Abstract
This study was carried out to develop the efficient methods for the subsequent progeny of intersectional hybrid between Oriental and Asiatic lily hybrids. The pollen fertility and germination ability of 3 different allotetraploids (OAOA) after somatic chromosome doubling was ranged from 0 to 80 percent on artificial pollen germination medium. The number of BC progeny using allotetraploid of F OA-hybrid as male and female parent was different. The efficiency of BC progeny production was increased when FOA-hybrids was used as male rather than as female parent. And in back crosses of F OA-hybrids with the Asiatic and Oriental hybrids, Asiatic hybrids showed higher efficiency on BC progeny production. The ploidy level between 2x or 4x Asiatic hybrid and allotetraploid F OA-hybrid was determined and showed higher progeny production in 2x-4x crosses rather than 4x-4x.
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