Articles
ARCHING CULTIVATION TECHNIQUES FOR GROWING CUT-ROSES
Article number
482_5
Pages
47 – 52
Language
Abstract
The arching technique was developed by Japanese rose producers in the late 1980’s, this was a new cultivation system in which to grow cut roses.
The technique has been also developed in Holland, Israel, USA, Korea and Taiwan.
About 214 ha, 35% of the total area (609 ha), of cut rose production in Japan also uses rockwool as a substrate, and 60% of them employ the arching technique.
The common characteristic of the arching technique is that it combines both rockwool culture and bench.
The basal shoots that appear in the early stage of growth are bent in an arch, and the subsequent axillary basal shoots (thick shoots growing from the basal part) that appear later are harvested as cut flowers from the basal branching part.
Since these shoots are cut, instead of being pinched, according to conventional methods, the rose stems are thick, long, and of superior grade.
Though there are less roses that can be cut from a plant using this method, as flowers are harvested before the plant is sufficiently established, a certain number of flowers cut per area can be assured simply by increasing the planting density.
This growing technique makes it easier to harvest and to produce roses when compared to older conventional method.
Thus, it is expected to be used by the cut rose industry in Japan by more and more firms as it becomes possible to yield not only a greater yield of top grade roses but also second class roses as well.
The technique has been also developed in Holland, Israel, USA, Korea and Taiwan.
About 214 ha, 35% of the total area (609 ha), of cut rose production in Japan also uses rockwool as a substrate, and 60% of them employ the arching technique.
The common characteristic of the arching technique is that it combines both rockwool culture and bench.
The basal shoots that appear in the early stage of growth are bent in an arch, and the subsequent axillary basal shoots (thick shoots growing from the basal part) that appear later are harvested as cut flowers from the basal branching part.
Since these shoots are cut, instead of being pinched, according to conventional methods, the rose stems are thick, long, and of superior grade.
Though there are less roses that can be cut from a plant using this method, as flowers are harvested before the plant is sufficiently established, a certain number of flowers cut per area can be assured simply by increasing the planting density.
This growing technique makes it easier to harvest and to produce roses when compared to older conventional method.
Thus, it is expected to be used by the cut rose industry in Japan by more and more firms as it becomes possible to yield not only a greater yield of top grade roses but also second class roses as well.
Authors
K. Ohkawa, M. Suematsu
Keywords
Basal shoot, rockwool culture, hydroponic, bench
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