＇Xuanjing＇is a new hemerocallis cultivar with full double edge.The average height of plants is 87.5 cm.It has large and thick leaves,single golden flower and strong growth potential.The petal number range from 8 to 12.It＇s flower diameter is 10.2-11.9 cm,flowering period from July to August.The cultivar has strong resistance and high ornamental value.It is with low seed-setting.

The effects of the different concentrations of sucrose,calcium and boron on pollen germination and pollen tube growth of Prunus triloba var.plena Dipp.and Prunus triloba var.simplex were investigated.The results showed that 5%~10% of sucrose was not conducive to pollen germination and pollen tube growth,while the concentrations at 15%~30% could improve.The optimum concentration of sucrose was 25%,both average pollen germination and pollen tube length for 38.72% and 489.6 μm.0.01% to 0.07% of exogenous calcium can significantly promote the pollen germination and pollen tube growth of Prunus triloba in vitro,0.03% of the largest.0.01% of boron on Prunus triloba var.simplex and 0.01% to 0.03% of boron on Prunus triloba var.plena Dipp.pollen germination and pollen tube growth of a significant role in promoting,suggested that the Prunus triloba var.plena Dipp.more needs boron than Prunus triloba var.simplex.