Department of Agricultural Technology, TEI of Western Greece, Campus Amaliada, Greece.
Laboratory of Chemistry, Analysis & Design of Food Processes, Department of Food Science and Technology, University of West Attica, Egaleo, Greece.
J Sci Food Agric. 2019 Jan 30;99(2):781-789. doi: 10.1002/jsfa.9246. Epub 2018 Aug 27.
Photovoltaics (PV) provide an alternative solution to cover energy demands in greenhouses. This study evaluates the effect of PV panels installed on the roofs of greenhouses, and the partial shading that they cause, on the growth parameters and growth indicators of the experimental cultivation of peppers (Capsicum annuum cv. California Wonder). The growth of the plants, the antioxidant profile, radical scavenging activity, total phenolic content, and the phenolic and metabolic profiles (using LC-MS spectrometry and NMR spectroscopy) are evaluated.
Data are presented from a full cultivation period. Results indicated that indoor temperatures were similar for both glass and glass-PV (glass with PV panels installed) greenhouses during the day and the night. The production yield was higher for the glass-PV greenhouses. The pepper fruits' weight, dimensions, and thickness were similar in both cases. Comparison of the pepper fruit extracts in terms of total phenolic content, antioxidant, and antiradical activities indicated differences that were not statistically significant. Photometric and spectroscopic studies both showed a smaller distribution of values in the case of the glass-PV greenhouse, probably indicating a more consistent phytochemical profile.
Covering only a small proportion (ca. 20%) of the greenhouse roof with photovoltaic panels contributes considerably to its energy demands without affecting plant growth and quality. © 2018 Society of Chemical Industry.
光伏（PV）为温室的能源需求提供了一种替代解决方案。本研究评估了安装在温室屋顶上的光伏板及其造成的部分阴影对实验种植辣椒（Capsicum annuum cv. California Wonder）生长参数和生长指标的影响。评估了植物的生长、抗氧化特性、自由基清除活性、总酚含量以及酚类和代谢物谱（使用 LC-MS 光谱法和 NMR 光谱法）。
提供了整个种植期的数据。结果表明，在白天和晚上，玻璃和玻璃-PV（安装有光伏板的玻璃）温室的室内温度相似。玻璃-PV 温室的产量更高。两种情况下，辣椒果实的重量、尺寸和厚度都相似。总酚含量、抗氧化和抗自由基活性方面的辣椒果实提取物比较表明，差异不具有统计学意义。光度和光谱研究都表明，在玻璃-PV 温室的情况下，值的分布范围较小，可能表明更一致的植物化学特征。
仅用光伏板覆盖温室屋顶的一小部分（约 20%）就可以大大满足其能源需求，而不会影响植物的生长和质量。 © 2018 化学工业协会。
