Increasing Planting Stock Size by Family Selection in California Ponderosa Pine PDF Download
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Author: James L. Jenkinson Publisher: ISBN: Category : Ponderosa pine Languages : en Pages : 16
Book Description
Wind-pollinated families from four geographic areas in the northern Sierra Nevada were tested in the nursery. For every area, the native families differed significantly from each other in 1-year seedling height, and in 2-year height, diameter, and stem volume. Family growth was poorly correlated with family seed weight; it was independent of germination speed and seed parent stem volume. The size of planting stock can be improved and small-grade seedling production decreased by eliminating from future collections seed trees whose families show poor growth in the nursery.
Author: James L. Jenkinson Publisher: ISBN: Category : Ponderosa pine Languages : en Pages : 16
Book Description
Wind-pollinated families from four geographic areas in the northern Sierra Nevada were tested in the nursery. For every area, the native families differed significantly from each other in 1-year seedling height, and in 2-year height, diameter, and stem volume. Family growth was poorly correlated with family seed weight; it was independent of germination speed and seed parent stem volume. The size of planting stock can be improved and small-grade seedling production decreased by eliminating from future collections seed trees whose families show poor growth in the nursery.
Author: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) Publisher: ISBN: Category : Forests and forestry Languages : en Pages : 596
Author: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) Publisher: ISBN: Category : Forests and forestry Languages : en Pages : 596
Author: James L. Jenkinson
Author: James L. Jenkinson
Author: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
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Author: Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
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Author: Walter F. Megahan
Author: James L. Jenkinson
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