催芽劑對不同產期‘巨峰’葡萄萌芽之影響

Effects of Forcing Chemicals on Budbreak in Different Cropping Cycles of 'Kyoho' Grapevines

劉惠菱(Huei-Ling Liu)；葉文彬(Wen-Pin Yeh)；張致盛(Chih-Sheng Chang)

休眠 ； 氰胺 ； 氰氨基化鈣 ； PE溫室 ； 修剪 ； dormancy ； hydrogen cyanamide ； calcium cyanamide ； PE house ； pruning

臺中區農業改良場研究彙報

122期（2014 / 03 / 01）

11 - 22

繁體中文

本研究探討‘巨峰’葡萄（＂Vitis vinifera＂ L. × ＂Vitis labrusca＂ Bailey）不同產期調節模式下，利用催芽劑處理後調查其對萌芽之影響。在溫室葡萄於12月中旬使用氰胺2.5%配合刻傷處理組在處理後18天之萌芽率為65%，其餘處理之萌芽率尚在50%以下，催芽劑配合刻傷處理後萌芽7天之新梢呈現上位芽較強。第一收葡萄於1月下旬時使用氰胺5%配合刻傷催芽處理後28天萌芽率達95%，較其他催芽處理有較早且較高的萌芽率，氰胺或氰氨基化鈣配合刻傷處理之新梢長度較整齊。第二收葡萄在夏季以氰胺2.5%處理之萌芽較早，氰胺5%或氰氨基化鈣處理亦可達90%以上之萌芽率，且催芽劑不影響新梢之長度。

Effects of different chemical combinations with or without scarification on budbreak of 'Kyoho' grapevines (＂Vitis vinifera＂ L.× ＂Vitis labrusca＂ Bailey) were investigated in this study. In PE house, when canes were treated with bud forcing chemical in mid-December, the percentage of budbreak was 65% at 18 days after treatment of 2.5% hydrogen cyanamide with scarification. In other treatments the percentage of budbreak was lower than 50%. At 7 days after chemical treatments combined with scarification, the shoot length of apical buds was longer with stronger growth potential. In first crop, there was 95% budbreak in treatment of 5% hydrogen cyanamide plus scarification, higher than other treatments, the time of bubbreak was also the earliest. The shoot length did not very significantly among treatments of hydrogen cyanamide or calcium cyanamide with scarification. In the second crop, percentag budbreak of summer grapevine was the hightes and budbreak time was earlier in 2.5% hydrogen cyanamide. Percentage of budbreak was all higher than 90% in treatments of 5% hydrogen cyanamide and calcium cyanamide. Shoot length was not affected by budbreaking chemicals.