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"Super" Spruce Seedlings Continue Superior Growth for 18 YearsAuthor(s): Hans Nienstaedt
Source: Research Note NC-265. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Publication Series: Research Note (RN)
Station: North Central Research Station
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DescriptionWhite spruce seedlings--20, 19, 18, and 17 inches tall--were selected among 2-2 transplants; controls from the same beds averaged 7.7 inches tall. After 18 years in the field, the selected seedlings continued to have a 30 percent height growth advantage over the controls. This note discusses how to incorporate super spruce seedlings into a tree breeding program.
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CitationNienstaedt, Hans. 1981. "Super" Spruce Seedlings Continue Superior Growth for 18 Years. Research Note NC-265. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
KeywordsPicea glauca, juvenile selection, tree improvement and breeding, seed production areas, vegetative reproduction
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