"Super" Spruce Seedlings Continue Superior Growth for 18 Years

Hans Nienstaedt

doi:10.2737/NC-RN-265

Treesearch

"Super" Spruce Seedlings Continue Superior Growth for 18 Years

Informally Refereed

Authors:

Hans Nienstaedt

Year:

1981

Type:

Research Note

Station:

Northern Research Station

DOI:

https://doi.org/10.2737/NC-RN-265

Source:

Research Note NC-265. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

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Download (PDF 513 KB): https://research.fs.usda.gov/download/treesearch/11171.pdf

Abstract

White 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.

Keywords

Picea glauca, juvenile selection, tree improvement and breeding, seed production areas, vegetative reproduction

Citation

Nienstaedt, 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