ABA and Not Chilling Reduces Heat Requirement to Force Cherry Blossom after Endodormancy Release.

ABSTRACT: Models used to predict the onset of fruit tree blossom under changed climate conditions should be physiologically based as much as possible. Pure optimized phenology models carry the risk of unrealistic predictions due to a misinterpretation of metabolic processes. This was the motivation determining the relevant phases for chill and heat accumulation, which induces cherry blossom (cv. Summit). Investigations are based on 8 years of observational and analytical data, as well as on controlled experiments. For 'Summit' buds, to be released from endodormancy, 43 chill portions from 1 September are necessary. After endodormancy release (t₁), on average on 30 November, no further chilling is required, because no correlation between chill accumulation during ecodormancy and the subseq

SUBMITTER: Chmielewski FM 

PROVIDER: S-EPMC9370221 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature