Answer

On 22 December 2003, fifteen plants each of 'Glen Moy', 'Glen Ample' and 'Glen Lyon' from each defoliation treatment were placed in a cold store set at 4.1°C. To prevent dessication damage, each plant was wrapped in black plastic. Control plants were randomly placed in the glasshouse (as described in Experiment 4) set at 17.1°C. Five plants of each cultivar from each defoliation treatment were removed after receiving 2, 6 or 10 weeks of chilling and were randomly placed in the glasshouse. Using random number tables, one cultivar from each treatment was randomly placed in each of the five glasshouse blocks when removed from the cold stores.