Plasticity and stability of hybrid aspen clones in 14 field trials over Sweden, Finland and north-west Russia
Autorzy
-
Aleksey Fedorkov
Institute of Biology, Komi Science Centre, Russian Academy of Sciences, Kommunisticheskaya 28, Syktyvkar 167982, Russia,
e-mail: fedorkov@ib.komisc.ru -
Lars-Göran Stener
The Forestry Research Institute of Sweden (Skogforsk), Ekebo 2250, SI-26890 Svalöv, Sweden,
e-mail: Lars-Goran.Stener@skogforsk.se -
Pertti Pulkkinen
Natural Resources Institute Finland (Luke), Latokartanonkaari 9, FI-00790 Helsinki, Finland,
e-mail: pertti.pulkkinen@luke.fi
Abstract
The study aimed at estimating the genotype × environment (G × E) interaction, stability and plasticity parameters for height growth and survival of hybrid aspen (Populus tremula L. × Populus tremuloides Michx.) clones. A set of 17 hybrid aspen clones were studied at age four in 11 field trials (series 1) and a set of 12 clones were studied at age 12 in three field trials (series 2) in Sweden, Finland and north-west Russia. There was an intermediate and significant correlation between height ranks at four and 12 years, showing modest G × E interaction for tree height. The corresponding correlation for survival was weak and insignificant, indicating a stronger G × E interaction than for height. The stability parameter (S) for height showed large differences among clones. The plasticity index (PI) values for height ranged from 0.6 to 0.8 among clones, demonstrating high levels of phenotypic plasticity.
Keywords
| DOI | 10.2478/ffp-2021-0018 |
|---|---|
| Source | Folia Forestalia Polonica, Series A – Forestry |
| Print ISSN | 0071-6677 |
| Online ISSN |
2199-5907 |
| Type of article |
short communication |
| Original title |
Plasticity and stability of hybrid aspen clones in 14 field trials over Sweden, Finland and north-west Russia |
| Publisher | The Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sekocin Stary |
| Date | 08/06/2021 |
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