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Optimum Harvesting Time Based on Growth Characteristics of Four-year Ginseng  

Ah, Young-Nam (School of Biological Resources, Coll. of Natural Resources, Youngnam Univ.)
Lee, Seon-Young (School of Biological Resources, Coll. of Natural Resources, Youngnam Univ.)
Choung, Myoung-Gun (National Yeongnam Agricultural Experiment Station, RDA)
Kang, Kwang-Hee (School of Biological Resources, Coll. of Natural Resources, Youngnam Univ.)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.47, no.3, 2002 , pp. 211-215 More about this Journal
Abstract
This study was carried out to find out the optimum harvesting time on the basis of physiological characteristics, yield and commercial value in four years old ginseng. For this purpose, the changes of agronomic growth characteristics of the aerial and underground parts with different growing stages were examined with fourth year ginseng. The leaf growth was dramatically increased from the mid-April (shooting stage) to the mid-May (flowering stage), and the growth was nearly completed by the mid-May, but the stem growth continued by the mid-August. The weight of fresh root decreased from the April (20.7g) to the June (18.2g), but increased from the June to the October(45. 1g). The yield of fresh root per "Kan" was 1.5 kg, 1.2kg and 1.3kg at the April, the May and the June, respectively, thereafter continually increased to 2.9 kg of the October, which showing the maximum yield. In conclusion, the ginseng root was generally harvested from the September to the October at farm-house, but it had better be harvested after the mid-October rather than from September to October considering the weight of dry root and the yield of fresh ginseng.h ginseng.
Keywords
Panax ginseng; growing stages; agronomic characters; yield;
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