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小麦品种苏麦3号的21个单体系统经诱变剂量的~(60)Co-γ射线照射后,不同单体及不同性状的辐射敏感性表现不同,在抗赤霉病性上,按接种至始症发病天数、接种至穗轴发病天数、接种后第15天病小穗数、腊熟期病小穗数及病小穗率等几个指标统计,辐射后二体表现不敏感,却有几个单体系表现敏感提高了抗性.对于分蘖数、抽穗期、株高、剑叶长和宽,每穗小穗数等性状,二体与单体的表现趋势相同,只有4A的敏感性最大.
Radiation sensitivity of different monomers and different traits was different after 21 mutagenic systems of wheat variety Sumai 3 were irradiated by ~ (60) Co-γ ray of mutagenized dose The number of days of inoculation onset to onset of disease, the number of days of inoculation to cob, the number of spikelets on day 15 after inoculation, the number of spikelets in waxy stage and the rate of spikelets at the time of inoculation, the body performance after radiation was insensitive, However, there were several single lines that were susceptible to improve resistance.For the tiller number, heading stage, plant height, flag leaf length and width, number of spikelets per panicle, the two body and the monomer showed the same trend, only 4A Most sensitive.