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当前位置: 首页 > 文章 > 重离子束(C)辐照诱变东北粳稻后代变异的初步研究 中国稻米 2019 (1) 58-61
Position: Home > Articles > Preliminary Investigation of Offspring Variation of the Japonica Rice in Northeast China under Heavy Ion Beam Radiation China Rice 2019 (1) 58-61

重离子束(C)辐照诱变东北粳稻后代变异的初步研究

作  者：
李景鹏;余丽霞;杨福
单  位：
中国科学院东北地理与农业生态研究所;中国科学院近代物理研究所
关键词：
重离子;东北粳稻;通禾899;突变率;诱变
摘  要：
利用高能重离子束(C)辐照诱变东北粳稻通禾899,剂量为0(CK)、200Gy,初步研究了重离子束(C)辐照诱变后代材料出现的突变情况。结果表明,辐照M_1代全部为半不育,结实率5.2%;M_2代突变率5.7%,高于传统的γ、X射线辐照诱变的突变率,而且突变体的类型丰富;经过M_3～M_5代的连续种植和选择,后代突变体群体越来越大,大部分突变材料均已稳定,少量后代材料综合性状优良,生育期比对照通禾899明显提前,已参加吉林省水稻新品种联合区域试验。但有近30%的材料在M_5代还存在分离或疯狂分离,分离的材料绝大部分表现为长粒型,千粒重偏低,外观品质好。
译  名：
Preliminary Investigation of Offspring Variation of the Japonica Rice in Northeast China under Heavy Ion Beam Radiation
作  者：
LI Jingpeng;YU Lixia;YANG Fu;Northeast Institute of Geography and Agricultural Ecology, CAS;Institute of Modern Physics, CAS;
单  位：
LI Jingpeng%YU Lixia%YANG Fu%Northeast Institute of Geography and Agricultural Ecology, CAS%Institute of Modern Physics, CAS
关键词：
heavy ion;;Northeast japonica rice;;Tonghe 899;;mutation rate;;mutation
摘  要：
A preliminary study on mutations of Tonghe 899, a japonica rice variety in Northeast China, was conducted after the heavy ion beam C irradiation on rice seeds with the dosages of Gy at 0, 200. The results showed that the generations of M_1 were all half sterile with seed setting rate of 5.2%. The mutant types were found various and mutant rate of M_2 maintained 5.7%, which was higher than the traditionally mutant rate in radiation with γ and X ray. Moreover, the mutant population showed more abundant after planting from M_3 to M_5. Characters of most mutants maintained stable. Some mutants were found excellent with more early growth period than Tonghe 899(CK)and have been conduct with the joint area test of new rice varieties in Jilin province. However, there are also 30%mutants showed apparent separates with the characters of long-grain, low 1000-grain weight and high appearance quality.

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