Fig. 3

Ion components in self- and cross-pollinated pistils of tea plants. a 1 un-pollinated ‘Fudingdabai’ pistils; 2–5 self-pollinated ‘Fudingdabai’ pistils at 8 h, 24 h, 48 h and 72 h; 6–9 ‘Yulv’(♂) × ‘Fudingdabai’(♀) at 8 h, 24 h, 48 h and 72 h; 10 un-pollinated ‘Yulv’ pistils; 11–14 self-pollinated ‘Yulv’ pistils at 8 h, 24 h, 48 h and 72 h; 15–18 ‘Yulv’(♀) × ‘Fudingdabai’(♂) at 8 h, 24 h, 48 h and 72 h. b The Ca²⁺ and K⁺ content during self- and cross-pollinated pistils