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- 3Genetic correlations
- 1Black spruce
- 1Breeding population
- 1Early selection
- 1Effective size
- 1Family contributions
Study of early selection in tree breeding - 3. A case study using early information to enhance selection efficiency in late trait in lodgepole pine (Pinus contorta spp. Latifolia)Download
We present a selection procedure that combines early performance from retrospective study and late performance from field testing into an index designed for enhancing the selection efficiency of the late performance. The prerequisite is that early performance from retrospective study and late...
Maximizing gain at restricted group coancestry in selection from populations with a hiearchical structureDownload
A general model was derived to find a set of optimal family contributions within a single cycle of selection from populations with a strictly hierarchical structure. The model maximized genetic gain at restricted selection proportion and group coancestry, or minimized group coancestry at...
Genetic variation in height, branch and needle lengths of Pinus sylvestris L. from Siberia tested in Alberta, CanadaDownload
We performed the analysis of variance and covariance on height, branch length, height to branch length ratio, and needle length measurements from thirty open-pollinated families of Pinus sylvestris L. from Siberia, Russia. This progeny trial was replicated on three sites in central Alberta,...
Differential growth and rooting of upland and peatland black spruce, Picea mariana, in drained and flooded soilsDownload
A reciprocal experiment was analyzed to determine whether 30 open-pollinated families of peatland and upland populations of black spruce [Picea mariana (Mill.) B.S.P.] sampled from a single area in north-central Alberta, Canada, performed consistently when grown in either flooded or well-drained...