Fig. 3

Frequency distributions of the mean values of six maturity traits of 185 cotton accessions in four environments. a whole growth period (WGP); b flowering time (FT); c flowering and boll-setting period (FBP); d node of the first fruiting branch (NFFB); e height of the node of the first fruiting branch (HNFFB); and f yield percentage before frost (YPBF)