62 pages matching seed orchards in this book
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Keynote Address Net Retrieval Seed Collection
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Abies albicaulis average British Columbia buds budworm caches cedar Clark's nutcracker clones cold stratification cone and seed cone collection cone crop cone production conelets conifer seed contorta damage Department of Agriculture dormancy Douglas-fir Douglas-fir cone effect Engelmann spruce fertilizer filled seeds flowering Forest and Range Forestry genetic germination gibberellin grand fir harvest Hedlin hydrometer Idaho Inland Mountain West input Intermountain Larix lodgepole pine mature Missoula mixed retardant module moisture Montana monticola occur Owens and Molder percent pest Pharis Phos-Chek Picea pine cone pine seed pinyon plants pollen pollen-cone ponderosa pine Pseudotsuga menziesii ramets Range Experiment Station reproductive Research Ross salt content sample seed crop seed dispersal seed insects seed orchards seed production seed yield seedlings seedlots seeds per cone Sirococcus species stands storage temperature treatment Tree Improvement U.S. Department viscosity western larch western redcedar western white pine white spruce