EFFECTS OF PLANT GROWTH REGULATORS ON OUT-OF-SEASON PRODUCTION OF STRAWBERRY

M. Hamano, H. Yamazaki, S. Imada
For out-of-season strawberry production, plant growth regulators (PGRs) were used to promote flowering of short-day June-bearing cultivars. During the period of flower inhibition after chilling, application of a gibberellic acid (GA) biosynthesis in-hibitor, prohexadione calcium (PCa), reduced petiole length but did not enhance flower induction. Two-month-old runner plants in a flower inductive condition, treated with PCa, did not promote flower induction; benzyladenine delayed flowering and GA3 completely inhibited flowering. When GA1 was applied to shoot tips when plants were transferred from a flower inductive condition into a glasshouse in summer, flowering was inhibited. With sufficient duration of flower induction treatment, GA1 administered at any time did not promote flowering in this study.
Hamano, M., Yamazaki, H. and Imada, S. (2006). EFFECTS OF PLANT GROWTH REGULATORS ON OUT-OF-SEASON PRODUCTION OF STRAWBERRY. Acta Hortic. 708, 83-88
DOI: 10.17660/ActaHortic.2006.708.10
https://doi.org/10.17660/ActaHortic.2006.708.10
Fragaria × ananassa, short-day June-bearing plant, over-wintered plant, flower induction, prohexadione calcium, gibberellin, cytokinin
English

Acta Horticulturae