Cuttings of Tokay and Delaware were stored at 32°F for 0, 2, 4, or 6 weeks, and then placed in containers in the greenhouse so that the bottom 3 or 4 inches were covered with water. Although cold treatment did not hasten breaking of rest of the first cuttings to show bud growth, the percentage that broke was usually increased by longer storage at 32°F. The combination of gibberellin and cold treatment prolonged rest over that caused by low temperature only. Warm water, ethylene chlorohydrin, thiourea, and rindite treatments hastened breaking of bud rest in Thompson Seedless. Gibberellin strikingly delayed breaking of rest, and NAA usually resulted in some delay. Planting of cuttings in sand or vermiculite gave much poorer results than when bases of canes were placed in tap water or nutrient solution. The best growth of shoots occurred in nutrient solution. When gibberellin in lanolin was applied to buds or basal ends of Thompson Seedless cuttings, bud break was delayed. Cuttings in NAA rooted profusely, but those in gibberellin failed to root. Cuttings placed in a mixture of the two compounds responded like those in gibberellin alone. Zinfandel, Tokay, and Thompson Seedless vines were pruned in the autumn while foliage was yet green and healthy, and sprayed with gibberellin at 0, 10, 50 and 250 ppm. With Zinfandel one series of unpruned vines also was sprayed. The following spring foliation was delayed as a result of the gibberellin, especially on vines with leaves at time of spraying. It is presumed that gibberellin reached the buds through the leaves. Similar results were obtained with Tokay, but delay in bud break was not striking in the case of Thompson Seedless.