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Filtering by: Subject Douglas fir -- Reproduction Advisor Laver, Murray L. Contributor advisor sim Zaerr, Joe B.

The occurrence of abscisic acid in the dormant shoots of Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco]

Creator:

Webber, John Edinburgh

Abstract:

Methanolic extracts of the dormant Douglas-fir shoots (buds, leaves, and stems) were fractionated by solvent partitioning (sodium bicarbonate-diethyl ether). The acidic portion of the extract was subjected to column (Sephadex LH-2O, Silica Gel and Polyvinylpyrrolidone), preparative thick-layer and gas-liquid chromatography. Fractions collected from chromatographic separations were collected and tested for...

Resource Type:

Dissertation