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*1001 $aSkrøppa, Tore$4aut$_131927100
*24510$aWeak relationships between injuries in freezing tests and performance in short-term and field trials of Norway spruce families from Stange Seed Orchard
*264 1$aÅs$bNIBIO$c2023
*300  $a14
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*4900 $aNIBIO Rapport$v9(108)2023$x24641162
*520  $aArtificial freezing tests were performed on seedlings from Norway spruce families at the end of the first growing season. Similar tests were made on twigs collected from trees in a progeny test at the end of growing season nine. The 26 families in the early test were included in the short-term progeny test with 100 full-sib families from a 10 x 10 factorial cross. All families were also planted in seven field trials in Norway, Sweden and Finland, from which data on mortality, tree heights and stem damage at age 10 years are available. Significant difference was found among families for freezing test injuries on whole intact seedlings at the end of the first growing season and for lethal temperature of needles on detached twigs collected at the end of growing season nine. However, no relationships were found between the freezing test scores of families in the two types of tests or few between these scores and the traits measured in the short-term and field trials. The results show that frost hardiness testing of families at a young age, grown under artificial temperature and light conditions in nursery, is a weak predictor of their performance under natural conditions in field at older ages.
*653 6$areport$_128546700
*7001 $aJohnsen, Øystein$4aut$_129483600
*7001 $aSteffenrem, Arne$4aut$_131927200
*7102 $aDet norske skogfrøverk$4cli$_150813000
*7102 $aEU-Project B4EST$4cli$_244870300
*7102 $aProject FORGENRES$4cli$_244870400
*85640$uhttps://urn.nb.no/URN:NBN:no-nb_pliktmonografi_000025296$3Fulltekst$yNettbiblioteket$zDigital representasjon
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*999  $aoai:nb.bibsys.no:999920434090802202$b2023-09-16T02:41:50Z$z999920434090802202
^