GA₃ is superior to GA₄ in promoting bud endodormancy release in tree peony (Paeonia suffruticosa) and their potential working mechanism.

ABSTRACT:

Background

Sufficient low temperature accumulation is the key strategy to break bud dormancy and promote subsequent flowering in tree peony anti-season culturing production. Exogenous gibberellins (GAs) could partially replace chilling to accelerate dormancy release, and different kinds of GAs showed inconsistent effects in various plants. To understand the effects of exogenous GA₃ and GA₄ on dormancy release and subsequent growth, the morphological changes were observed after exogenous GAs applications, the differentially expressed genes (DEGs) were identified, and the contents of endogenous phytohormones, starch and sugar were measured, respectively.

Results

Morphological observation and photosynthesis measurements indicated that both GA₃ a

SUBMITTER: Yuxi Z 

PROVIDER: S-EPMC8256580 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature