Vegetative propagation of quaking aspen
AuthorsW. J. Barry
R. M. Sachs
Authors AffiliationsW. J. Barry is a graduate student, Department of Environmental Horticulture, University of California, Davis; R. M. Sachs is Associate Plant Physiologist, Department of Environmental Horticulture, University of California, Davis.
Hilgardia 22(1):14-16. DOI:10.3733/ca.v022n01p14. January 1968.
Although Quaking Aspen, Populus tremuloides Michaux, is not an economically important forest tree in California, it does show promise as a landscape tree, particularly because of its wide distribution and demonstrated hardiness in many climatic zones. Studies on Quaking Aspen indicate that vegetative propagation of this difficult-to-root species may be commercially feasible. Rooting of stem cuttings varies from 0 to 100% depending upon the time of year and the clone from which cuttings are taken. Cuttings treated with indolebutyric acid (IBA) have a higher rooting percentage than do the controls. Age of wood is the most important factor in rooting of Quaking Aspen. Every adventitious stem taken from root cuttings of mature trees rooted under intermittentmist conditions with IBA treatments, whereas stem cuttings from mature trees rooted only in the greenwood state. Hence, rooting of adventitious shoots may prove the best method for commercially propagating Quaking Aspen.
Also in this issue:Influences of forests on snow in the ponderosa-sugar pine-fir zone of the central Sierra Nevada
Mobile gamma irradiator
Orchard heating with solid fuel heating bricks — under minimum favorable conditions
Fertilizer trials with safflower in sacramento valley
Hollow stem in broccoli
Decline of quince-rooted pear trees in Santa Clara County
Washing citrus leaves for leaf analysis
Soil desiccation and fumigation for armillaria root rot in citrus
Sugar beet yields increased by phosphorus fertilization