LIU Jiayi,WANG Ying,WU Lin,et al.Dormancy Characteristics of ‘Snowdrift’ and Effects of Spraying 6-BA on Its Germination in Long-day Treatment[J].Northern Horticulture,2017,41(21):109-114.[doi:10.11937/bfyy.20170268]
长日照处理下‘雪球’海棠休眠特性和喷施6-BA对其萌芽及开花的影响
- Title:
- Dormancy Characteristics of ‘Snowdrift’ and Effects of Spraying 6-BA on Its Germination in Long-day Treatment
- 关键词:
- ‘雪球’海棠; 长日照照处理; 休眠期; 6-苄基腺嘌呤(6-BA)
- Keywords:
- Malus ‘Snowdrift’ ; long-day treatment; dormancy; 6-BA
- 文献标志码:
- A
- 摘要:
- 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。
- Abstract:
- The dormancy characteristics of Malus ‘Snowdrift’ in 15 hours 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.The results showed that the the shoots in long-day treatment entered endodormancy after August 7th and the shoots in the natural daylight should have entered endodormancy before July 18th.116 buds,198 flowers were observed after 6-BA spraying in long-day treatment.The optimum concentration of 6-BA was 300 mg?L-1.And the flower bud differentiation of ‘Snowdrift’ in long-day treatment was faster than those in natural daylight after spraying 6-BA.
参考文献/References:
[1]LANG G A,EARLY J D,MARTIN G C,et al.Endo-,para-,and ecodormancy:Physiological terminology and classification for dormancy research[J].HortScience,1987(23):371-377.
备注/Memo
第一作者简介:刘嘉仪(1991-),女,硕士研究生,研究方向为果树育种学。E-mail:liujiayi3152@sina.com.