Figure 9.

Amounts of IAA and IAA conjugates in the terminal buds (A) and root collars (B) of the oilseed rape cultivars during the autumn growth period: 1—free IAA; 2—IAA conjugates. There were four biological experiments with three replicates in each. Within each organ, different lowercase letters indicate significant differences in the mean amount of free IAA between the two oilseed rape cultivars. Within each organ, different uppercase letters indicate significant differences in the mean amount of IAA conjugates between the two oilseed rape cultivars. Bars are the means ± SD with different letters and are significantly different at p < 0.05 according to the Duncan test.