2021
DOI: 10.1101/2021.04.26.441354
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Woody species do not differ in dormancy progression: differences in time to budbreak due to forcing and cold hardiness

Abstract: Budbreak is one of the most observed and studied phenological phases in perennial plants. Two dimensions of exposure to temperature are generally used to model budbreak: accumulation of time spent at low temperatures (chilling); and accumulation of heat units (forcing). These two effects have a well-established negative correlation: the more chilling, the less forcing required for budbreak. Furthermore, temperate plant species are assumed to vary in amount of chilling required to complete endodormancy and begi… Show more

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Cited by 2 publications
(1 citation statement)
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“…The strongest such response was from the native Acer rubrum L., with a steep decline in days to bud burst with increasing chill hours, while a much weaker response was observed by the exotic Rhamnus cathartica L. Leaf emergence of walnut (Juglans nigra L.) is strongly tied to accumulation of winter chilling hours, with delays in both flower and leaf emergence resulting from milder winters (Luedeling et al 2013). As a native to our study areas, C. canadensis is similarly well-adapted to colder winter temperatures as exhibited by the negative correlation between MTB and chill accumulation (Kovaleski 2021).…”
Section: Resultsmentioning
confidence: 75%
“…The strongest such response was from the native Acer rubrum L., with a steep decline in days to bud burst with increasing chill hours, while a much weaker response was observed by the exotic Rhamnus cathartica L. Leaf emergence of walnut (Juglans nigra L.) is strongly tied to accumulation of winter chilling hours, with delays in both flower and leaf emergence resulting from milder winters (Luedeling et al 2013). As a native to our study areas, C. canadensis is similarly well-adapted to colder winter temperatures as exhibited by the negative correlation between MTB and chill accumulation (Kovaleski 2021).…”
Section: Resultsmentioning
confidence: 75%