SINGH, D. B.; AHMED, N.; SINGH, S. R.; MIR, K. A.; LAL, S. Variation in Chlorophyll and Carotenoid Contents in Kale (Brassica Oleracea) As Influenced by Cultivars and Harvesting Dates. Indian J Agri Sci 2014, 84 (10), 1178–81. https://doi.org/10.56093/ijas.v84i10.44123.