The Hardy Citrus of Texas — Part II
Kumquat, mandarin, and Yuzu experiments, including Brown’s account of ClemYuzu 2-2.
Original report: C. T. Kennedy, reporting from the notes of John R. Brown, M.D.
An original World of Citrus summary. Historical observations retain their original context; reported survival is not a guaranteed planting limit.
A wider breeding palette
Part II follows Brown’s work with kumquat, Chinotto, Changsha, Citrus ichangensis, and Yuzu. The families varied in fertility, flavor, productivity, and survival. Severe freezes repeatedly ended promising experiments.
The ClemYuzu family
After the January 1961 freeze, Brown waited for a Clementine tree to resume flowering, then pollinated it with Yuzu. Its seedlings became the ClemYuzu family.
He described 2-2 as capable of excellent sweetness, but inconsistent: fruit could become dry, and heavy crops could alternate with unproductive years. He reported survival around −15°C (5°F) with slight damage and no crop the following year. Seedlings of 2-2 performed differently from the mature selection.
Keep the selections distinct
The account treats 2-2, 1-5, and 3-3 separately; it associates 3-3, or a similar clone, with Tingletongue. Those names should not be treated as interchangeable.