Douglas-fir provenance phenology observations

Abstract

Lavadinović V., Isajev V., Rakonjac L., Popović V., Lučić A.: Douglas-fir provenance phenology observations. Ekologia (Bratislava), Vol. 32, No. 4, p. 376-382, 2013.Introduction of species involves adaptation, productivity and success in new types of environmental conditions. The introduction also includes confirmation to bring in only species which are superior on their natural habitat. In Canada and western North America, Douglas fir (Pseudotsuga menziesii/Mirb./Franco) is one of the most ecologically and economically value trees. In Europe, New Zealand, Australia and Chile, Douglas fir is important as an exotic fast-growing timber species. Douglas fir has one of the widest natural ranges of any tree species, extending from the Pacific Coast to the eastern slope of the Rocky Mountains and from 19°N in Mexico to 55°N in western Canada. In Serbia, from the original seeds introduced from British Columbia and Canada, the experimental Douglas-fir provenance is established in a few locations. One of the main dangers for the Douglas fir is its sensitivity to the occurrence of late frost in spring and early occurrence of frost in the autumn. The aim of the paper is to test the effect of environment on the expression of Douglas-fir seed transfer. Bud burst phenology is closely related to genecology of introduced species. Douglas fir is susceptible to cold climate and most of its genetic structure and ability depends on its ecological adaptability. In order to avoid errors introduction of Douglas-fir provenances that are sensitive to the occurrence of extreme temperature, applied are researching for buds phenological changes Douglas fir, as an introduced species, has to be tested at the provenance level before its introduction to the new sites in Serbia.

Survival of Douglas-fir provenances in Austria: site-specific late and early frost events are more important than provenance origin

“…The cascade and coastal provenances were also found to have superior productivity across a wide range of planting conditions and are expected to be the most productive in climate change across many regions in Europe (Chakraborty et al 2015;Chakraborty et al 2016). Genetic variation in frost damage and resistance have been studied extensively in North America (Emerson et al 2006;St Clair 2006;Bansal et al 2015) but rarely in Europe (but see; Lavadinović et al 2013;Malmqvist et al 2017). Phenology plays an important role in genetic variation in frost tolerance in temperate plants (Cooper et al 2019).…”

“…Phenology plays an important role in genetic variation in frost tolerance in temperate plants (Cooper et al 2019). Interior provenances are likely to have less resistance against late frost in spring because they flush earlier than coastal provenances (St Clair 2006;Wolf 2012;Lavadinović et al 2013;Bansal et al 2015;Malmqvist et al 2017). Coastal provenances, however, may exhibit higher sensitivity to early frost events in autumn because they need longer time for bud set and hardening (Aitken et al 1996;Lavadinović et al 2013;Malmqvist et al 2017).…”

“…Interior provenances are likely to have less resistance against late frost in spring because they flush earlier than coastal provenances (St Clair 2006;Wolf 2012;Lavadinović et al 2013;Bansal et al 2015;Malmqvist et al 2017). Coastal provenances, however, may exhibit higher sensitivity to early frost events in autumn because they need longer time for bud set and hardening (Aitken et al 1996;Lavadinović et al 2013;Malmqvist et al 2017). We, however, did not find any evidence to this difference in spring and autumn frost sensitivity among Douglasfir provenances in our study, probably, because both early and late frost events play an equally important role in our regions.…”

Soils classified in the Arboretum Mlyňany, Slovakia

“…The introduction of a species involves adaptation, productivity and reproduction success in new environmental conditions. An introduction also requires to ensure that the species related are superior at their natural habitat (Lavadinović et al, 2013). Good knowledge of soil properties is crucial for the successful introduction of woody plants not only into the Arboretum Mlyňany but also to other parks and ornamental zones.…”

Growth of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) in the Region of Yundola Training and Experimental Forest Range, Bulgaria

“… Douglas-fir is one of the fastest growing and highly productive coniferous tree species [1][2][3]. In its natural range, the species grows from sea level up to 3,000 m on the slopes of the Rocky Mountains [4].…”