YANG Jing,XIE Li,ZENG Ruizhen,et al.Influencing on Factors of Proliferation and Differentiation of Rhizome and Plantlet Growth in Cymbidium ‘XiaoFeng’[J].Northern Horticulture,2016,40(02):105-109.[doi:10.11937/bfyy.201602028]
影响‘小凤兰’根状茎增殖、分化和壮苗的因素研究
- Title:
- Influencing on Factors of Proliferation and Differentiation of Rhizome and Plantlet Growth in Cymbidium ‘XiaoFeng’
- Keywords:
- Cymbidium; rhizome; proliferation; differentiation; seedling strength
- 文献标志码:
- A
- 摘要:
- 以‘小凤兰’根状茎为试材,研究了影响‘小凤兰’根状茎增殖、分化、生根壮苗的因素。结果表明:MS基本培养基、蔗糖30 g/L、6-BA 2.0 mg/L+NAA 0.5 mg/L、活性炭0.5 g/L有利于根状茎增殖,而添加20%椰汁和番茄汁40 g/L会抑制根状茎增殖。1/2MS基本培养基、蔗糖30 g/L、6-BA 2.0 mg/L+NAA 0.2 mg/L、20%椰汁、1 000 lx光照强度有利于根状茎分化,不加活性炭有利于芽分化,但抑制根分化,而添加活性炭则抑制芽分化,促进苗分化。添加土豆泥60 g/L显著促进试管苗生长,3~4 cm高的苗在培养基1/2MS+6-BA 0.1 mg/L+NAA 0.5 mg/L+蔗糖20 g/L+土豆泥60 g/L+卡拉粉8 g/L+活性炭0.5 g/L中培养40 d即可移栽。
- Abstract:
- Taking Cymbidium ‘XiaoFeng’ as test material,the factors influencing on proliferation and differentiation of rhizomes and seedling strengthening were studied on Cymbidium ‘XiaoFeng’.The results showed that MS basic medium,sucrose 30 g/L,6-BA 2.0 mg/L and NAA 0.5 mg/L,activated carbon 0.5 g/L were conducive to proliferation of the rhizomes,while 20% coconut juice and tomato juice 40 g/L inhibited proliferation of the rhizomes.1/2MS basic medium,sucrose 30 g/L,6-BA 2.0 mg/L and NAA 0.2 mg/L,20% coconut juice,1 000 lx light intensity favored differentiation of the rhizomes.Activated carbon had significant effect on differentiation of the rhizomes,medium without activated carbon promoted bud differentiation and inhibited root differentiation,on the contrary,medium with activated carbon inhibited bud differentiation and promoted seedling differentiation.Mashed potato 60 g/L significantly promoted plantlet growth,and seedlings with 3-4 cm height were suitable for transferring after cultured on 1/2MS+6-BA 0.1 mg/L+NAA 0.5 mg/L+sugar 20 g/L+patato 60 g/L+activated carbon 0.5 g/L for 40 days.
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备注/Memo
第一作者简介:杨靖(1991-),男,云南曲靖人,硕士研究生,研究方向为花卉遗传育种与生物技术。E-mail:1349643559@qq.com. 责任作者:张志胜(1965-),男,江苏睢宁人,博士,教授,现主要从事花卉遗传育种及植物细胞工程等研究工作。E-mail:zszhang@scau.edu.cn. 基金项目:广东省部产学研资助项目(2012B091100480);国家星火计划资助项目(2014GA780053);广州市农业局资助项目(1310998)。