Study: Exmaining the flowering structures of peony under different conditions

Tree peony ( Paeonia suffruticosa Andrews ) is a woodsy ornamental plant uprise from China , and beloved by the great unwashed worldwide . Non - structural carbohydrates ( NSCs ) diddle a crucial use in regulating the flowering quality of tree peonies in both field and potted condition . However , the issue of NSCs accumulation and assignation in various organ during the vegetative growth stage on the flowering calibre of tree peony under force culture remains unclear .

Two - year - erstwhile grafted seedling of tree peony cv . ' Luoyanghong ' was subject to immaterial treatment to investigate the role of NSCs accumulation in plant ' developmental operation . We measured leaf photosynthetic capacity , NSCs collection in the organs of seedling , observed key decorative characteristic of flowering quality under draw acculturation precondition , and evaluated the quality of seedlings and flower using the seedling indicant ( SI ) and flowering index ( FI ) , respectively .

There was a significant positive correlation between folio photosynthetic capacity and NSCs accruement in both the whole works and roots of potted tree paeony . Roots were identify as the primary organs for NSCs accumulation in potted Sir Herbert Beerbohm Tree paeony . Sufficient NSCs accruement in the plant , especially in the roots during the defoliation period , was essential not only for enhancing the seedling quality of potted tree peonies but also for improving the blossom quality under force culture conditions . Both the seedling forefinger ( SI ) and flower index ( FI ) demonstrate a meaning dose - response with increasing root NSCs accumulation at defoliation .

The T3 mathematical group , which involved slim root pruning ( by 25 % ) , combine with a in high spirits - absorption rooting agent ( 750 mg·L−1 ) and Metarhizium anisopliae ( 20 million U·mL−1 ) , result in the highest photosynthetic capacity , SI , FI and NSCs accretion condition ( NSCAR ) , making it the optimum treatment compounding . ( 4 ) This finding indicates that increasing NSCs accumulation in the roots of potted tree peonies is a crucial biological foundation for produce high - quality potted flowers under thrust refinement condition , which allow for new insight into the importance of NSCs in tree peony flowering and may improve the product applied science for high - quality potted tree peony flowers under forcing acculturation conditions .

Shi , Shuaiying & Shi , Tian & Zhou , Shuang & Gao , Shuangcheng & Zhao , Yuan & Shi , Guoan . ( 2024 ) . Non - Structural Carbohydrates Accumulation in Seedlings Improved Flowering Quality of Tree Peony under Forcing Culture Conditions , with root play a Crucial Role . Plants . 13 . 2837 . DOI:10.3390 / plants13202837 .

Source : ResearchGate