Abstract
Crosses between Lilium × formolongi 'White Lancer' and four Asian trumpet species (L. centifolium, L. sargentiae, L. wallichianum, and L. regale 'Album') were conducted using the cut-style pollination method. In all cross combinations, more hybrids were produced by ovary-ovule culture than by the embryo rescue method. PCR-RFLP analysis of rDNA was applied successfully to determine the hybridity of the resulting progenies. These hybrids had pure white trumpet flowers with low pollen fertility.
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