|本期目录/Table of Contents|

[1]徐莎莎,杨沈斌,江晓东,等.水稻净光合作用速率对叶温变化的响应 ——以两优培九为例[J].江苏农业科学,2018,46(16):42-46.
 Xu Shasha,et al.Response of rice net photosynthesis rate to change of leaf temperatures—Taking Liangyoupeijiu as an example[J].Jiangsu Agricultural Sciences,2018,46(16):42-46.
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水稻净光合作用速率对叶温变化的响应
——以两优培九为例
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第46卷
期数:
2018年第16期
页码:
42-46
栏目:
遗传育种与耕作栽培
出版日期:
2018-08-30

文章信息/Info

Title:
Response of rice net photosynthesis rate to change of leaf temperatures—Taking Liangyoupeijiu as an example
作者:
徐莎莎12 杨沈斌2 江晓东2 高苹3
1.江苏省扬州市气象局,江苏扬州 225009; 2.南京信息工程大学应用气象学院,江苏南京 210044;
3.江苏省气象局,江苏南京 210008
Author(s):
Xu Shashaet al
关键词:
生育期低温冷害干物质积累品种改良作物模型
Keywords:
-
分类号:
S511.01
DOI:
-
文献标志码:
A
摘要:
水稻叶片光合作用的温度依存关系呈现为单峰型曲线,该曲线随水稻品种、所处环境的改变而变化。以两优培九为例,采用人工气候控制试验,获取在15~45 ℃范围内每5 ℃为1个梯度的抽穗开花期剑叶光响应和CO2响应的曲线特征参数值。结合特征参数的温度依存关系及Farquhar光合作用机制模型,模拟出饱和光照度和当前CO2浓度水平下剑叶净光合作用速率与叶温的变化关系。结果显示,从15~45 ℃,净光合作用速率呈现先增大后减小的非线性变化,最适温度出现在33 ℃左右。低温(<25 ℃)对净光合作用的抑制较高温(35~45 ℃)作用明显,表明该品种抽穗开花期的光合作用过程对低温敏感。上述结果可用于品种改良和水稻作物模型中与光合作用模拟有关的温度参数订正。
Abstract:
-

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-10-31
基金项目:国家公益性行业(气象)科研专项(编号:GYHY201306035、GYHY201306036、GYHY201506055);国家“十二五”科技支撑计划(编号:2011BAD32B01);江苏高校优势学科建设工程(编号:PAPD)。
作者简介:徐莎莎(1982—),女,江苏溧阳人,硕士,工程师,主要从事应用气象研究。Tel:(0514)87870213;E-mail:308643256@qq.com。
通信作者:杨沈斌,博士,副教授,主要从事农业气象研究。E-mail:jaasyang@163.com。
更新日期/Last Update: 2018-08-20