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Effect of Gibberellic Acid on Seed Germination of Sitka Spruce

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The effects of gibberellic acid (GA2) on the seed germination of Picea sitchensis (Bong.) Carr. were studied. Concentrations of 0.1, 1.0 and 10.0 ppm failed to cause significant differences in germination rate or capacity compared with distilled water. A solution of 100 ppm significantly reduced the germination capacity determined at 35 days. Attention is drawn to the conflicting results so far obtained with coniferous species and to the need for research on the effects of other gibberellins.

Document Type: Journal Article

Affiliations: School of Forestry, Yale Univ., New Haven, Conn.

Publication date: June 1, 1964

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  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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