Figure 6.

Leaf, fibre and anthocyanidin contents in HS2, NCCs and their F₄ lines with fibre colour stably improved. (a) Leaves of C312, HS2, homozygous stable F₄ lines derived from ZX1×HS2, XC7×HS2 and naturally coloured cotton (ZX1 and XC7); (b) Fibres of HS2, NCC and homozygous stable F₄ lines (from left to right: HS2; F₄ progenies from the crosses; NCCs ZX1, T586, XC5 or XC7). Hybrid crosses and their parent lines marked in the pictures. (c) Anthocyanidin content in leaves of HS2, NCC lines, and their stable fibre colour improved lines. (d) Anthocyanidin content in 20 DPA fibres of HS2, NCC lines, and their stable fibre colour improved lines. DPA: Days Post‐Anthesis. ‘a’ to ‘c’ indicate statistically significant differences between the anthocyanidin contents of the indicated seedlings, as determined by one‐way analysis of variance (ANOVA), followed by Tukey’s least significant difference (LSD) test (P < 0.05).