Abstract
Background: Ginseng cultivation is conducted in sun-shade facilities, and farmers are demanding new cultivation facilities with high durability and reusability.<BR>Methods and Results: In this study, three different sun-shade facilities, slope-shading type (SST), small connecting-tunnel (SCTT), and gradient-tunnel (GTT) were compared in terms of temperature and ginseng growth. The highest temperatures recorded, occuring at 13:00 on August 9, were 42.9℃ for the SCTT and 40.9℃ for the GTT. The SST was 38.5℃ at this time point, which was the lowest of the three treatment. When temperatures above 33℃ were cumulatively calculated from June to August, the SCTT was higher by 2,731.7℃ and 124.5℃ than the GTT and SST respectively. Plant length, stem length, leaf length, and leaf width were significantly higher in SCTT and GTT than in SST. The root weight was 14.7 g, 14.5 g, and 15.3 g in the SST, SCTT, and GTT, respectively, with the highest root weight in GTT. Anthracnose incidence was marginally higher in SST; 1.7% for the SST, 0.3% for the SCTT, and 0.2% for the GTT. Damage caused by high temperature was the highest in SST (8.0%), and was lower in SCTT (5.7%) and GTT (7.3%).<BR>Conclusions: We found that SCTT and GTT facilities are safe for ginseng cultivation. Future studies should investigate ways to lower the temperature, such as by installing light-shield film.
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