a Levels of probability: * and** = 0.05 and 0.01, respectively.
b transformation to stabilize variances: = ln (Y).
Table 4. Ascorbate and glutathione redox state on symptomless or symptomatic leaves collected during stretched-out leaves (SL), fruit setting (FS), cluster closing (CC) and bunch ripening (BR) phenological phases from cv. Italia vines healthy (HV), vines with brown wood-streaking (BWSV) or with brown wood-streaking and white rot (BWSWRV)a