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- Title
不同红蓝LED光照时间对冰菜生长和品质的影响.
- Authors
赵明伟; 吕新; 张泽; 刘慧英; 牛宁儿; 崔金霞
- Abstract
【Objective】 To explore the effects of different red and blue light time on the growth and development of ice plant and to find the basic law of its growth and development.【Method】 In this experiment, ice plant was used as the research object, and red and blue light were used as artificial light sources. Under hydroponic conditions, a recyclable nutrient solution (EC2.8 dS/m, pH6.5) was used. After the cabbage seedlings grew to four leaves, they were transplanted into the hydroponic cubic culture system. The ratio of red light to blue light was set to (3∶1), the light intensity was uniformly set to 300 μmol/(m2·s), the fill light time was set to 8 h / 16 h (light / dark) for A treatment, 10 h / 14 h (light / dark) for B treatment, 12 h / 12 h ( Light / dark) for C treatment, 14 h / 10 h (light / dark) for D treatment, and 16 h / 8 h (light / dark) for E treatment. The effects of different red and blue light time on growth and nutritional quality of ice plant were studied.【Result】 The net photosynthetic rate of leaves of ice plant also increased with the increase of light time. The growth of ice plant under 14 h light treatment had the best growth morphology and the highest photosynthetic pigment content. Under 14 h light, the net photosynthetic rate reached the maximum, but at 16 h, the net photosynthetic rate began to decrease,and the Fv / Fm value and Φ value were the smallest; the antioxidant enzyme activity was higher under the 14 h light treatment, and the accumulation of soluble sugar and vitamin C was facilitated under the 12 h light treatment. As the illumination time reached 16 h, the content of nitrate was the highest in the leaves.【Conclusion】 When the red and blue light ratio is 3∶1 and the light time was 14 h, the growth of ice plant and its nutritional quality are better.
- Publication
Xinjiang Agricultural Sciences, 2021, Vol 58, Issue 1, p80
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2021.01.010