Adaptability Study on the Introduction of Paeonia suffruticosa cv. 'Fengdan' in Kunming

By observing the conservation rate, growth status, flowering and fruiting rate-related biological traits of Paeonia suffruticosa cv. 'Fengdan' in 5 experimental sites in Kunming, and analyzing the variance and correlation analysis. The effects of different altitudes, soils, standes, canopy closures on growth and adaptation of 'Fengdan' in Kunming were studied. The results show that the growth of 'Fengdan' is not obvious in different altitude experiments with altitudes of 1 900−2 600 m. In the clay soil, humus soil and red soil, the difference of the annual preservation rate, flowering rate and seed setting rate of 'Fengdan' is not obvious, but the growth of 'Fengdan' fruit pod is best in humus soil. In the different stands with a canopy closure of 0.4, the difference in the growth of 'Fengdan' is not obvious. When the canopy density is less than 0.5, the effect of different canopy closure on the growth, flowering and fruiting of 'Fengdan' is also small. However, when the canopy density of each forest is greater than 0.5, the flowering, fruiting, and new planting growth of 'Fengdan' has a greater impact on the corresponding index of 'Fengdan' than that of the forest. The growth of 'Fengdan' is negatively correlated with canopy closure. Therefore, planting in Kunming with an altitude of 1 900−2 600 m has certain adaptability. It can be flowering and fruiting in cohesive soil, humus soil and red soil. The plant light ecology is relatively wide, and proper shading is beneficial to plant growth.