Fig. 1

Phenotypic comparison of the spr9 mutant and wild type R20-1. a: The spr9 mutant showed the phenotype of spreading panicles compared with R20-1. b, c, d, e, f, g, h, and i indicate no differences in plant height, panicle length, number of effective panicles, spikelets per panicle, seed setting rate, 1,000-grain weight, grain length and grain width between R20-1 and the spr9 mutant, respectively