Original title: Red–Blue and White Supplementary Light Increase Carotenoid Accumulation and Improve Fruit Quality in Satsuma Mandarin: Associations with Chlorophyll Content and Carotenogenic Gene Expression
The researchers gave greenhouse-grown satsuma mandarins extra light in different colors. Red–blue light and white light worked best, raising carotenoid pigments in the rind and flesh. The main pigment, β-cryptoxanthin, increased most under red–blue light. These lights also raised several measures of fruit quality and changed the activity of genes involved in making carotenoidsColored plant compounds that include pigments such as β-cryptoxanthin..
Imagine ripening fruit on a kitchen counter with a lamp nearby. A dim lamp may not help much, and the color of the light can matter. In this paper, different lamp colors stand for the added lights, while the fruit’s color and contents show how it responds; red–blue and white light gave the strongest changes.
For citrus growers using greenhouses with little natural light, supplementary lighting may improve both fruit color and nutritional quality. The study also links these changes to higher leaf chlorophyll and shifts in genes involved in making and breaking down carotenoids.
The abstract reports results for greenhouse-grown satsuma mandarins and does not establish whether the effects hold in other citrus varieties or growing conditions. It does not provide details about the lighting schedules, sample sizes, or long-term effects.
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Red–Blue and White Supplementary Light Increase Carotenoid Accumulation and Improve Fruit Quality in Satsuma Mandarin: Associations with Chlorophyll Content and Carotenogenic Gene Expression — Wei Tao Hu, Wenli Yu, Dechun Liu et al. — Plants — doi:10.3390/plants15193067
Abstract licence: CC BY
Explanation generated by Synthesis from the abstract — it is not the original paper.