Figure 1.

Floral and vegetative terpene emission in cv Royal Gala. GC-MS analysis is shown for the predominant terpene volatiles trapped from the headspace of cv Royal Gala vegetative and floral tissues. Averaged data for biologically replicated analyses are shown. Terpenes produced at a rate less than 0.5 ng g⁻¹ fresh weight (FW) h⁻¹ are not included. The complete data set is presented in Supplemental Table S1. The bourbonene isomer was not determined, as the retention indices for α- and β-bourbonene are very similar.