Fig. 3
Effects of Bacillus thuringiensis (Bt) gene on the boll number (A), boll weight (B), seed cotton yield (C), and lint percentage (D) in the field without or with potassium fertilizer (225 kg·hm−2 K2O). The available K+ in soil was 47.8 mg·kg−1. WT: wild type (Jihe 321); OE-29317 and OE-29312: transgenic Bt lines. Bars with different letters indicate significant differences within the same year (P < 0.05). Error bars depict standard errors of the mean