado com BAP (11,1 mmol/l), sacarose (30 g/l), ágar (7 g/l), vitaminas MS e pH 5,8. O grau de dominância apical in vivo influenciou diretamente o comportamento in vitro dos explantes, no que diz respeito à capacidade proliferativa. Brotos laterais oriundos de plantas-matrizes, com grau de dominância apical in vivo baixa, proporcionaram a maior taxa média proliferativa (7,5 brotos/explante) para a cv. Grand Naine, enquanto brotos laterais oriundos de plantas-matrizes com grau de dominância apical média proporcionaram a maior taxa média proliferativa (10,96 brotos/explante) para a cv. Nanicão. In the present work aimed to study the correlation between the in vivo apical dominance and the in vitro regenerative capacity in banana (Musa acuminata Colla) cvs. Nanicão (AAA) and Grand Naine (AAA). Lateral buds explanted from mother plants showing different apical dominace levels (low, medium and high) were cultivated in the Laboratory of Tissue Culture of EEI/EPAGRI-SC, during five subcultures with 30 days interval in MS culture medium supplemented with BAP (11,1 mmol/l), sucrose (30 g/l), agar (7 g/l) and MS vitamins. The pH was adjusted to 5.8 prior autoclaving. Cultures derived from lateral buds of mother plants showing low level of apical dominace resulted in the highest proliferation rate, with 7.5 shoots per explant for 'Grand Naine'. As for cv Nanicão the highest proliferation rate (10.9 shoots/explants) resulted from mother plants showing medium level of apical dominance

Correlação entre a capacidade proliferativa in vitro e a dominância apical in vivo da bananeira cvs. Grand naine e Nanicão