Canadian Forest Service Publications
Meteorological factors affecting conifer pollen dispersal on Vancouver Island. 1964. Ebell, L.F.; Schmidt, R.L. Government of Canada, Department of Forestry, Forest Entomology and Pathology Branch, Ottawa. Department of Forestry Publication No. 1036. 34 p.
Issued by: Pacific Forestry Centre
Catalog ID: 23953
Availability: PDF (download)
Hecords of pollen dispersal and meteorological data" were collected over three seasons along an elcvational transact. Primnry emphasis was on Douglas Fir, but pollen dispersal characteristics of associated species were also investigated. Preliminary information was obtained concerning the relationship between temperature and the production and maturation of male cones. Multiple regression analysis was employed to evaluate the relationship between meteorological factors and pollen dispersal. The following subjects are treated at some length: weather controls, duration of pollen release, dispersal distance, lapse rates and diurnal cycle. The final section is concerned with the application of the results, stressing several aspects of value to the tree breeder.