Creating a new yellow and blue combination transparent film for Panax ginseng C.A. Meyer growth based on orthogonal designs
文献类型: 外文期刊
作者: Zhenghai Zhang;Huixia Lei;Peihe Zheng;Yayu Zhang;Hai Sun;Cai Shao;Jingjing Zhao
作者机构:
关键词: Chlorophyll fluorescence;Dry root weight;Ginsenoside content;Leaf area;Photosynthetic rate
期刊名称: Heliyon
ISSN: 2405-8440
年卷期: 2024 年 10 卷 5 期
页码:
收录情况: SCIE(2024版)
摘要: Panax ginseng C.A. Meyer originates from old-growth forest environments, where the light intensity and spectrum reaching the forest bed are influenced by the canopy and humidity. In farmlands, suitable light intensity for cultivation is achieved by controlling the light transmission rate using shading nets, while light quality is regulated by a cover of yellow or blue transparent film. Such films have a light quality distinct from that produced by old-growth forests. Herein, a large composite film was developed by alternating small pieces of yellow and blue transparent film. An orthogonal array was used to evaluate the influence of the small transparent film area (STFA), yellow transparent film (YTF) number, and blue transparent film (BTF) number on the associated changes in ginseng in a range of fluorescence-, photosynthesis-, morphology-, and crop quality-related factors. Our results showed that light intensity was influenced primarily by STFA, which caused an overall decrease, while the light quality ratio was affected primarily by YTF number, which increased the proportion of red light and decreased that of blue light, with corresponding influence on different growth parameters. Based on these observations, an improved yellow and blue combination transparent film (YBCTF) with the following characteristics was established: STFA: 15 × 15 cm, YTF: two pieces, and BTF: three pieces. The improved YBCTF facilitated efficient light energy use by the plants, and led to an increase in leaf area, the per leaf photosynthetic rate, dry root weight, and the per root single ginsenoside yield. The findings present a relatively low-cost approach for optimising the light environment of ginseng cultivated in farmland and other crops in large-scale agricultural settings.
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