^(60)Co-γ对高粱种子萌发及幼苗形态建成调控效应研究  

Study on the Regulatory Effect of^(60)Co-γon Sorghum Seed Germination and Seedling Morphogenesis

作　　者：陶烨[1] 张飞[2] 崔智博 TAO Ye;ZHANG Fei;CUI Zhi-bo(Institute of Food and Processing,Liaoning Academy of Agricultural Sciences,Shenyang,Liaoning110161;Sorghum Research Institute,Liaoning Academy of Agricultural Sciences,Shenyang,Liaoning110161)

机构地区：[1]辽宁省农业科学院食品与加工研究所,辽宁沈阳110161 [2]辽宁省农业科学院高粱研究所,辽宁沈阳110161

出　　处：《辽宁农业科学》2022年第2期27-30,共4页Liaoning Agricultural Sciences

基　　金：辽宁省自然科学基金项目(2019-MS-197);辽宁省农业科学院农业种质资源发掘、创制与利用项目(2021GR2929)。

摘　　要：以高粱干种子为试验材料,研究^(60)Co-γ射线对高粱种子萌发及幼苗形态指标的影响,并对供试材料适宜诱变剂量进行预测。设置100、200、300、400和500 Gy剂量射线辐照,测定分析种子发芽率、发芽指数、活力指数、幼苗生长速度及形态指标。结果表明:高粱种子萌发参数及幼苗形态指标与辐照剂量间存在负相关关系,辐照剂量越大,种子发芽率、发芽指数、活力指数、幼苗生长速度越低,辐照剂量超过300 Gy时,各项参数指标快速降低,均在500 Gy时达到最小值,初步确定供试材料^(60)Co-γ射线辐照敏感剂量为300 Gy。In this study,dry seeds of sorghum were used as experimental materials to study the effects of^(60)Co-γrays on sorghum seed germination and seedling morphology,and to predict the appropriate mutagenic dose of the tested materials.Set 100,200,300,400 and 500 Gy doses of ray irradiation to determine and analyze the seed germination rate,germination index,vigor index,seedling growth rate and morphological indicators.The results showed that there was a negative correlation between sorghum seed germination parameters and seedling morphology indexes and irradiation dose.All parameters decreased rapidly and reached the minimum value at 500 Gy.The^(60)Co-γray irradiation sensitive dose of the tested material was initially determined to be 300 Gy.

关 键 词：高粱 ^(60)Co-γ射线 种子萌发 

分 类 号：S514.01[农业科学—作物学]