Fig. 4. Relative level of expression of galactinol synthase gene (msaCIF) in crowns of the cold-tolerant cv. Apica and Rambler and the cold-sensitive cv. CUF 101. Plants were acclimated to natural temperature conditions in an unheated greenhouse as described in Castonguay and Nadeau (1998). Means ± SEM (n = 3). Experiment 2.