施氮量对超级杂交中稻生育后期剑叶叶绿素荧光特性的影响

龙继锐1,马国辉1,*,万宜珍1,宋春芳1,孙健2

doi:10.3969/j.issn.10017216.2011.05.008

中国水稻科学 >

2011 , Vol. 25 >Issue 5: 501 - 507

DOI: https://doi.org/10.3969/j.issn.10017216.2011.05.008

研究报告

施氮量对超级杂交中稻生育后期剑叶叶绿素荧光特性的影响

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¹湖南杂交水稻研究中心杂交水稻国家重点实验室, 湖南长沙 410125; ²湖南浏阳永安农技站, 湖南浏阳 410323

收稿日期: 2010-11-15

修回日期: 2011-03-19

网络出版日期: 2011-09-10

基金资助

国家科技支撑计划资助项目（2006BAD02A13）；湖南省十一五农业重大专项(2006NK1001)

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Effects of Nitrogen Fertilizer Level on Chlorophyll Fluorescence Characteristic in Flag Leaf of Super Hybrid Rice at Late Growth Stage

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¹ State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha 410125, China; ²Agricultural Technology Popularity Center of Yong′an Town, Liuyang City, Liuyang 410323, China

Received date: 2010-11-15

Revised date: 2011-03-19

Online published: 2011-09-10

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摘要

以缓释氮肥为材料，采用快速光曲线分析方法，比较研究了大田条件下6种施氮水平对超级杂交稻Y两优1号抽穗到蜡熟期剑叶叶绿素荧光动力参数的影响。结果表明,抽穗到齐穗后20 d，剑叶光合电子传递速率(ETR)、有效量子产量(EQY)和光化学猝灭系数(qP)均随时间推进而提高，非光化学猝灭系数(NPQ)则呈下降趋势；同一时期， ETR、EQY、qP均表现为随施氮量增加先增后减，但最高值的施氮量均不同；不同时期，ETR和EQY均以施氮135 kg/hm2时最高。综合来看，本试验条件下，施氮量以135～180 kg/hm2时叶绿素荧光指标组合最优

关键词： 超级杂交稻; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱缓释氮肥; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱叶绿素荧光; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱节氮栽培

本文引用格式

龙继锐1,马国辉1,*,万宜珍1,宋春芳1,孙健2 . 施氮量对超级杂交中稻生育后期剑叶叶绿素荧光特性的影响[J]. 中国水稻科学, 2011 , 25(5) : 501 -507 . DOI: 10.3969/j.issn.10017216.2011.05.008

Abstract

To compare the effects of nitrogen fertilizer level on chlorophyll fluorescence characteristics in super hybrid rice flag leaves, a field fertilizer (slow release nitrogen) experiment was conducted with a super hybrid rice Y Liang you 1 as material. The photosynthetic electron transport rate (ETR), effective quantum yield (EQY), photochemical quenching coefficient(qP), and nonphotochemical quenching coefficient(NPQ) of flag leaves were measured at the heading, full heading, 10 d after full heading, 20 d after full heading. The results indicated that the ETR and EQY were increased from heading to 20 d after full heading, whereas, the NPQ decreased. During the same period, ETR, EQY, qP increased firstly and then decreased with increasing nitrogen level. The ETR and EQY at 135 kg/hm2 nitrogen level were the highest. In conclusion, the adaptive nitrogen amount for photosynthesis were 135-180 kg/hm2.

Key words： super hybrid rice; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱slow release nitrogen fertilizer; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱chlorophyll fluorescence; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱nitrogensaving cultivation

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