摘要
以蝴蝶兰品种郑农鸿运的2.5寸(1寸≈3.33 cm)中苗和3.5寸成熟苗为研究对象,进行不同剂量的辐射处理,探究^(60)Co-γ射线辐照处理对不同株龄蝴蝶兰生长的影响。结果表明:(1)^(60)Co-γ辐射处理影响蝴蝶兰植株的生长发育,不同株龄的蝴蝶兰对辐射的敏感度不同,2.5寸郑农鸿运中苗对^(60)Co-γ射线更敏感;(2)各剂量辐射处理均能增加蝴蝶兰叶片厚度和叶绿素含量;(3)低剂量的^(60)Co-γ辐射能够诱导花梗伸长、花朵增大,高剂量的^(60)Co-γ辐射抑制了蝴蝶兰开花;(4)10Gy剂量的^(60)Co-γ辐射处理在植株生长和开花方面更具优势,可作为蝴蝶兰辐射诱变的推荐剂量。
To investigate the effects of ^(60)Co-γray irradiation on the growth of Phalaenopsis at different ages,2.5-inch(1 inch≈3.33 cm)medium-grown seedlings and 3.5-inch mature seedlings of the Phalaenopsis cultivar‘Zhengnonghongyun’were treated with various doses of ^(60)Co-γray irradiation.The results revealed that(1)^(60)Co-γradiation treatment affected the growth and development of Phalaenopsis plants.The sensitivity to radiation was different at different ages,and the 2.5-inch“Zhengnong Hongyun”seedlings were more sensitive to ^(60)Co-γrays.(2)All radiation doses could increase the leaf thickness and chlorophyll content of Phalaenopsis.(3)A low dose of ^(60)Co-γradiation can induce pedicel elongation and flower enlargement,whereas a high dose of ^(60)Co-γradiation can inhibit Phalaenopsis flowering.(4)A 10 Gy dose of ^(60)Co-γradiation treatment has more advantages in plant growth and flowering and can be used as the recommended dose for radiation mutagenesis in Phalaenopsis orchids.
作者
王瑞华
蒋拴丽
杨书才
冯建
赵玉安
王俊
WANG Ruihua;JIANG Shuanli;YANG Shucai;FENG Jian;ZHAO Yu’an;WANG Jun(Zhengzhou Institute of Agricultural Science and Technology,Zhengzhou,Henan 450005)
出处
《热带农业科学》
2024年第10期67-71,共5页
Chinese Journal of Tropical Agriculture
基金
河南省重点研发与推广专项(科技攻关)(No.232102111101)
河南省林木种质资源建设项目(豫财环资[2023]60号,豫财环资[2024]47号)。
