Growth and Change of Peony

The change of peony annual cycle can be divided into growth and development period and relative dormancy period according to its activity law. Taking Peony in Central Plains as an example, the growth and development period is from February in spring to the end of 65438+ 10. Relative dormancy refers to the period from defoliation to the germination of scale buds in the following spring. In fact, even if you enter the hibernation period. The flower bud differentiation of Paeonia suffruticosa has not stopped, but its internal physiology is still differentiating.

Peony in Central Plains divides the growth and development period of peony into 12 periods.

Germination period: in mid-February, when the temperature reaches about 4℃, the scale buds swell and shine after water absorption, and then they gradually crack and expose the bud tips, commonly known as' mosquito mouth'.

Germination stage: from the end of February to the beginning of March, the temperature reaches 6~8℃, and the tip of the scale bud splits. You can see the terminal bud and half bud of Youlei. Commonly known as' wasp wings'.

Bud jumping stage: in mid-March, the temperature reached about 65438 00℃, the flower buds grew into buds, and the leaf order in diameter basically formed. The diameter of buds is generally about 65438±0cm, and the length of young branches is about 3cm.