| 摘要 |
A new and distinct cultivar of Hydrangea macrophylla (Thunb.) named 'BC6.1' originated as a controlled cross between unpatented varieties. The cultivar 'BC6.1' can be blue or red depending on the acidity of the soil and the presence of aluminum. The variety 'BC6.1' has large attractive inflorescences with large sepalous florets, distinct sepal pigmentation and good commercial characteristics. When grown in the presence of aluminum, the under side of the sepals is R.H.S. 86 A (violet group), the underside of the sepals is R.H.S. 88 D (violet group).
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