Document Type
Article
Publication Date
1965
Keywords
Pollen; White spruce; Black spruce; Plant breeding
Abstract
Viable pollen was successfully forced from winter-collected cuttings of white and black spruce, as well as of a hybrid of them. The natural time difference in flowering was overcame, thus providing a tool for interbreeding these species. During forcing, and naturally on the trees, pollen always shed from white spruce first, then the hybrid and finally from black spruce. Using departures from long-range weather averages, a heat-requirement difference was postulated for each species to account for the time difference in their flowering.
First Page
103
Last Page
105
Recommended Citation
Winton, L. L.
(1965).
Early Pollen Forcing in a White x Black Spruce Hybrid and its Parental Species.
Journal of the Minnesota Academy of Science, Vol. 32 No.2, 103-105.
Retrieved from https://digitalcommons.morris.umn.edu/jmas/vol32/iss2/10
Primo Type
Article