| 番茄杂交及回交后代耐冷性分析 |
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| 引用本文： | 赵福宽,高遐虹,程继鸿,范双喜,谷建田.番茄杂交及回交后代耐冷性分析[J].长江蔬菜,2001(2):28-29. |
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| 作者姓名： | 赵福宽 高遐虹 程继鸿 范双喜 谷建田 |
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| 作者单位： | 博士,北京农学院园艺系, |
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| 基金项目： | 北京市青年科技新星资助项目，项目号：953811100 |
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| 摘 要： | 以番茄耐冷品系与冷敏感品系为亲本配制成杂种F1代、F2代、回交一代（BC1）及回交二代（BC2），以低温胁迫处理后的胚根生长抑制度和组织伤害率为指标对杂交及回交后代种子发芽期和植株开花期的耐冷性进行了鉴定。结果表明经耐冷性选择的F2与未经选择的F2相比耐冷性明显提高。在BC1群体中分别选择耐冷株和冷敏感株回交得到的BC2的耐冷性存在显著差异。
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| 关 键 词： | 番茄 耐冷性 杂交 回交 抗冷育种 |
| 修稿时间： | 2000年10月31 |
Analysis of Chilling Resistance of Tomato Cross and Backcross Progeny |
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| Zhao Fukuan.Analysis of Chilling Resistance of Tomato Cross and Backcross Progeny[J].Journal of Changjiang Vegetables,2001(2):28-29. |
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| Authors: | Zhao Fukuan |
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| Abstract: | Chilling-resistant and chilling-sensitive tomato lines were used as parents to obtain F1,F2,BC1and BC2.The suppression level of radicle growth and the rate of tissue injury after low temperature stress were used as indexes to identify chilling resistance of cross and backcross progeny during seed germination and flowering period. Results showed that the chilling resistance of selective F2 was higher than that of nonselective F2, significant difference was observed between the chilling resistance of BC2 from chilling-resistant plants and chilling-sensitive plants of BC1 population . |
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