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Notes: Light Requirements for Germination of Loblolly Pine Seeds

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The light requirement for germination of loblolly pine seeds can be met during stratification or germination. One hour of irradiation with light at a wavelength of 660 nm and an intensity of 600 ergs/cm²/sec fulfilled the light requirements for germination of seeds stratified for 28 days. Fifteen minutes of the same light at an intensity of 2000 ergs/cm²/sec was adequate when the stratification period was only 15 days. Exposure of seeds to light during stratification neither hastened nor increased germination in light. Forest Sci. 17:285-286.

Keywords: Pinus taeda; seed germination

Document Type: News

Affiliations: Principal Silviculturist, Timber Management Research, Southern Forest Exp Sta., USDA Forest Service, Pineville, La.

Publication date: September 1, 1971

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