Research Advances on Flower Bud Differentiation and Flowering Regulation of Paeonia lactiflora
Paeonia lactiflora Pall.is a perennial herbaceous flower belonging to the goldenseal family.It is famous for high ornamental and medicinal value.However,its utilization is limited by its short and concentrated flowering period,easiness to wilt which leads to reduced flower quality.Studies have shown that suitable temperature,light,water,nutrition,and plant hormones help promote flower bud differentiation and break dormancy.In terms of forcing and retarding cultivation,the flowering period of herbaceous peony can be controlled by choosing early and late flowering varieties,temperature regulation and exogenous substances.The paper reviews the physiological mechanism of flower bud differentiation and dormancy of herbaceous peony,and the ways of flower regulation such as forcing and retarding cultivation,aiming at improving the cultivation technology and providing theory basis for the regulation of flowering in herbaceous peony.
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