| 李元君 索文龙 宋碧清 牛永志 郑昀晔 马文广.20 个烟草品种 TMV 抗性分析及抗病浸种药剂筛选[J].广东农业科学,2015,42(1):68-72 |
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20 个烟草品种 TMV 抗性分析及抗病浸种药剂筛选 |
| TMV resistance analysis of 20 tobacco cultivars andscreening of resistant soaking reagents |
| 投稿时间：2014-08-07 |
| DOI： |
| 中文关键词: 烟草种子 烟草花叶病毒 抗病药剂 浸种 |
| 英文关键词: tobacco seed TMV resistant reagents soaking |
| 基金项目: |
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| 摘要点击次数: 1898 |
| 全文下载次数: 928 |
| 中文摘要: |
| 通过种子发芽、幼苗生长特征分析对 20 个烟草品种苗期抗 TMV 特性进行初步鉴定、分类，分别选择抗性品种云烟 201 和感性品种 MSK326 为材料，研究不同抗性品种经TMV 病毒浸染后的幼苗生长情况，并测定各生理生化指标。 采用不同药剂对 2 个品种种子浸种处理后比较种子抗病效果，结果表明药剂处理可以提高烟草种子及幼苗抗病性。综合各项指标，采用 1 g/L 甲基托布津溶液能够显著降低感性品种 MSK326 的发病率和发病指数，同时显著提高该品种的叶绿素 a、b 含量和过氧化酶活性。 |
| 英文摘要: |
| In this study, TMV resistant characteristics of 20 tobacco cultivars were preliminarily identified and
classified based on analyzing the seed germination and seedling growth. Then, Yunyan 201 was chosen as tolerant cultivar
and MSK326 was chosen as the sensitive one to be contaminated by TMV virus and then the seedling growth was
investigted. The physiological and biochemical indexes were also tested. The seeds of those two cultivars were soaked with
different reagents to compare the tolerant effects of TMV, which showed that soaking with reagents could increase the TMV
tolerance of tobacco seeds and seedlings. In summary, using 1 g/L thiophanate methyl solution could significantly reduce
the morbidity rate and morbidity index of MSK326, and increase its chlorophyll a and b content and peroxidase activity. |
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