| 紫薇种子辐射变异和抗性初步研究 |
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| 引用本文： | 聂硕,张林,王峰,孙忠奎,朱翠翠,谢宪,王长宪.紫薇种子辐射变异和抗性初步研究[J].农学学报,2016,6(5):47-52. |
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| 作者姓名： | 聂硕 张林 王峰 孙忠奎 朱翠翠 谢宪 王长宪 |
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| 作者单位： | 山东农业大学（本部）林学院2013研404室,泰山林业科学研究院,泰山林业科学研究院,泰安时代园林科技开发有限公司,山东农业大学（本部）林学院2013研404室,山东农业大学（本部）林学院2014研404室,泰山林业科学研究院 |
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| 基金项目： | 山东省农业良种工程项目“紫薇红花系高抗品种选育”（鲁科字〔2015〕131号） |
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| 摘 要： | 为了研究辐射对紫薇种子的影响及选育抗白粉病新品种,以不同剂量的60Co-γ射线处理紫薇种子及对部分植株进行了扦插对比试验,对出苗率、长雄蕊变异、抗性及生长量进行了调查。结果表明,辐射处理可以显著地抑制种子的出苗率；对长雄蕊瓣化现象具有一定的促进作用；在辐射的‘六月飞雪’中,发现了两株对白粉病抗性极强的植株,其他调查植株全部染病；‘抗病1号’表现为对白粉病免疫,‘抗病2号’表现为高抗,‘四海升平’表现 为中感,‘六月飞雪’和‘红火箭’均表现为高感；同时发现两株抗病植株的株高及地径均高于不抗病植株,且抗病植株的落叶期明显晚于不抗病植株。
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| 关 键 词： | 百合 百合 绿色生产 养牛场污水 药食兼用 |
| 收稿时间： | 2015/12/22 0:00:00 |
| 修稿时间： | 2016/1/19 0:00:00 |
Variation and Resistance of Lagerstroemia indica Seed Under Radiation |
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| Abstract: | In order to study the effect of radiation on the Lagerstroemia indica seed and select new varieties with resistance to powdery mildew, the seeds were treated by 60Co-γradiation and contrast tests were carried out using cutting seedlings, the emergence rate, long stamens petalody, resistance and growth were investigated. The results showed that radiation treatment could significantly inhibit the emergence rate and had a certain role in promoting the petalody of long stamens. There were two plants with strong resistance to powdery mildew among the plants of Lagerstroemia indica‘Liuyue Feixue’that were radiated, and the others were infected with powdery mildew. Kangbing No.1 was immune to powdery mildew, and Kangbing No.2 showed high resistance to powdery mildew,‘Sihai Shengping’was moderately sensitive to powdery mildew,‘Liuyue Feixue’and‘Redrocket’were highly sensitive to powdery mildew. The plant height and ground diameter of the two disease-resistant plants were higher than those of the non disease-resistant plants, and the leaf fall period of disease-resistant plants were significantly later than that of non disease-resistant plants. |
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| Keywords: | Lagerstroemia indica Radiation Powdery Mildew |
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