H2CN2和CaCN2对酿酒葡萄萌芽开花及成熟期的影响

试验于2001年10月—2002年8月在攀枝花进行。处理药剂及其浓度为16.7%CaCN2、0.5%~2.0%H2CN2、0.5%~2.0%H2CN2+1%吐温80；处理时期为12月25日、1月10日、1月25日。最佳处理时间是1月10日；最佳处理组合是1.0% H2CN2 + 1.0%吐温80，霞多丽、佳美、梅尔诺、黑虎香分别提前萌芽16、13、11、4d；提前成熟17、13、14、6d；提高萌芽率4%、12%、17%、9%；芽眼成枝率提高40%、29%、37%、12%；提高果枝率为9%、8%、28%、4%，提高结果系数7%、7%、37%、3%。不同品种对处理反应有差异，对照黑虎香有药害现象。

Effect of CaCN2 and H2CN2 on Bud-breaking, Blossoming and Fruit Maturing of Wine Grape

An experiment on prompting viticulture in the field was done during Oct., 2001-Aug., 2002.in Panzhihua vineyard. The treating with chemicals and their concentration were 16.7% CaCN2, 0.5%~2.0% H2CN2, 0.5%~2.0% H2CN2 1.0%Tween80.The treatment on Jan.10 (1.0%H2CN2 1.0% tween 80) had the best dormancy breaking efficiency. It advanced 'Chardonnay', 'Gamay', 'Merlot' and 'Fox' sprouting by 16, 13, 11, 4 days, maturity periods by 17, 13, 14, 6 days respectively. It also enhanced the bud breaking percentages of the four varieties by 4%, 12%, 17%, 9% respectively, bud's shoot-forming percentages by 40%, 29%, 37%, 12%, the fruit shoot percentages by 9%, 8%, 28%, 4%, fructification by 7%, 7%, 37%, 3% respectively. But the investigated data showed that the effects of the advancing maturity period were not remarkable by chemical treating.