From pictures in a Japanese agriculture book inherited from his father, Hung discovered some techniques to join and prop up vines. One method was to graft a young vine trunk and its branches onto an old but still healthy trunk of an old grapevine. The young vine drew strength and vitality from the old rootstock and merged with it to form a new vine that was just as sturdy as the original.
洪吉倍翻出一本爸爸留下的日文農業書，看圖操作，摸索出「寄接」、「扶植」等技術，把新生的葡萄枝幹和健壯的原生老幹嫁接起來，藉由原生種的強韌生命力拉拔，最後結合出和老葡萄樹同樣粗厚的「老幹新枝」。