Frank C. Sorensen
Frank C. Sorensen
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- Image source: Open LibrarySP
Stratification period and germination of Douglas-fir seed from Oregon seed orchards
cover - Image source: Open LibrarySR
Stratification requirements for germination of western larch (Larix occidentalis Nutt.) seed
cover - Image source: Open LibraryGV
Genetic variation in rootability of cuttings from one-year-old western hemlock seedlings
cover - Image source: Open LibraryEO
Effect of date of cone collection and stratification period on germination and growth of Douglas-fir seeds and seedlings
cover - Image source: Open LibraryPO
Performance of wind-pollination families and intra- and inter-stand crosses on contrasting forest soils
cover - Image source: Open LibraryTS
The seed orchard tree as a pollen sampler
cover - Image source: Open LibraryCB
Correlation between dates of floral and vegetative bud flush in Douglas-fir
cover - Image source: Open LibrarySO
Self-fertility of a central Oregon source of Ponderosa pine
cover - Image source: Open LibraryTR
Two-year results of a west-east transect-provenance test of Douglas-fir in Oregon
cover
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- Open Work
Stratification period and germination of Douglas-fir seed from Oregon seed orchards
- Open Work
Stratification requirements for germination of western larch (Larix occidentalis Nutt.) seed
- Open Work
Genetic variation in rootability of cuttings from one-year-old western hemlock seedlings
- Open Work
Effect of date of cone collection and stratification period on germination and growth of Douglas-fir seeds and seedlings
- Open Work
Performance of wind-pollination families and intra- and inter-stand crosses on contrasting forest soils
- Open Work
The seed orchard tree as a pollen sampler
- Open Work
Correlation between dates of floral and vegetative bud flush in Douglas-fir
- Open Work
Self-fertility of a central Oregon source of Ponderosa pine
- Open Work
Two-year results of a west-east transect-provenance test of Douglas-fir in Oregon