Articles
GA3 FOLIAGE SPRAYING ENHANCES TUBER DORMANCY IN GLORIOSA SUPERBA L.
Article number
886_26
Pages
193 – 196
Language
English
Abstract
In the cut flower production of Gloriosa superba, the new tubers that developed after the harvest of inflorescences are used as starting materials for the next culture.
Tubers produced during the high temperature season show shallow dormancy, resulting in some unfavorable phenomena, such as secondary tuber formation and shorter storage time.
To enhance tuber dormancy during summer, GA3 and BA foliage spraying were applied after the harvest of inflorescences.
While 500 and 1000 ppm GA3 enhanced the tuber dormancy of Misato Red, there was no effect from BA. The combination of GA3 foliage spraying and shading was investigated by the use of Rose Queen. The induction of deeper dormancy by GA3 treatment was confirmed, but shading did not affect tuber dormancy.
Tubers produced during the high temperature season show shallow dormancy, resulting in some unfavorable phenomena, such as secondary tuber formation and shorter storage time.
To enhance tuber dormancy during summer, GA3 and BA foliage spraying were applied after the harvest of inflorescences.
While 500 and 1000 ppm GA3 enhanced the tuber dormancy of Misato Red, there was no effect from BA. The combination of GA3 foliage spraying and shading was investigated by the use of Rose Queen. The induction of deeper dormancy by GA3 treatment was confirmed, but shading did not affect tuber dormancy.
Authors
C. Ninomiya, T. Nishiuchi, M. Hiraishi, S. Fukai
Keywords
BA, cut flower, shading
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