Propagation of a Rare Variety Daphne kiusiana Miq. In Korea Through Softwood Cuttings
2010
Ro, N.Y., National Agrobiodiversity Center, RDA, Suwon, Republic of Korea | Song, E.Y., Agricultural Research Center for Climate Change, RDA, Jeju, Republic of Korea | Kim, S.C., Agricultural Research Center for Climate Change, RDA, Jeju, Republic of Korea | Ko, H.C., National Agrobiodiversity Center, RDA, Suwon, Republic of Korea | Lee, S.Y., National Agrobiodiversity Center, RDA, Suwon, Republic of Korea
This study was conducted to find out the propagation method of a rare variety Daphne kiusiana Miq. in Korea through softwood cuttings. Daphne kiusiana Miq are the evergreen broad leaf tree which have lived in the southern part of Korea. The flowering time of Daphne kiusiana Miq is early spring and the flower has an attractive fragrance. Generally, plants are dioecious and only the male plants are found in Korea. Propagation by seed is very difficult in this tree. Softwood cuttings were taken to establish an efficient propagation method in Daphne kiusiana Miq Cuttings were grown in perlite:vermiculite (1 : 1), perlite, vermiculite, sand rooting media under shaded greenhouses during summer in 2007. The rooting rates of cuttings were 86.7%, 95%, 75% and 95% in perlite:vermiculite (1 : 1), perlite, vermiculite and sand media, respectively. Softwood cuttings taken on July and rooting at 27℃ were significantly improved the growth and rooting rates. Softwood cutting can be an effective means of propagation in Daphne kiusiana Miq.
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