耕作与栽培2025，Vol.45Issue(6)：18-23,6.
60Co-γ射线辐射对贵苏1号种子萌发及生长的影响
Effects of 60Co-γ Ray Irradiation on Seed Germination and Growth of Guisu No.1
摘要
Abstract
To study the mutagenesis effect of 60Co-γ radiation on Perilla.Guisu No.1 was treated with 9 different doses of 60Co-γ radiation(0～400 Gy)to analyze the seed germination,seedling emergence,plant growth after transplanting,agronomic and quality traits of the mutant plants.The results showed that at 50 Gy,the seed germination rate,germination index,germina-tion potential,germination rate,emergence rate,seedling height,taproot length,fresh weight and vigor index of Perilla were in-creased,but there was no significant difference.With the increase of radiation dose,all the 9 indexes showed a downward trend,and the difference was significant compared with the control.According to the regression equation,the semi-lethal dose(LD50)and theoretical critical dose(LD40)of Guisu No.1 were calculated to be 284.89 Gy and 328.55 Gy,respectively.The variation rate increased with the increase of radiation dose,and the variation rate was 0.91%higher at 200 Gy than 250 Gy.Agronomic traits and quality traits of 63 mutant strains were analyzed,and it was found that there were different degrees of dif-ferences in appearance and quality among different strains.The variation coefficients of total panicle number and linoleic acid per plant were the largest,which were 43.89%and 18.99%,respectively,and the variation coefficients of stem diameter and unsaturated fatty acid were the smallest,which were 12.29%and 1.02%,respectively.关键词
紫苏/60Co-γ射线/诱变效应/变异系数Key words
Perilla/60Co-γ radiation/mutagenic effect/coefficient of variation分类
农业科技引用本文复制引用
潘金卫,杨航,于二汝,袁婷婷,向依,李慧琳,奉斌..60Co-γ射线辐射对贵苏1号种子萌发及生长的影响[J].耕作与栽培,2025,45(6):18-23,6.基金项目
贵州省农业科学院青年基金项目"紫苏资源核心种质及其SSR指纹图谱的研究"(黔农科青年基金[2023]13号) （黔农科青年基金[2023]13号）
"锈病病原菌侵染对紫苏生理及转录组学影响的研究"(黔农科一般基金[2024]28号) （黔农科一般基金[2024]28号）
贵州省农业科学院国家基金后补助项目"人工老化对紫苏种于生理生化特性和细胞结构影响的研究"(黔农科院国基后补助[2022]01号) （黔农科院国基后补助[2022]01号）
国家自然科学基金项目"紫苏种子老化机制及其延缓修复措施研究"(32160097) （32160097）
贵州省科技计划项目"幼龄油茶林下紫苏种植技术研究"黔科合支撑[2022]一般122 （）
