Vegetative Propagation of Pinus radiata by Means of Needle Fascicles
Abstract:Experiments were performed to find out how to root short shoots of Pinus radiata D. Don and to cause them to sprout. Best rooting conditions for short shoots were: A basic treatment with IBA 50 ppm for 24 hours, then planting at 20-25°C under 12 hours of light per day. Fascicles from trees older than 9 years could not be rooted. There were strong suggestions that root-forming capacity was unequally distributed along the stem and that rooting capacity showed seasonal fluctuations. Best time for taking cuttings under central Chilean conditions seemed to be winter and early spring. A zone of maximum short shoot bud length was found and 58 percent of rooted fascicles from this zone sprouted.
Document Type: Journal Article
Affiliations: Laboratorio de Fisiologia Vegetal, Estacion Experimental Agronomica, Universidad de Chile, casilla 1004, Santiago de Chile
Publication date: December 1, 1966
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