Dormancy Characteristics of Malus ‘Snowdrift’ and Effects of Spraying 6-benzyladenine on Its Germination and Flowering in Long-day Treatment  

作　　者：Jiayi LIU Ying WANG Lin WU Sadao KOMORI Manabu WATANABE 

机构地区：[1]College of Horticulture, Jilin Agriculture University, Changchun 136000, China [2]Iwate University, Morioka, Iwate 020-8550, Japan

出　　处：《Agricultural Science & Technology》2017年第4期570-574,共5页农业科学与技术（英文版）

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.[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 concentra- tion of 6-BA was 300 mg/L. And the flower bud differentiation of ‘Snowdrift＇ in long-day treatment was faster than those in nat- ural daylight after 6-BA spraying.

关 键 词：Malus ‘Snowdrift’ Long-day treatment Dormancy 6-benzyladenine(6-BA) 

分 类 号：Q945[生物学—植物学]