| Dormancy Characteristics of Malus ‘Snowdrift’ and Effects of Spraying 6-benzyladenine on Its Germination and Flowering in Long-day Treatment |
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| 摘 要： | Objective] The dormancy characteristics of Malus ‘Snowdrift’ in long-day treatment were studied, and 6-BA was used to break the dormancy, with the aim to achieve the purpose of flowering in autumn. Method] The new shoots of ‘Snowdrift’ in long-day treatment were conducted with hydroponics to investigate their dormancy time. And cytokinin 6-benzyladenine(6-BA)was used to treat the dormant shoots, to investigate the budding, flowering and flower bud differentiation. Result] The shoots in long-day treatment entered endodormancy after August 7~(th) and the shoots in the natural daylight entered endodormancy before July 18~(th). In long-day treatment, 116 buds, 198 flowers were observed after 6-BA spraying. Conclusion] The optimum concentration of 6-BA was 300 mg/L. And the flower bud differentiation of ‘Snowdrift’ in long-day treatment was faster than those in natural daylight after 6-BA spraying.
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Dormancy Characteristics of Malus 'Snowdrift'and Effects of Spraying 6-benzyladenine on Its Germination and Flowering in Long-day Treatment |
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| Authors: | Jiayi LIU Ying WANG Lin WU Sadao KOMORI Manabu WATANABE |
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| Institution: | 1. College of Horticulture, Jilin Agriculture University, Changchun 136000, China;2. Iwate University, Morioka, Iwate 020-8550, Japan |
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| Abstract: | Objective] The dormancy characteristics of Malus 'Snowdrift' in long-day treatment were studied, and 6-BA was used to break the dormancy, with the aim to achieve the purpose of flowering in autumn. Method] The new shoots of 'Snowdrift' in long-day treatment were conducted with hydroponics to investigate their dormancy time. And cytokinin 6-benzyladenine (6-BA)was used to treat the dormant shoots, to investigate the budding, flowering and flower bud differentiation. Result] The shoots in long-day treatment entered endodormancy after August 7th and the shoots in the natural daylight entered endodormancy before July 18th. In long-day treatment, 116 buds, 198 flowers were observed after 6-BA spraying. Conclusion] The optimum concentration of 6-BA was 300 mg/L. And the flower bud differentiation of 'Snowdrift' in long-day treatment was faster than those in natural daylight after 6-BA spraying. |
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| Keywords: | Malus 'Snowdrift' Long-day treatment Dormancy 6-benzyladenine (6-BA) |
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