PBS NewsHour

Cloning Trees at the Tidal Basin

Clip: 04/10/2013 | 2m 19s

Plant geneticist Margaret Pooler explains how horticulturists have been propagating the 1912 cherry trees along Washington, D.C.'s Tidal Basin in order to preserve their heritage and create new trees.

Aired: 04/10/13

Rating: NR

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