Abstract
Capsicum annuum L. cv. Ramillete fruits grown in the field were covered 60 d after flowering with “white”, yellow, red and blue cellophane filters. Two other sets were left in full sunlight and under cover, respectively. After 30 d of treatment, during the ripening period, the contents of individual carotenoids were analyzed.
The red radiation was the most effective to increase the carotenoid biosynthesis, but the green and blue radiations inhibited their production. Either class of filters inhibited the formation of capsanthin, the most important carotenoid in the production of red colour of the maturation, but capsorubin, the other carotenoid responsible for the maturation colour, was more enhanced in the shade and under red radiation. Neither type of radiation was so efficient in increasing the total carotenoids content as the full sun radiation.
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Lopez, M., Candela, M.E. & Sabater, F. Carotenoids fromCapsicum annuum fruits: Influence of spectral quality of radiation. Biol Plant 28, 100–104 (1986). https://doi.org/10.1007/BF02885203
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DOI: https://doi.org/10.1007/BF02885203