The main factors affecting the flowering phenology of the drug:
(1) Temperature: In the same area, the morning and evening of the peony flowering period are closely related to the spring temperature changes. Temperature can affect the entire flowering process. Spring and cold, the flowering period can vary from 4 to 5 days to 10 to 20 days.
(2) Moisture and rainfall: Water and rainfall have little effect on the flowering period. Full irrigation or rain before flowering will help the flowering of the peony, the flowers are large and the flowers are beautiful; but if the rainfall is met, the flowers are damaged. Will fall early. If the soil moisture content before the flower is low, the flowers will be made smaller, the flowers are not bright, and the flowering period is shortened.
(3) Altitude from altitude: Altitude can affect changes in temperature, light and humidity, thus affecting flowering. In general, as the altitude increases, the flowering period is delayed. For example, the peony of Luoyang ended on the flowering period on May 14th, and it was just in the vicinity of Baiyun Mountain in Man County. In Pengzhou, Sichuan, the medicinal period of the peony was convergent, and the nearby Danjing Mountain was near the beginning. The sea resources of the cultivated land can be highly intertwined, and the court is long.
(4) Illumination: Light is often accompanied by temperature and has a significant impact on plant growth and flowering. Insufficient illumination before flowering will affect the color of the flower, making it less intense, and the flowering period will be intense, accompanied by an increase in temperature, which will shorten the flowering period or burn the flower. Therefore, taking a awning at the flowering period will prolong the flowering period of the peony.
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