Selfing,Hybridization and Open Pollination of Several Peony Varieties in Zhongyuan Area
To comprehensively understand the flowering,pollination and fruiting characteristics of peony in Zhongyuan area,and to analyze its breeding and utilization value,providing a reference for the cultivation of new varieties of peonies.In this experiment,11 peony varieties from Zhongyuan area,including'Manyuanchunguang','Hongbanbai'and'Tingtingyuli',were selected as test materials.The fruiting conditions were investigated using various methods such as self-crossing,hybridization,and open pollination.The results showed that self-crossing of varieties in Zhongyuan area had a small amount of fruiting,and the fruit-setting percentage of cross-flowering was higher than self-flowering,the setting percentage of self pollination during selfing were 0.31 grain/flower,and the setting percentage of cross pollination of selfing were 0.76 grain/flower.Under different pollination methods,the setting percentage(9.4 grain/flower)and the fruit setting rate(90%)of artificial hybridization were higher than that of open pollination and self-crossing,the average dry weight of seeds were 0.31～0.36 g/grain,and the largest dry weight of seeds(0.5875g/grain)of the hybrid combination was'Caiju×Hudiefeiwu'.It is concluded that cross-pollination is the main method of pollination for peonies in Zhongyuan area,and arti-ficial directional hybridization can effectively improve the setting percentage.
Peony varieties in Zhongyuan areaSelfingHybridizationOpen pollination
NETL
NSTL
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