Freezing stress damage and growth viability in Vaccinium macrocarpon Ait. bud structures.

ABSTRACT: After a freezing event, it can be challenging to extrapolate levels of freezing damage to plant growth viability based on the presence or absence of symptoms in specific bud tissues. This study investigated the relationship between freezing damage in terminal buds during ecodormancy and their viability during the subsequent growing season. We identified the bud structure that best explained this relationship, and developed a model to explain the changes in bud cold hardiness. Vertical shoots (uprights) of Vaccinium macrocarpon Ait. were sampled in central Wisconsin during Spring of 2018 and 2019. Sets of uprights with terminal buds were subjected to controlled freezing tests, followed by either visual freeze damage evaluation or assessment of shoot viability by growth assays. We determined

SUBMITTER: Villouta C 

PROVIDER: S-EPMC8361938 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature