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Development of colored-woven films and demonstration of ginseng seedling production in a greenhouse
Horticulture, Environment, and Biotechnology ( IF 2.4 ) Pub Date : 2024-01-19 , DOI: 10.1007/s13580-023-00587-y
Inbae Jang , Byungkwan Lee , Janguk Kim , Changhoo Chun

Ginseng has some chronic problems caused by the conventional shading structure. Although greenhouse cultivation has been expanded as an affordable alternative solution, no suitable colored woven film (WF), considering the durability, environmental changes, and growth parameters, has yet not been developed. After checking the light reflectance, solar light transmittance, and spectral photon flux distribution of various colored WFs, pearl WF (high light reflectance of 90% and close to 1.0 B/R light ratios) is expected to have positive effects such as increasing growth by manipulating B/R light ratios including temperature reduction due to albedo difference was mass-produced. In this study, 85% two-layered black shade net with general polyethylene film (black PE), blue WF, and pearl WF were covered on the greenhouses to investigate microclimate and growth ginseng. Spectral light through the films indicated that the blue (B) to red (R) light ratios of pearl WF (1.07–1.50) were lower than that of the black PE (0.83–1.69) and blue WF (1.94–8.68) regardless of the weather, whereas the difference in red to far-red light among the films was less than 25%. The air temperature at 2 pm of the pearl WF was 0.6–2.4oC lower than that of the black PE and blue WF in the summer. The plants grown under the pearl WF had an overall increase in the growth of the aerial part, including the leaf area, more than that of the black PE or blue WF, thereby having the most significant root weight at the time of final harvest. Aside from the targeted product, the total chlorophyll content of the ginseng grown under blue WF was maintained at a high level. The results from the experiment summarized that the pearl WF is recommended to increase the root weight of ginseng because it can ensure durability and provide a cost-effective approach for manipulating microclimate properties to promote their growth.



中文翻译:

彩织膜开发及温室人参育苗示范

人参存在一些由传统遮阳结构引起的长期问题。尽管温室种植已作为一种经济实惠的替代解决方案得到扩展,但考虑到耐用性、环境变化和生长参数,尚未开发出合适的彩色编织薄膜(WF)。在检查了各种彩色WF的光反射率、太阳光透射率和光谱光子通量分布后,珍珠WF(90%的高光反射率和接近1.0的B/R光比)预计具有增加生长等积极效果大量生产了控制 B/R 光比(包括由于反照率差异而降低温度)的技术。本研究采用普通聚乙烯薄膜(黑色PE)、蓝色WF、珍珠WF的85%两层黑色遮阳网覆盖温室,考察小气候和人参生长情况。透过薄膜的光谱表明,无论何种条件,珍珠色 WF 的蓝光 (B) 与红光 (R) 光比 (1.07–1.50) 均低于黑色 PE (0.83–1.69) 和蓝色 WF (1.94–8.68)。天气,而薄膜之间的红光到远红光的差异小于 25%。夏季,珍珠WF下午2点的气温比黑色PE和蓝色WF低0.6-2.4 ℃ 。在珍珠WF下生长的植物的地上部分(包括叶面积)的生长总体增加,超过黑色P​​E或蓝色WF,因此在最终收获时具有最显着的根重。除目标产品外,在蓝色WF下生长的人参的总叶绿素含量保持在较高水平。实验结果表明,建议使用珍珠WF来增加人参的根部重量,因为它可以确保耐久性,并为控制微气候特性以促进其生长提供一种经济有效的方法。

更新日期:2024-01-19
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