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KMID : 0903620000410030292
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Journal of the Korean Society for Horticultural Science
2000 Volume.41 No. 3 p.292 ~ p.296
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Effect of Plug Cell Size , Rooting Medium and Shading Duration on Rooting and Growth of Dendranthema grandiflorum ´ Baegkwang ´ Cuttings
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김창배/Kim, Chang Bae
김규원/한윤열/심용구/우진하/최경배/서영진/Kim, Kiu Weon/Han, Youn Yol/Sim, Yong Gu/Woo, Jin Ha/Choi, Kyeong Bae/Seo, Young Jin
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Abstract
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This experiment was conducted to investigate the effect of cell size, root medium and shading duration on rooting and growth of chrysanthemum cuttings in the plug trays. Height of rooted cutting increased with decreasing cell size, but stem diameter increased with increasing cell size. The growth of cuttings such as number and fresh weight of roots was the greatest in 128 and 200 plug trays. C/N ratio in leaves was the highest in 128 and 200 cell trays. Percentage of root ball formation was 20.0, 43.3, 73.3, and 100% in 32, 50, 72 plug trays, and in plug tray with 128 or more cells, respectively. The optimum growing period of cuttings was 21 days after cutting for 200 and 128 cell trays. At 10 days after cutting, all cuttings initiated roots in all media. Rooting was earlier in soil + perlite (PL) and in soil + burnt chaff (BC) media than any other media. The growth, rooting, and percentage of root ball formation showed the greatest in composed PL + Soil + BC (1:1:1, v/v/v) medium. The shorter the shading duration, the better rooting of cuttings, and the growth was greater in the non-shade treatments than in shade treatments.
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