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Notes: The Role of Mist and Chemical Treatments in Rooting Loblolly and Shortleaf Pine Cuttings

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Abstract:

Quantity of mist fall is an important influence on the rooting of loblolly pine (Pinus taeda L.) cuttings. The best misting regime (0.05 mm to 0.1 mm/h) tested resulted in 60 percent rooting by 4-year-old loblolly cuttings. Variation in mist fall accounted for 75 percent of all variation in rooting success. Too much mist fall inhibited rooting. Rooting by loblolly pine and shortleaf pine (Pinus echinata Mill.) was also promoted by half-strength Hare's powder, but 1 percent IBA alone was effective on shortleaf pine. Foliar sprays of silver nitrate were ineffective, but did limit the development of algae on the cuttings. Forest Sci. 26:651-655.

Keywords: Pinus echinata; Pinus taeda; ethylene; indolebutyric acid; silver nitrate; tree improvement; vegetative propagation

Document Type: Miscellaneous

Affiliations: Graduate Student, Cornell University, Ithaca, NY 14853

Publication date: December 1, 1980

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