Distribution of 3-Isobutyl-2-methoxypyrazine across Rachis Components of Vitis vinifera Shiraz and Cabernet Sauvignon

Figure 5

Estimated marginal means of IBMP concentration (a) (ng/kg rachis ± SE) and (b) (ng/kg component ± SE) in different Shiraz rachis components at harvest from control ( yellow) and box ( charcoal) grape bunches grown in the Barossa Valley (2022) considering the interaction between rachis component and light. Bars sharing the same letter within the same plot are not significantly different (linear mixed model, α = 0.05, Bonferroni-adjusted). Values for Figure 5(a) were calculated from Figure 5(b) by considering the proportion (% w/w) of individual rachis components to total rachis fresh weight (Figure S2 of the Supplementary Material).

(a)

(b)