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以‘雪球’海棠为试材,采用水培法研究了其在长日照处理下的休眠特性,并采用不同浓度细胞分裂素6-苄基腺嘌呤(6-BA)处理处于条件休眠的新梢,调查其花芽分化进程,以达到秋季开花的目的。结果表明:长日照处理下新梢的顶芽进入自发休眠时间在8月7日之后,而自然日照下树体自发休眠应发生在7月18日之前;长日照处理下喷施6-BA后共观察到116处萌芽,50处开花,开花数198朵。其中6-BA最适浓度为300 mg·L-1;花芽分化进程调查喷施6-BA对花芽分化有促进作用,喷施6-BA后长日照处理下‘雪球’海棠花芽分化进程快于自然光照。
The ’Snowball’ Begonia was used as test material to study its dormancy characteristics under long-day treatment with hydroponics. The treatment of 6-benzyladenine (6-BA) with different concentrations of cytokinin Shoot, investigate the process of flower bud differentiation in order to achieve the purpose of flowering in autumn. The results showed that the top shoots of shoots under long-day treatment went into spontaneous dormancy time after August 7, while spontaneous dormancy of tree body occurred under natural sunlight before July 18. After long-day treatment, 6-BA A total of 116 buds were observed, 50 flowering and 198 flowering. The optimum concentration of 6-BA was 300 mg · L-1. The flower bud differentiation process was investigated by spraying 6-BA on flower bud differentiation. The process of flower bud differentiation of ’Snowball’ In natural light.