Method for identifying distant hybridization affinity of lilium brownii

The invention discloses a method for identifying distant hybridization affinity of lilium brownii, and belongs to the technical field of distant hybridization affinity identification. Fertilization of male and female gametes of plants and development of hybrid embryos can stimulate ovary expansion. According to the method disclosed by the invention, the lilium brownie is subjected to distant hybridization, the distant hybridization affinity of the lilium brownie is identified by comparing the ovary expansion rate and the false expansion rate at different development times, and the affinity of hybridized parents is higher when the ovary expansion rate is higher, the false expansion rate is lower and the abortion time is later. According to the method, the distant hybridization affinity of the lilium brownie is identified by jointly using the ovary expansion rate and the false expansion rate, so that the defect that only ovary expansion is considered but the actual germination condition of embryos is not consid