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葡萄环剥试验从1997－1999年连续3年在北京市昌平县流村镇露地葡萄园、通州区张家湾镇设施葡萄园、平谷县峪口镇露地葡萄园进行。露地栽培品种有：京亚、藤捻、乍娜、里扎马特、黑旋风设施栽培品种：京秀、87－1。每个品种速生长健壮的植株10株，每株选3个结果母枝，在果粒大小
Grape ring peel test from 1997 to 1999 for 3 consecutive years in Beijing Changping County stream village vineyards, Tongzhou District Zhangjiawan town vineyards, Pinggu County town of Yukou open-air vineyard. Open cultivated varieties are: Beijing Asia, Teng twist, Zina, Rizzmat, black whirlwind facilities Cultivation: Jingxiu, 87-1. Fast growth of each species of robust plants 10, each selected three results of the mother, in the fruit size