Monoterpenes of Ponderosa Pine Zylem Resin in Western United States PDF Download
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Author: Richard Harrison Smith
Publisher:
ISBN:
Category : Genetics
Languages : en
Pages : 56
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Author: Richard Harrison Smith
Publisher:
ISBN:
Category : Genetics
Languages : en
Pages : 56
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Author: Richard H. Smith
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ISBN:
Category : Bark beetles
Languages : en
Pages : 468
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Author: Nancy D. Gordon
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ISBN:
Category : Forests and forestry
Languages : en
Pages : 404
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Author:
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ISBN:
Category : Forests and forestry
Languages : en
Pages : 636
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Author: United States. Superintendent of Documents
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Category : Government publications
Languages : en
Pages : 1228
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February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author:
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Category : Government publications
Languages : en
Pages : 832
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Author: Richard Harrison Smith
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Category : Monoterpenes
Languages : en
Pages : 12
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Monoterpene composition was studied in a number of hard pine species and results were compared with earlier work. (I) Intratree measurements showed strong constancy of composition in both single-stemmed and forked trees of ponderosa, Jeffrey, Coulter, and Jeffrey x ponderosa pines. In grafts of these and other pines, the scion influenced the root stock, but not the reverse. (2) Large intcrtree variation in composition was found in a small sample of seven hard pines native to Mexico; the value of monoterpenes in clarifying taxonomy of these pines remains uncertain. (3) An 80-tree plot of ponderosa is adequate to determine average monoterpene composition. For the best estimate of the kinds and abundance of types of composition, a 350-tree plot is needed. Short-column chromatographic analysis is acceptably accurate for rapid classification of a large number of samples.
Author: W. Wallace Covington
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 292
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Author:
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Category : Public administration
Languages : en
Pages : 1228
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Author: Frank C. Sorensen
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ISBN:
Category : Plant ecological genetics
Languages : en
Pages : 36
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