高产杂交稻两优培九旱育秧苗期抗氧化系统活性的研究

doi:10.7525/j.issn.1673-5102.2005.01.023

植物研究 ›› 2005, Vol. 25 ›› Issue (1): 80-85.doi: 10.7525/j.issn.1673-5102.2005.01.023

高产杂交稻两优培九旱育秧苗期抗氧化系统活性的研究

周泉澄¹, 陈国祥¹, 陈利¹, 王建安¹, 张成军¹, 吕川根²

1. 南京师范大学生命科学学院, 南京 210097;
2. 江苏省农业科学院粮食作物研究所, 南京 210014

收稿日期:2004-07-12 出版日期:2005-03-15 发布日期:2016-06-14
作者简介:周泉澄(1972-), 男, 硕士, 主要从事植物生理生化研究工作。
基金资助:
国家自然基金资助项目(30270792);江苏省高校自然科学研究计划项目(02KJB180006)

Study on antioxidation system in high yield hybrid rice Langyoupeijiu seedlings under dry raising conditions

ZHOU Quan-Cheng¹, CHEN Guo-Xiang¹, CHEN Li¹, WANG Jian-An¹, ZHANG Cheng-Jun¹, LÜ Chuan-Gen²

1. College of Life Science, Nanjing Normal University, Nanjing 210097;
2. Institute of Food Crop, Jiangsu Academy of Agricultural Science, Nanjing 210014

Received:2004-07-12 Online:2005-03-15 Published:2016-06-14

摘要/Abstract

摘要： 以汕优63为对照,研究了旱育条件下两优培九幼苗的体内抗氧化系统的特性。显示两优培九在旱育条件下其体内三大抗氧化酶SOD、POD和CAT活性都较水育条件下高,而体内超氧阴离子含量和MDA含量和水育秧相比却没有大的差异;旱育条件下秧苗叶片内积累的脯氨酸量显著高于水育秧。这不但能提高水稻苗期抗旱能力,同时也为移栽大田后具有明显的生长优势和抗胁迫能力打下了物质基础。另外,发现秧苗培育时间过长也不利于获得高质量的秧苗,时间以30 d左右为宜。和汕优63相比,相同条件下的两优培九幼苗抗氧化系统活性较高,这也可能是两优培九高产的生理基础之一。

关键词: 高产杂交稻, 两优培九, 抗氧化系统, 旱育

Abstract: Compared with Shanyou 63, the characters of antioxidation system in a new-developed rice hybrid Liangyoupeijiu seedlings under dry raising conditions was studied. The results showed that activities of SOD, POD and CAT in Liangyoupeijiu seedlings under dry raising conditions were higher than those of seedlings under water raising conditions. In terms of MDA content and producing rate of O₂^· in seedling, there were not notable differences between dry and water raising conditions. Proline content was accumulated more in seedlings under dry raising conditions than seedlings under water raising conditions. Which enhanced ability of rice at repelling dry, at the same time, made material bases for dominance growthing in field. The study suggested Liangyoupeijiu displayed its potentiality of light energy inversion better under the high activity of antioxidation system, which was one of the physiologic bases on high yield. And study suggested it was good that the time raising seedling was thirty days or can' t get good seedling.

Key words: high yield hybrid rice, Liangyoupeijiu, antioxidation system, dry raising

周泉澄, 陈国祥, 陈利, 王建安, 张成军, 吕川根. 高产杂交稻两优培九旱育秧苗期抗氧化系统活性的研究[J]. 植物研究, 2005, 25(1): 80-85.

ZHOU Quan-Cheng, CHEN Guo-Xiang, CHEN Li, WANG Jian-An, ZHANG Cheng-Jun, LÜ Chuan-Gen. Study on antioxidation system in high yield hybrid rice Langyoupeijiu seedlings under dry raising conditions[J]. Bulletin of Botanical Research, 2005, 25(1): 80-85.

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高产杂交稻两优培九旱育秧苗期抗氧化系统活性的研究

Study on antioxidation system in high yield hybrid rice Langyoupeijiu seedlings under dry raising conditions

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