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Growth status of carrots from five different developmental stages in this research. (A) Stage1, 20 days after sowing, (B) stage2, 40 days after sowing, (C) stage3, 60 days after sowing, (D) stage4, 75 days after sowing, (E) stage5, 90 days after sowing. Black lines in the lower right corner of each plant represent 2 cm in that pixel.
