WANG Li-zhi,WANG Chun-yan,LI Zhong-jie,et al.Grain-filling Analysis and Curve Fitting on the Super-rice Longdao 5 in Cold Region[J].HEILONGJIANG AGRICULTURAL SCIENCES,2013,(11):21-23.
寒地超级稻龙稻5号籽粒灌浆速率分析与曲线拟合研究
- Title:
- Grain-filling Analysis and Curve Fitting on the Super-rice Longdao 5 in Cold Region
- 文章编号:
- 1002-2767(2013)11-0021-03
- 关键词:
- 超级稻; 龙稻5号; 籽粒灌浆; Logistic模型
- Keywords:
- super-rice; Longdao 5; grain-filling; Logistic equation
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 为促进寒地超级稻育种并提高其栽培技术水平,以寒地超级稻龙稻5号和同区种植面积较大品种龙稻3号为试验试材,研究其籽粒灌浆的动态变化。结果表明:寒地超级稻龙稻5号籽粒灌浆过程中籽粒重量与抽穗后日数符合Logistic方程,推测其最大千粒重为23.94 g,最大籽粒灌浆速率是在抽穗后13 d左右出现。
- Abstract:
- In order to promote the breeding of super-rice in cold and improve the level of cultivation techniques,taking super-rice Longdao 5 and control variety in the same ecotope Longdao 3 as materials,dynamic change of grain-filling was studied.The results showed that grain weight and the days after heading of Longdao 5 were fitted well with Logistic equation,its maximal thousand kernel grain weight was reckoned 23.94 g,the maximum grain-filling rate appeared after heading for 13 d,and the plant area was large.
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备注/Memo
收稿日期:2013-06-27
基金项目:科技部支撑计划资助项目(2012BAD20B0304)
第一作者简介:王立志(1972-),男,蒙古族,黑龙江省讷河市人,硕士,副研究员,从事作物生理及栽培研究。E-mail:wanglizhi0451@126.com。
通讯作者:王连敏(1957-),男,蒙古族,内蒙古自治区开鲁县人,博士,研究员,从事作物生理及栽培研究。E-mail:wanglianmin1267@163.com。