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KMID : 1098420060140040221
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Korean Journal of Medicinal Crop Science
2006 Volume.14 No. 4 p.221 ~ p.224
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Effect of Furrow Directions on Growth and Yield in Panax ginseng C.A. Meyer
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Lee Sung-Woo
Cha Seon-Woo
Hyun Dong-Yun
Kim Young-Chang
Kang Seung-Weon
Seong Nak-Sul
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Abstract
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To analyze how the furrow directions made by the azimuth of 90^{circ}-270^{circ}(N;90^{circ}), 120^{circ}-300^{circ}(N;120^{circ});and;0^{circ}-180^{circ}(N;180^{circ}) effect on the growth characteristics and yield of 2 and 3-year-old ginseng, both of N;90^{circ};and;N;180^{circ} compared withN;120^{circ} recommended as the standard practices for ginseng cultivation. N;90^{circ} showed lower quantum and air temperature during forenoon, while it showed higher quantum and air temperature from 15:00 to 19:00 than that of N;120^{circ}. N;180^{circ} showed high quantum and air temperature due to the distinct increase of sunlight penetrated from 9:00 to 11:00, and which were similar to that ofN;120^{circ} during afternoon. Stem length and leaf area in N;90^{circ};and;N;180^{circ}, respectively, were decreased more than that ofN;120^{circ}, and those in N;180^{circ} were decreased more distinctly than N;90^{circ}. Heat injury rate was decreased in N;90^{circ}, while it was increased distinctly in N;180^{circ} that showed high quantum and air temperature, and which showed great variation according to the year. Yield of N;180^{circ} was decreased more than that ofN;120^{circ} in 2004, the year when it was a relatively high air temperature during summer season, but which was increased more than that ofN;120^{circ} in 2005 showing a rotatively low air temperature.
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KEYWORD
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Panax ginseng, furrow direction, quantum, air temperature, heat injury rate, growth characteristics, yield
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