Discrimination of the Genomes in BC1 Progeny of Asiatic Lfly and Oriental LilyUsing GISH Discrimination of the Genomes in BC1 Progeny of Asiatic Lfly and Oriental LilyUsing GISH Meiosis Observation of Pollen Mother Cells and Determination of Pollen Viability of Tetraploid Asiatic Lily Cultivars Studies on Ploidy Levels,Pollen Fertility and Interploid Hybridization of Asiatic Lilies Studies on Ploidy Levels,Pollen Fertility and Interploid Hybridization of Asiatic Lilies THE CHROMOSOME ABERRATION OF THE ASIATIC LILY(M_1)AFTER IRRADIATION ON BULBS