反光地膜对菠菜产量及类胡萝卜素积累的影响

Effects of Reflective Film on Spinach Yield and Carotenoid Accumulation

摘要: 菠菜是一种被普遍食用的绿色叶菜。菠菜在进行光合作用时，吸收直射光能的主要部位是叶子的上表面。在本项研究中，应用反光地膜增加了菠菜叶片背面的光照强度。实验结果表明：相对于对照组，应用反光地膜后，经过90天的生长，菠菜增产19.16% (鲜重计)，可食用部分中的叶黄素减少了1.30%，β-胡萝卜素增加了0.63% (以干重计)。

Abstract: Spinach is a popular green leafy vegetable. During photosynthesis, spinach absorbs light energy mainly from the upper surface of the leaves. In this study, reflective film was used to increase the intensity of light on the back of spinach leaves. The results from this study showed that, compared with the control group, after 90 days of growth, the yield of spinach increased by 19.16% (fresh weight), the contents of lutein from the edible parts reduced by 1.30% and its edible portion β-carotene increased to 0.63% (dry weight).