摘要
分别以30Gy/h、1.25Gy/h、0.125Gy/h、0.0625Gy/h和0.0417Gy/h剂量率水平,利用30Gy60Co-γ射线对小麦种子进行辐射处理,考查M1代的株高、根系长、有效分蘖数、穗数、穗粒数、千粒重和产量等农艺性状,并分析剂量率因素对低剂量辐射的影响。结果表明:(1)剂量率是一个影响低剂量辐射的重要因素(2)当剂量率降至0.125Gy/h及其以下时,辐射处理小麦的各性状均明显高于对照,(3)小麦低剂量辐射的较适宜剂量率是0.0625Gy/h。
The seeds of wheat were radiated by 30Gy ^60Co-γ ray with the radiation dose-rate of 30Gy/h, 1.25Gy/h,0.125Gy/h,0.0625Gy/h and 0.0417Gy/h, investigation the apronomic traits of M1 generation, study on the effect of low dose radiation on agronomic traits of M1 generation and analysis the effect of dose rate on low dose radiation. The investigation result showed that （1）Dose-rate is a important factor for the low dose radiation; （2）The agronomic traits of wheat which were raidiated by 30Gy ^60Co-γ ray are obviously higher than these of control when the dose-rate be ruduced less than 0.125Gy/h; （3） The optimum dose-rate of wheat for low dose radiation was 0.0625Gy/h.
出处
《中国农学通报》
CSCD
2008年第1期220-223,共4页
Chinese Agricultural Science Bulletin
