Effects of Light Intensity and Photoperiod on Morphological Development and Photosynthetic Characteristics of Coriander

文献类型： 外文期刊

第一作者： Wang, Fang

作者： Wang, Fang;Gao, Qi;Wang, Jingxuan;Ding, Yifeng;Wang, Sen;Ji, Guangsi

作者机构：

关键词： coriander; light intensity; photoperiod; morphological development; photosynthetic characteristics; PFALs

期刊名称：HORTICULTURAE （ 影响因子：3.1； 五年影响因子：3.4 ）

ISSN：

年卷期： 2024 年 10 卷 3 期

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收录情况： SCI

摘要： Coriander (Coriandrum sativum L.) is prized for its aroma and medicinal properties and is extensively employed in various cuisines. Light intensity and photoperiod greatly impact its phenological development. The application of light-emitting diodes (LEDs) in facility cultivation systems enables precise control of lighting conditions, leading to enhanced energy efficiency in coriander cultivation. This study investigated three levels of light intensity (133, 200, and 400 mu mol center dot m-2 center dot s-1) and three photoperiods (8L/16D, 16L/8D, and 24L) to comprehensively assess their effects on coriander's morphological development, photosynthetic characteristics, and energy utilization efficiency. The objective was to identify a combination conducive to efficient and energy-saving coriander cultivation in PFALs. Results indicated that high light intensity (400 mu mol center dot m-2 center dot s-1) with continuous lighting (24L) reduces coriander's photosynthetic capacity, while 24-h of continuous lighting can boost yield at the expense of energy efficiency. An 8-h photoperiod significantly decreases the yield compared to 16 h. Low light intensity inhibits plant development, indicating that 133 mu mol center dot m-2 center dot s-1 is suboptimal. For optimal efficiency and yield, a light intensity of 200 mu mol center dot m-2 center dot s-1 and a 16-h photoperiod are recommended in coriander PFAL cultivation. These findings advocate for the adoption of these specific conditions for the indoor cultivation of coriander within PFAL systems.

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