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자료유형
학술저널
저자정보
저널정보
한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.50 No.3
발행연도
2009.6
수록면
217 - 223 (7page)

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Restoration of pollen germination ability using high temperatures was investigated in Oriental-Trumpet (OT) and Longiflorum-Asiatic (LA) triploid lily hybrids. The flower bud size relation to the pollen development stage was determined through microscopic observation of flower buds from plants grown in a growth chamber at 20℃. Pollen was collected from plants treated with 30℃ for 7 days and lowered to 20℃ until flowering. A sequence of events in meiosis was found in 20-32 ㎜ flower buds of ‘Vinadelmar’, 31-39 ㎜ of ‘Ventimiglia’, 32-38 ㎜ of ‘Manissa’, 32-40 ㎜ of ‘Conca d’Or’, and 14-22 ㎜ of ‘Ballroom’. Individual flowers showed considerable differences in developmental stages. Increased germination was shown as 8.4±1.2% in flower buds of 17-35 ㎜ in ‘Ventimiglia’; 2.7±1.0%, 21-35 ㎜ in ‘Manissa’; 4.6±1.3%, 21-35 ㎜ in ‘Conca d’Or’, respectively. Pollen was used in crossings with L. × formolongi, trumpet hybrids, Oriental hybrids, and diploid OT hybrids; a few plants were obtained but they died at the early stage of seedling development. These results demonstrate that high-temperature treatment is a promising method to restore pollen fertility. The flower bud is expected to have anthers in meiosis during high-temperature treatment; the appropriate flower bud size differed slightly depending on the genotype.

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Abstract
Introduction
Materials and Methods
Results
Discussion
Literature Cited

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