Acceleration of the primary axillary inflorescence development by newly developed night chilling and short day treatment in strawberry [Fragaria ananassa] forcing culture
2007
Inaba, Y.(Tochigi-ken. Agricultural Experiment Station, Utsunomiya (Japan)) | Ienaka, T. | Hatakeyama, A. | Yoshida, T.
The effects of prolonged night chilling and short day treatment with fertilization on the growth of terminal inflorescence and differentiation of primary axillary inflorescence were studied in strawberry plants that already differentiated terminal inflorescence in early August. Eight to ten days interruption of the treatment after the initial differentiation of terminal inflorescence increased the number of flowers in the terminal cluster. Supplemental application of fertilizers during interruption and prolonged night chilling and short day treatment accelerated the differentiation of primary axillary inflorescence. Transplanting strawberry plants to a productive field in early September after prolonged night chilling and short day treatment it made possible to harvest fruits of terminal inflorescence from early October onward and fruits of the primary axillary inflorescence continuously. Therefore, early yield of strawberry fruits increased.
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