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Controlled Pollination in Eastern Redceadar and Rocky Mountain Juniper

Pollination with forced and fresh eastern redcedar pollen was compared to wind pollination (and unpollinated controls). This is the first attempt at controlled pollination in juniper. Seeds were extracted, and cutting tests and germination tests were conducted to evaluate the success of pollinations. Artificial crosses were also made with eastern redcedar pollen on a single Rocky Mountain juniper female tree. First-year fruits were collected and evaluated. Preliminary results indicate that wind pollination is less reliable than control-pollination in obtaining sound seed set of eastern redcedar. This may explain the high proportion of empty seeds found and the low reproduction obtained in many natural stands.


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Author(s): Gilbert H. Fechner

Publication: Tree Improvement and Genetics - Lake States Forest Tree Improvement Conference - 1975