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KMID : 1098419970050010067
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Korean Journal of Medicinal Crop Science
1997 Volume.5 No. 1 p.67 ~ p.71
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Effects of Planting Density on Agronomic Traits and Yield in Bupleurum falcatum L.
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Kim Young-Guk
Bang Jin-Ki
Yu Hong-Seob
Lee Seoung-Tack
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Abstract
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Bupleurum falcatum is one of the oldest medicinal crop spontaneously generated as well as cultivated by man and successfully grown during the summer season in Korea. This study was conducted to examine the effect of planting density in the row spacing and hill spacing system using machine seeder on major agronomic traits, yield and labor saving. In 1993 and 1994, a spilt plot design was used with row spacing as the main plot and hill spacing as subplot. Labor saving efficency of the machine seeder reduced 96% than the hand seeding in sowing time required. Number of seeding stand increased, but stem height and number of nodes did not affect with different density in each row and hill spacing. There were reduced with narrow hill spacing on stem diameter, number of branches, shoot weight and root traits. There was no significant interaction between row and hill spacing for any major traits studied except shoot weight. Yield was more increase at 20cm than at 30cm row spacing. For these studies the optiomum density appears to be between drilling or 5cm hill spacing with 20cm row spacing. A highly significant positive correlation was appeared between number of seedling stand and root yield.
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KEYWORD
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Agronomic traits, Yield, Planting density, Machine seeder, Bupleurum falcatum
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