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KMID : 1098420140220030210
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Korean Journal of Medicinal Crop Science
2014 Volume.22 No. 3 p.210 ~ p.216
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Effect of Cultivation Using Plastic-Film House on Yield and Quality of Ginseng in Paddy Field
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Kim Dong-Won
Kim Jong-Yeob
You Dong-Hyun
Kim Chang-Su
Kim Hee-Jun
Park Jong-Suk
Kim Jeong-Man
Choi Dong-Chil
Oh Nam-Ki
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Abstract
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The average and maximum temperature were 29.5℃ and 33.2℃ at 2:00 p.m. respectively, in the plastic-film house covered with shade net, and both of temperature were lower 0.6℃ and 1.3℃ than those of conventional shade. Light transmittance was 14% in the plastic-film house, while 9.9% in conventional shade during growing season from May to October. Withering time of aboveground part was on October 3rd in conventional shade with 60% of withering leaf, while it was on November 10th with 3.7% of withering leaf in the plastic-film house, about 40 days longer survival. The main diseaseincidence were 15% of anthracnose, 17% of leaf spot, 5% of phytophthora blight and 3% of gray mold in the conventional shade, while 0 ~ 0.1% disease incidence and 95% of emergence rate in the plastic-film house. The growth in the aboveground and underground part of ginseng was totally better, particularly characteristics affecting yield such as root length, main root length and diameter in the plastic-film house . The fresh weight was increased by 128% compared to the conventional shade and harvested roots per 3.3 ㎡ were 36 roots in the conventional shade and 58 roots in the plastic-film house and futhermore yield per 3.3 ㎡ was increased by 216% compared to the conventional shade. As covering materials, the rice straw in the plastic-film house was excellent. The ginsenoside contents affecting the quality of ginseng were higher in the plastic-film house indicating 0.333% of Rg1, 0.672% of Rb1, 0.730% of Rc and rate of red rusty root was less than 4.0 ~ 6.1%. Above the results, the quality of ginseng grown in the plastic-film house covered with shade net was improved than that of the conventional shade.
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KEYWORD
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Ginseng, Plastic-Film House, Disease, Temperature, Quality, Yield
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