金香葡萄產期調節之研究　Ⅱ•改進芽體結實潛能與秋冬果品質之研究

Studies on Forcing Culture of Golden Muscat Grapevine (Vitis vinifera×Vitis labrusca) 2. Study on the Improvement of Fruiting Potential and Fall-Winter Fruit Quality

王為一(W. Y. Wang)

《中華農業研究》 38卷1期 (1989/03) Pp. 42-52

https://doi.org/10.29951/JARC.198903.0004

摘要

春季萌芽後，當新梢有7~8片葉片展開時，在第6節處摘心，可顯著改善二林鎮金香葡萄近基部芽體的結實潛能；在此情況下，50ppm的咖啡鹹、尿嘧啶及其混合液，並不能再增進近基部芽體結實潛能；且在第6節處摘心處理，可以減少各果園芽體結實潛能之差異。
在秋冬果生產試驗中發現二夏季越早進行促成栽培修剪處理者，其果實越早成熟，果汁可溶陸固形物含量越高，酸含量越低，糖酸比越近理想；越晚修剪處理者，其果實越晚成熟，果汁固形物含量越低，酸含量越高，糖酸比嚴重低下；並經製酒成品的品質比較發現相同結果。另秋冬果製酒成品的抽取物顯著較夏果成品高，因此本省葡萄酒一向缺乏抽取物的問題，似可經由秋冬果的生產而獲得改善。

並列摘要

The fruiting potential of basal buds of Golden Muscat grapevine at Er-lin town can be prominently improved by pinching at the 6th node as 7 to 8 new leaves have developed on new brust shoots in spring. This treatment also minimize the difference of fruiting potential at various vineyard. While, the chemical treatment of 50ppm of caffeine, uracil or the mixture of both is not effective.
In this experiment, it is found that the earlier the forcing pruning is practiced, the earlier the fruits ripen with higher soluble solids and lower acid content in fruit juice. On the other hand, the later the pruning is conducted, the lower soluble solids and the the higher acid the fruits contain.
This results are further confirmed by the wine quality made. The wine extract of fall-winter grape is significantly higher than that of summer fruit. Local grape wine should be able to reach a better quality level by producing fall-winter fruits instead of summer ones.