Parameters affecting shoot production and rooting of cuttings from lodgepole pine hedges |
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| Authors: | Anders Fries Zeki Kaya |
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| Institution: | (1) Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, S-901 83 UMEÅ, Sweden;(2) Department of Biology, Middle East Technical University, 06531 ANKARA, Turkey |
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| Abstract: | By propagating lodgepole pine (Pinus contorta) cuttings in vivo, we obtained after 7 growing cycles (ca 3.5 years) in a greenhouse, sufficient number of cuttings from most families to establish clonal progeny tests. Twenty-one full-sib families with approximately 20 clones per family were studied for five years. Years when cuttings were set, families within latitude and clones within families differed significantly in rooting percentages, with the variance components 4.2%, 8.2% and 9.5%, respectively. One way to get a frequent and uniform rooting is to take cuttings from non-leading shoots since they have higher rooting percentage than leading shoots. Neither total length of the cuttings nor length of the primary needles were significantly correlated to rooting percentage. With appropriate management of the ortets and the cuttings during rooting, most clones could be included in a cutting propagation program. |
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| Keywords: | Pinus contorta vegetative propagation leading shoot cuttings number of potential cuttings length of cutting needle length family and clone differences |
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