Journal of Hunan Ecological Science

【Objective】The purpose of this study is to explore the hybridization compatibility between the Lilium lancifolium and different lily species and varieties in order to produce the hybrid offspring with excellent traits. 【Method】Lilium lancifolium Thunb. was remotely bred with 7 lily species and varieties. First, the pollen vitality of the paternal lily was measured by the pollen liquid medium method, and the fruit expansion rate of the hybrid combination was counted after crossing, and the hybrid capsule was ob- tained by embryo rescue to obtain hybrid seedlings. 【Result】The results showed that 7 kinds of lily pow- der germinated well in No. 9 germination solution (150 g / L sucrose, 200 mg / L boric acid, 75 mg / L cal- cium chloride), among which the pollen germination rate of Lilium brownii var. viridulum Baker and ‘Strawberry Event’ was higher than that of other parent varieties, and the pollen vitality was better. The hybrid fruit expansion rate of distance hybridization between Lilium lancifolium Thunb. and Asiatic hy- brids was higher, among which the hybridization with ‘Strawberry Event’ had the highest rate of fruit en- largement with 14. 7% , and only this combination successfully obtained two hybrid offspring. 【Conclu- sion】This study shows that the hybridization compatibility between Lilium lancifolium Thunb. and Asiatic lily hybrid line is better, which provides technical support for distant hybrid breeding in the future.

ornamental horticulture; Lilium lancifolium Thunb. ; distal hybridization; hybridization compatibility; embryo rescue