Extended Data Fig. 1: The phenotype of parental lines of hybrid rice variety TYHZ (TFA X HZ) and XQHZ (XQA X DHZ).
From: Modulation of histone acetylation enables fully mechanized hybrid rice breeding

a-b, Mature grains (a) and panicles (b) of the maintainer line TFB, the improved maintainer line XQB with small seeds, the restorer line HZ, and the improved restorer line DHZ with large seeds. c-f, The grain length (c), grain width (d), grain thickness (e), and 1,000 grain weight (f) of parental lines TFB, XQB, HZ, and DHZ. n = 60 (c-d), n = 40 (e), and n = 3 (f). g-h, The plant height (g) and panicle length (h) of parental lines TFB, XQB, HZ, and DHZ. n = 12 (g), n = 13 (TFB, XQB, HZ) and 10 (DHZ) in (h). Values in (c-h) are given as mean ± SD. **P < 0.01 compared with TFB or HZ by Student’s t-test. ns, not significant (Student’s unpaired t-test). Bars: 3 mm (a) and 5 cm (b).