激光诱变洋葱生理效应研究  

Studies on the physiology effect of onion mutants induced by laser

作　　者：任永波[1] 李成佐[1] 张海宇[1] 蒋玲玲[1] 

机构地区：[1]西昌农业高等专科学校,四川西昌615013

出　　处：《西南农业学报》2002年第3期70-72,共3页Southwest China Journal of Agricultural Sciences

基　　金：四川省教育厅重点科研基金项目

摘　　要：采用CO2 和He Ne两种激光的 3种剂量 ,分别辐照两个洋葱品种的湿种子 ,采用生理生化的方法 ,从净同化率、净光合速率、呼吸速率、蛋白质含量等四个方面研究洋葱各处理的生物学效应。结果表明 :He Ne激光辐照洋葱的净同化率、净光合速率、呼吸速率、蛋白质含量的变异大于CO2 激光辐照 ,采用He Ne激光辐照洋葱容易从其变异后代中选择出高产、优质的优良变异株 ,进而育成符合育种目标的优良新品种。Wet seeds of two onion cultivars were exposed by He Ne laser and CO 2 laser at three dosage levels,respectively A randomized complete block design of three replications was adopted The biological effect were analyzed with physiology and biochemistry methods The difference caused by various treatments were observed for net assimilate rate,net photosynthetic rate,respiratory rate,protein content The variability of net assimilate rate,net photosynthetic rate,respiratory efficiency,protein content in onion mutants induced by He Ne laser was larger than that of mutants induced by CO 2 laser

关 键 词：激光诱变 洋葱 生理效应 诱变育种 

分 类 号：S633.2[农业科学—蔬菜学]