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Figure 4. Effect of cutting maturity on rooting success with K-IBA. With 25 successful cuttings possible per repetition, comparisons among hormone concentrations and maturity are displayed. Lighter bars (left) indicate all juvenile cuttings at differing K-IBA (potassium salt of indole-3-butyric acid) concentrations. Dark bars (right) indicate mature cuttings at differing K-IBA concentrations. Cutting age is defined as propagules harvested from 2-y-old stock plants 6 wk after breaking dormancy (M: mature) and cuttings harvested from seedlings 14 wk after germination (J: juvenile). Bars represent means with standard error based on standard one-way ANOVA. Treatment groups (columns) not sharing a letter are significantly different at P = 0.05 level based on adjusted P values using Tukey’s HSD.
Figure 4.

Effect of cutting maturity on rooting success with K-IBA. With 25 successful cuttings possible per repetition, comparisons among hormone concentrations and maturity are displayed. Lighter bars (left) indicate all juvenile cuttings at differing K-IBA (potassium salt of indole-3-butyric acid) concentrations. Dark bars (right) indicate mature cuttings at differing K-IBA concentrations. Cutting age is defined as propagules harvested from 2-y-old stock plants 6 wk after breaking dormancy (M: mature) and cuttings harvested from seedlings 14 wk after germination (J: juvenile). Bars represent means with standard error based on standard one-way ANOVA. Treatment groups (columns) not sharing a letter are significantly different at P = 0.05 level based on adjusted P values using Tukey’s HSD.

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