| 京单38不同播期子粒灌浆特性研究 |
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| 引用本文： | 王荣焕,赵久然,陈传永,徐田军,刘秀芝,王元东,刘春阁.京单38不同播期子粒灌浆特性研究[J].玉米科学,2013,21(6):59-63. |
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| 作者姓名： | 王荣焕 赵久然 陈传永 徐田军 刘秀芝 王元东 刘春阁 |
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| 作者单位： | 北京市农林科学院玉米研究中心, 北京 100097;北京市农林科学院玉米研究中心, 北京 100097;北京市农林科学院玉米研究中心, 北京 100097;北京市农林科学院玉米研究中心, 北京 100097;北京市农林科学院玉米研究中心, 北京 100097;北京市农林科学院玉米研究中心, 北京 100097;北京市农林科学院玉米研究中心, 北京 100097 |
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| 基金项目： | 国家玉米产业技术体系（nycytx-02）；北京市农林科学院青年科研基金（QN201115）；北京市农林科学院科技创新基金（CXJJ201309） |
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| 摘 要： | 以郑单958为对照，设置春播（5月14日）和夏播（6月13日）两个播期处理，研究玉米品种京单38在不同生态条件下的子粒灌浆特性。结果表明，京单38的百粒干物重高于对照品种郑单958，春、夏播条件下增幅分别为14.74%和20.26%，春播百粒干物重较夏播高1.87%。京单38的子粒灌浆速率高于郑单958，春、夏播最大灌浆速率分别较对照高42.27%和49.50%，夏播最大灌浆速率较春播高9.42%。相关和通径分析表明，最大灌浆速率与粒重呈极显著正相关，与郑单958相比，京单38子粒灌浆速率高且灌浆速度快，春、夏播条件下均可获得较高的粒重。
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| 关 键 词： | 玉米 京单38 子粒灌浆 播期 |
| 收稿时间： | 2013/6/12 0:00:00 |
Grain Filling Characters of Maize Hybrid Jingdan38 |
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| WANG Rong-huan,ZHAO Jiu-ran,CHEN Chuan-yong,XU Tian-jun,LIU Xiu-zhi,WANG Yuan-dong and LIU Chun-ge.Grain Filling Characters of Maize Hybrid Jingdan38[J].Journal of Maize Sciences,2013,21(6):59-63. |
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| Authors: | WANG Rong-huan ZHAO Jiu-ran CHEN Chuan-yong XU Tian-jun LIU Xiu-zhi WANG Yuan-dong and LIU Chun-ge |
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| Institution: | Maize Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;Maize Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;Maize Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;Maize Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;Maize Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;Maize Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;Maize Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China |
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| Abstract: | The grain filling characters under spring and summer sowing conditions(5/14, T1 and 6/13, T2) of maize hybrid Jingdan38(JD38) were studied by using Zhengdan958(ZD958) as the control. The results showed that the 100-grain dry weight of JD38 under T1 and T2 treatment was higher than ZD958 respectively, and the T1 treatment was 1.87% higher than T2. The grain filling rate of JD38 was higher than ZD958, the Gmax of JD38 was 42.27% and 49.50% higher than ZD958, the Gmax of JD38 under T2 was 9.42% higher than T1. Correlation and path analysis showed that the kernel dry weight was positively correlated with the Gmax. Compared to ZD958, JD38 was characterized with higher grain filling rate and faster grain development, and could gain higher grain weight under spring and summer sowing conditions. |
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| Keywords: | Maize Jingdan38 Grain filling Sowing date |
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