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KMID : 1098420050130060268
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Korean Journal of Medicinal Crop Science
2005 Volume.13 No. 6 p.268 ~ p.272
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Effects of Nonsupporting Methods on Growth and Yield of Cynanchum auriculatum Royle ex Wight
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Kim Min-Ja
Song Beom-Heon
Nam Sang-Young
Kim In-Jae
Lee Cheol-Hee
Yun Tae
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Abstract
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This study was carried out to investigate the labor saving cultivation of C. auriculatum, which has much bigger root than local variety C. wilfordii, and tested three nonsupporting methods, i.e., untreated control, top pinching, and cutting of branch-top compared with I type stake. Top growth was more vigorous in staking cultivation than in nonsupporting cultivations. Among nonsupporting methods, main vine length and total length of main vines per plant were increased in order of untreated control > top pinching > cutting of branch-top, while the opposite is true to diameter of main vein. Number of leaves per plant was lower, but leaf length and leaf width were higher in cutting of branch-top than in other nonsupporting methods. Number of branched root and diameter of main root were bigger in cutting of branch-top and in staking cultivation, while length of main root and diameter of branched root were greater in staking cultivation and in top pinching than in other treatments. Although yield of marketable root per 10a was 17.9{sim}22.6% lower, income was 8%{sim}17% higher in nonsupporting methods than in staking cultivation by cost saving to staking installation. Among nonsupporting methods, yield of marketable root and income were 6% and 8% higher in cutting of branch-top than in untreated control, respectively.
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KEYWORD
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C. auriculatum, labor saving, nonsupporting methods, top pinching, cutting of branch-top
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