Seed Production by Induction of Male Flowers on Female Plants of Hemp(Cannabis sativa L.)
2010
Moon, Y.H., Bioenergy Crop Research Center, NICS, RDA, Muan, Republic of Korea | Koo, B.C., Bioenergy Crop Research Center, NICS, RDA, Muan, Republic of Korea | Choi, Y.H., Bioenergy Crop Research Center, NICS, RDA, Muan, Republic of Korea | Bark, S.T., Bioenergy Crop Research Center, NICS, RDA, Muan, Republic of Korea | Ahn, S.H., Bioenergy Crop Research Center, NICS, RDA, Muan, Republic of Korea | Cha, Y.L., Bioenergy Crop Research Center, NICS, RDA, Muan, Republic of Korea | An, G.H., Bioenergy Crop Research Center, NICS, RDA, Muan, Republic of Korea | Kim, J.K., Bioenergy Crop Research Center, NICS, RDA, Muan, Republic of Korea | Suh, S.J., Bioenergy Crop Research Center, NICS, RDA, Muan, Republic of Korea
This study was conducted to overcome the deliciousness by sex reversal in hemp plants. When female plants grown under long day length condition were transferred to short day length condition in 3th and 6th leaf stage, a few male flowers were formed and the gap of flowering days between sex reversed male and normal female flowers were around 10 days and 3 days, respectively. Although the flowering amounts were small, this short gaps of flowering days were enough for artificial pollination. When female plants grown under long day length condition were transferred to short day length condition just after treatment of silver nitrate in the vegetative stage, a great amount of male flower was formed and the gap of flowering days between sex reversed male and normal female flowers were only 1 to 3 days. The increased sex reversed male flowers and induced short gap of flowering days were adequate for natural wind pollination. When female seeds were cultivated, seed yield was 141 kg/10a, while it was 96 kg/10a when normal seeds cultivated.
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