水稻激光育种的研究——Ⅱ.糙米激光处理诱发变异分析  

Studies on Rice Breeding with Laser Treatment Ⅱ.Analysis on the Variation of Brown Rice Treated with Laser

作　　者：张俊国[1] 张三元[1] 张学臣[2] 宋林森[2] 李占国[2] 林秀云[1] 

机构地区：[1]吉林省农业科学院水稻研究所,吉林公主岭136100 [2]长春理工大学,长春130000

出　　处：《吉林农业科学》2005年第5期3-6,16,共5页Journal of　Jilin Agricultural Sciences

基　　金：吉林省自然科学基金资助项目(20020671)

摘　　要：对水稻吉粳88的糙米进行了不同波长、功率及时间的激光处理熏由于处理的功率大、时间长,各处理组合的成苗率均显著下降,处理的强度越大,成苗率越低。但品种性状在绝大多数处理组合内都出现了遗传变异,而且变异类型丰富,其中发生频率最高的质量性状为芒性变异,占全部变异株的80%以上,然后依次为着粒密度、粒长、熟期和株高,数量性状中单株穗数变异频率最高,其次为穗粒数,千粒重变异频率最低,各类变异为选育新品种奠定了基础,通过本试验还明确了激光处理的功率在10～20mw;时间5～10min效果较好,说明激光照射可以作为有效的育种新方法应用于水稻新品种选育。“Jijing 88”, a variety of brown rice was treated with laser at different wavelength and induce variation. The results showed that the more treated times and the stronger of power, the less of power to seedling obtained. Many characters of the variety appeared genetic variation. Among quality characters the awn changed the most, which account for 80% of total plants. Then is grain density, grain length, maturing time and plant height. Among quantitative characters the tiller rate changed the most. Then is grain per panicle and grain weight. The experiment demonstrated that laser treatment at the power of 10-20 mw and 5-10 min could get ideal effect. So the laser treatment could be a new method in rice breeding.

关 键 词：水稻 激光 育种 变异 

分 类 号：S511.035[农业科学—作物学]