[Foliar sprays of urea and gibberellic acid on bloom and production or red raspberry "Autumn Bliss"] | Aspersiones foliares de urea y acido giberelico en la floracion y rendimiento de frambuesa roja de otono "Autumn Bliss"

English. It was studied the response of red raspberry (Rubus idaeus L.) "Autumn Bliss" to foliar applications of gibberellic acid (AG sub3) and urea. Spraying 50 mg L sub-1 of AG sub3 + 10 g L sup-1 urea in 16-node plants accelerated blooming 18 days, and 13.5 days in 18-node plants, with respect to the control. However, fruit yields were reduced 53% and 56%, respectively. In 14-node plants two sprays of 50 mg Lsup-1 of GA sub3, alone or mixed with urea (10 g L sup-1), accelerated flowering in 8 and 3 days, respectively. The yield per plan were also reduced 43% for both treatments. In 14-node plants, a single application of 50 mg L sup-1 of AG sub3 delayed blooming by one day but yields were increased 23% in relation to the control

Spanish; Castilian. Se estudio la respuesta de frambuesa roja (Rubus idaeus L.) "Autumn Bliss" a las aplicaciones foliares de acido giberelico (AG sub3) y urea. La aspersion de 50 mg L sub-1 de AG sub3 + 10 g L sup-1 de urea adelanto en 18 dias la floracion de plantas de 16 nudos y en 13.5 dias en plantas de 18 nudos, con respecto al testigo; sin embargo, tales aspersiones redujeron el rendimiento en 53 y 56%, respectivamente. En plantas de 14 nudos, 2 aplicaciones de 50 mg L sup-1 de AG sub3 solo o con urea, adelanto la floracion en 8 y 3 dias, respectivamente, y tambien los rendimientos por planta disminuyeron 43% con ambos tratamientos. En plantas de 14 nudos, una sola aplicacion de 50 mg L sup-1 de AG sub3 retraso la floracion un dia, pero aumento en 23% el rendimiento, en relacion con el testigo