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Effect of Rehydration on in Vitro Germination of Loblolly Pine Pollen

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At moisture contents of less than 15%, loblolly pine (Pinus taeda L.) pollen displayed a marked sensitivity to rehydration prior to in vitro germination testing. At moisture contents above 15%, percent germination was relatively insensitive to increasing moisture content. The relationship between length of rehydration time and pollen moisture content was highly significant. However, the commonly used 16-hour rehydration period is longer than is necessary since 1-2 hours of rehydration adequately ensure peak germination. Shortening of the rehydration period allows operational tree improvement programs to test a greater number of pollen lots in a given period of time. South. J. App. For. 14(1):48-51.

Document Type: Journal Article

Affiliations: Project on Tissue Culture, Box 8002, North Carolina State University, Raleigh, 27695-8002

Publication date: 1990-02-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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