Tang, N.; Wang, J.; Zhang, B.; Chen, H.; Qiu, M. Chromatic Effects of Supplemental Light on the Fruit Quality of Strawberries. Horticulturae2023, 9, 1333.
Tang, N.; Wang, J.; Zhang, B.; Chen, H.; Qiu, M. Chromatic Effects of Supplemental Light on the Fruit Quality of Strawberries. Horticulturae 2023, 9, 1333.
Tang, N.; Wang, J.; Zhang, B.; Chen, H.; Qiu, M. Chromatic Effects of Supplemental Light on the Fruit Quality of Strawberries. Horticulturae2023, 9, 1333.
Tang, N.; Wang, J.; Zhang, B.; Chen, H.; Qiu, M. Chromatic Effects of Supplemental Light on the Fruit Quality of Strawberries. Horticulturae 2023, 9, 1333.
Abstract
Supplemental light is widely applied in greenhouses for promotions of the product and flavors of strawberries in global markets. Present selections of colored lights are, however, quite empirical or qualitative, from the aspect of photometry or colorimetry. The accurate control of chromatic parameters of supplemental light and their chromatic influences on fruit quality has been under-studied. In this study, color parameters including correlated color temperatures (CCTs) and illuminance of supplement lights are precisely controlled using a digitally color-coding method. We systematically investigate the chromatic effect of supplemental light on five parameters of strawberries: plant height, single weight, fruit hardness, soluble solids, and titratable acids. Results show that the supplement light generally lowers down the single weight and the fruit hardness, increases the plant height, the contents of soluble solids and titratable acids. The chromatic dependences for the five parameters are different and might be strengthened, weakened, or shifted by light illuminance. We demonstrate the beneficial roles of supplemental light in accelerating the maturation and enhancing the flavor of strawberries in greenhouses cultivation. The results pro-vide valuable guidance for the effective cultivation of strawberries. Moreover, the controlling method for accurate colors is ready for the implementation of supplemental lights in other fruits or plants.
Keywords
strawberries; supplemental light; color temperature; color coding
Subject
Biology and Life Sciences, Horticulture
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
