Carbohydrate Composition and Freezing Tolerance of Canes and Buds in Vitis vinifera

In grapevines, buds and canes have different strategies of freezing tolerance - buds avoid freezing by supercooling, whereas canes tolerate extracellular freezing. To further understand the relationship between freezing tolerance and carbohydrate composition of these tissues in Vitis vinifera, analyses were made of starch, glucose, fructose, sucrose and raffinose of field-grown vines during natural acclimation and deacclimation over two years, …