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Deployment of genetically improved loblolly and slash pines in the south
Foresters in the southern United States are responsiblefor more than 75 percent of the nation's tree planting, and more than 95 percent of the seedlings are genetically improved loblolly and slash
Relatedness and status number in seed orchard crops
Properties of status number and other measures of effective number may refer to rate or state, to the reference population or the development of an idealized population, and to different moments in the sexual cycle.
Genetic parameters from a clonally replicated test of black spruce (Piceamariana)
A clonally replicated field test of full-sib black spruce (Piceamariana (Mill.) B.S.P.) progeny was established at four locations in Nova Scotia. Estimated variance components for 5-year height
Prediction of genetic gain and gene diversity in seed orchard crops under alternative management strategies
Genetic gain and the gene diversity of seed crops from clonal seed orchards were formulated considering genetic selection, fertility variation and pollen contamination, and compared for five different management strategies and can be used for identifying favourable alternatives for the management of seed orChards.
Genetic variation in the diameter–height relationship in Scots pine (Pinus sylvestris)
It isicate that there is scope to modify the diameter-height relationship by selection and breeding, and that tall trees allocate relatively more resources to height growth than to diame- ter growth.
Genetic parameters and age–age correlations in a clonally replicated test of black spruce after 10 years
Height growth at 10 years from striking was assessed for clonally replicated full-sib black spruce families tested at three locations in central Nova Scotia and narrow-sense heritability estimates were lower at age 10 and gain estimates decreased, particularly for those strategies that capture gain primarily from additive effects.
Balancing Gain and Relatedness in Selection
An iterative search algorithm is proposed for finding this maximum under a given breeding-population size and gave markedly better combinations of gain and average coancestry when compared with a conventional method to control relatedness by restricting contributions from individual parents.
Estimating genetic gains from alternative breeding strategies for clonal forestry
Concepts and procedures are presented for the analysis of progeny trials that incorporate clonal replication as a means to resolve variance arising from nonadditive gene effects. Components of vari...
Comparisons of genetic parameters and clonal value predictions from clonal trials and seedling base population trials of radiata pine
It is concluded that it is best practice to predict clonal values by incorporating seedling base population data in the clonal analysis, and exploiting nonadditive genetic effects in clonal varieties will generate greater gains than that typically obtainable from conventional family-based forestry of radiata pine.