| 利用离体诱变技术选育小麦大粒种质的研究 |
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| 引用本文： | 吕善勇,何世贤.利用离体诱变技术选育小麦大粒种质的研究[J].生物技术,1994,4(1):22-25. |
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| 作者姓名： | 吕善勇 何世贤 |
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| 作者单位： | 山东省农科院原子能农业应用研究所 |
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| 摘 要： | 以鲁麦１２等为材料进行幼层培养，转分化前辐照１０００ｒａｄ，在Ｒ２代调查千粒重变异情况，结果表明，后代千粒重发生了显著变化，变异范围为３９．５—６８．５ｇ．突变率高达６３．０８％，最高千粒重超过对照４０．９５％。已选出一批大粒材料应用于生产．其中核生二号新品种千粒重６５ｇ，杂交后代表明，大粒变异多为显性突变。
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| 关 键 词： | 小麦 幼胚培养 辐照 千粒重 突变 |
Study on the Selection of Wheat Macro-kernel Germplasm by the Technique of in Vitro Irradiation |
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| Lu Shanyong,He Shixian,Sun Guizhi, Shi Xiangyu, Liu Jinyuan.Study on the Selection of Wheat Macro-kernel Germplasm by the Technique of in Vitro Irradiation[J].Biotechnology,1994,4(1):22-25. |
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| Authors: | Lu Shanyong He Shixian Sun Guizhi Shi Xiangyu Liu Jinyuan |
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| Abstract: | The young embryo of "Lumei No.12" was cultured.Their callus was treated with 60 Co-r rays of 10Gy just before diffarenhation.The variation result of 1000-kernel-wcight in R2 yeneration showed that the 1000-kernel-Wedt changed wiificantly in the progenies with a range of 39.5-68.5g,and the mutation rate ap to 63.08%,the po 1000-kernel-wegh was 40.95% her than that of CK.A few strains with macro-kernel have been selected and applied cd ptoduction.TIle new wanety of"HESHENG No.2" with 1000-kernel-weight Of 65g is one of them.The hybridhation progenies also showed that most macro-kernel variat6ions are dominant mutations. |
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| Keywords: | Common wheat Young embryo culture 1000-kernel-weight Mutation |
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