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Articles containing the keyword 'low-temperature exotherm'

Category : Research article

article id 10620, category Research article
Tapani Repo, Virva Volanen, Pertti Pulkkinen. (2022). No difference in the maximum frost hardiness of different pedunculate oak populations in Finland. Silva Fennica vol. 56 no. 2 article id 10620. https://doi.org/10.14214/sf.10620
Keywords: climate change; differential thermal analysis; electrolyte leakage; low-temperature exotherm; species distribution; visual damage scoring
Highlights: Four pedunculate oak populations were compared for their maximum frost hardiness (FHmax) at two sampling times in midwinter; Based on the initiation of the low temperature exotherm (LTE), FHmax was an average of –41 °C; Based on the relative electrolyte leakage method, FHmax was an average of –46 °C and –41 °C in the first and second sampling time respectively; No significant differences were observed among the populations; Within-population variation in the LTE was high, providing potential for breeding; In extreme winters, FHmax may be critical for the growth and survival of oak in central and northern Finland.
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