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Early genetic evaluation of growth rhythm and tolerance to frost in Picea abies (L.) Karst

Thesis/Dissertation:

Abstract

Main objectives of the thesis were to estimate geographical and genetic variation in growth rhythm and tolerance to frost-related stresses in seedlings of Picea abies (L.) Karst. and to assess juvenile-mature (J-M) relationships after frost desiccation simulated at the juvenile stage. Phenology and susceptibility to spring frosts of 108 Swedish and 16 eastern European provenances were studied in a short-term field trial. Frost hardiness of one-year-old seedlings of 91 provenances from the Baltic region was assessed by an artificial freezing test. Variation in response to simulated frost desiccation were studied in 36 open-pollinated families in growth chambers. Genetic correlations were calculated between growth traits assessed after frost desiccation and growth traits of progenies of the same maternal clones in two field trials. Spring frost damage was strongly related to flushing stage. With increasing latitude and altitude, bud set and flushing started earlier, while height growth and occurrence of proleptic growth decreased. North of latitude 60 deg phenology varied more among populations and was more attributable to clinal latitudinal variation than south of latitude 60 deg. Three Baltic provenances exhibited clinal variation in frost hardiness over latitude and longitude. Latitude had the major influence. Subdivision of the provenances within the Baltic  More>>
Authors:
Danusevicius, Darius [1] 
  1. Swedish Univ. of Agricultural Sciences, Uppsala (Sweden). Dept. of Forest Management and Products
Publication Date:
Jun 01, 1999
Product Type:
Thesis/Dissertation
Reference Number:
SCA: 090700; PA: SWD-99:007254; EDB-99:053785; SN: 99002098402
Resource Relation:
Other Information: TH: Thesis (SkogD); PBD: 1999; Related Information: Acta Universitatis Agriculturae Sueciae. Silvestria, 103
Subject:
09 BIOMASS FUELS; BIOLOGICAL STRESS; FROST; SPRUCES; PHENOLOGY; PLANT GROWTH; FIELD TESTS; TOLERANCE; GENETIC VARIABILITY; GEOGRAPHICAL VARIATIONS; SEEDLINGS
OSTI ID:
344401
Research Organizations:
Swedish Univ. of Agricultural Sciences, Uppsala (Sweden). Faculty of Forestry
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1401-6230; Other: ISBN 91-576-5637-1; TRN: SE9907254
Submitting Site:
SWD
Size:
38 p.
Announcement Date:

Thesis/Dissertation:

Citation Formats

Danusevicius, Darius. Early genetic evaluation of growth rhythm and tolerance to frost in Picea abies (L.) Karst. Sweden: N. p., 1999. Web.
Danusevicius, Darius. Early genetic evaluation of growth rhythm and tolerance to frost in Picea abies (L.) Karst. Sweden.
Danusevicius, Darius. 1999. "Early genetic evaluation of growth rhythm and tolerance to frost in Picea abies (L.) Karst." Sweden.
@misc{etde_344401,
title = {Early genetic evaluation of growth rhythm and tolerance to frost in Picea abies (L.) Karst}
author = {Danusevicius, Darius}
abstractNote = {Main objectives of the thesis were to estimate geographical and genetic variation in growth rhythm and tolerance to frost-related stresses in seedlings of Picea abies (L.) Karst. and to assess juvenile-mature (J-M) relationships after frost desiccation simulated at the juvenile stage. Phenology and susceptibility to spring frosts of 108 Swedish and 16 eastern European provenances were studied in a short-term field trial. Frost hardiness of one-year-old seedlings of 91 provenances from the Baltic region was assessed by an artificial freezing test. Variation in response to simulated frost desiccation were studied in 36 open-pollinated families in growth chambers. Genetic correlations were calculated between growth traits assessed after frost desiccation and growth traits of progenies of the same maternal clones in two field trials. Spring frost damage was strongly related to flushing stage. With increasing latitude and altitude, bud set and flushing started earlier, while height growth and occurrence of proleptic growth decreased. North of latitude 60 deg phenology varied more among populations and was more attributable to clinal latitudinal variation than south of latitude 60 deg. Three Baltic provenances exhibited clinal variation in frost hardiness over latitude and longitude. Latitude had the major influence. Subdivision of the provenances within the Baltic states and the adjacent regions was suggested. Frost desiccation resulted in severe damage or reduced leader elongation. Families with early bud burst and bud set were less damaged than families with late bud burst and bud set. The J-M genetic correlations were weak, only 14 of 266 correlation coefficients being significant for the treated material, and 5 of 126 for the controls. Possible reasons for the weak correlations are: (1) the selective effects of the simulated and natural frost desiccation may have had different strengths, (2) the effect of frost desiccation may have been reduced by the effect of spring frosts in the field. In conclusion, the study showed, that there was a large genetic variation in all traits studied, which is promising for selection 155 refs, 8 figs}
place = {Sweden}
year = {1999}
month = {Jun}
}