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| 携带显性半矮杆基因水稻的耐肥抗倒性研究 | |
| 引用本文： | 严志,张从合,黄艳玲,周桂香,吴跃进.携带显性半矮杆基因水稻的耐肥抗倒性研究[J].安徽农业科学,2011,39(18):10752-10755,10758. |
| 作者姓名： | 严志 张从合 黄艳玲 周桂香 吴跃进 |
| 作者单位： | 1. 安徽农业大学,安徽,合肥,230036;安徽荃银高科种业股份有限公司,安徽,合肥,230088 2. 安徽荃银高科种业股份有限公司,安徽,合肥,230088 3. 中国科学院合肥物质研究院,安徽,合肥,230031 |
| 基金项目： | 国家科技支撑计划项目(2008BAD93B02); 安徽省科技计划重大攻关项目(09010301020); 合肥市优质杂交水稻选育工程技术研究中心项目(合科[2010]92号) |
| 摘 要： | 摘要目的]为矮化杂交稻的育种提供参考。方法]对具显性半矮杆基因SD，d（t）的水稻SD9311-1、SD9311-2及其两系不育系为母本配制的杂交一代组合进行耐肥抗倒性研究。以轮回亲本9311为对照，对含有SD—d（t）基因的显性半矮杆材料的农艺性状进行研究。结果]显性半矮杆能够显著降低F1代的株高，提高组合的抗倒性，株高与产量间相关性不显著。降低株高的同时，并没有使产量降低。显性半矮秆材料还能促进有效穗、结实率的提高，使显性矮杆的产量潜力高于高秆类型。显矮配组16个组合倒伏指数随肥力的增加而增大，抗倒能力减小。结论]SD9311-1、SD9311-2组合能够在产量不变的情况下显著降低株高，从而降低了倒伏的风险。 |
| 关 键 词： | 水稻 显性半矮秆 氮肥用量 倒伏指数 |
Study on the Lodging Resistance and Fertilizer Tolerance of Rice with Dominant Semi-dwarf Gene |
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| YAN Zhi et al.Study on the Lodging Resistance and Fertilizer Tolerance of Rice with Dominant Semi-dwarf Gene[J].Journal of Anhui Agricultural Sciences,2011,39(18):10752-10755,10758. | |
| Authors: | YAN Zhi |
| Institution: | YAN Zhi et al(Anhui Agricultural University,Hefei,Anhui 230036) |
| Abstract: | Objective] The research aimed to provide reference for the breeding of dwarfed hybrid rice.Method] The fertilizer tolerance and lodging resistance of rice hybridization combinations crossed by rice SD9311-1,SD9311-2 with dominant semi-dwarf SD-d(t) gene and two-line sterile lines as maternal parent were studied.Taking recurrent parent as control,the agronomic traits of dominant semi-dwarf materials containing SD-d(t) gene were studied.Result] The dominant semi-dwarf rice can significantly lower the plant... |
| Keywords: | Rice Dominant semi-dwarf Dosage of nitrogen fertilizer Lodging index |
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