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[1]赵祥 王学春 吴凡 杨国涛 张杰 陈永军 彭友林 邹挺 李天春 胡运高**.四川常用杂交稻品种对低氮胁迫的响应差异及其筛选方法*[J].应用与环境生物学报,2019,25(06):1-14.[doi:10.19675/j.cnki.1006-687x.2019.03014]
 ZHAO Xiang,WANG Xuechun,WU Fan,et al.Difference in response to lower-nitrogen stress and the screening methods of hybrid rice in Sichuan Province*[J].Chinese Journal of Applied & Environmental Biology,2019,25(06):1-14.[doi:10.19675/j.cnki.1006-687x.2019.03014]
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四川常用杂交稻品种对低氮胁迫的响应差异及其筛选方法*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年06期
页码:
1-14
栏目:
研究论文
出版日期:
2019-12-30

文章信息/Info

Title:
Difference in response to lower-nitrogen stress and the screening methods of hybrid rice in Sichuan Province*
作者:
赵祥1 王学春1 吴凡3 杨国涛1 张杰1 陈永军1 彭友林1 邹挺1 李天春2 胡运高1**
1西南科技大学水稻研究所 绵阳 621010
2四川西科种业股份有限公司 绵阳 621010
3绵阳市农业科学研究院 绵阳 621010
Author(s):
ZHAO Xiang1;? WANG Xuechun1;? WU Fan3;? YANG Guotao1;? ZHANG Jie1;? CHEN Yongjun1;? PENG Youlin1;? ZOU Ting1;? LI Tianchun2 & HU Yungao1**
1 School of Life Science and Technology, Southwest University of Science and Technology, Mianyang 621010, China; 2 Sichuan Xike Seed Co., Ltd. , Mianyang 621010, China 3 Mianyang Academy of Agricultural Science, Mianyang 621010, China
关键词:
杂交水稻;?氮胁迫;?响应;?评价;?筛选
Keywords:
hybrid r ice;? nitrogen stress;? response;? evaluation;? selection
DOI:
10.19675/j.cnki.1006-687x.2019.03014
摘要:
氮素是水稻生长发育过程中重要的营养元素,为明确杂交水稻对低氮胁迫的响应差异,构建符合生产需要的耐低氮水稻品种评价体系,可为耐低氮水稻品种选育提供理论支撑。以四川常用的26个杂交水稻品种为试验材料,采用田间试验的方法,通过比较低氮处理(LN,纯氮45 kg/hm2)和正常氮处理(NN,纯氮150 kg/hm2)下参试品种的产量构成、顶三叶SPAD动态和分蘖动态等数据,构建能够综合评价水稻耐低氮胁迫能力的评价方法。结果显示,(1)杂交水稻耐低氮产量评价指数(RICY)和耐低氮分蘖动态评价指数(RICT)对低氮处理产量影响最大,其通径系数分别为0.374和0.378;耐低氮返青评价指数(RICR)和耐低氮转色评价指数(RICC)对低氮处理的产量影响相对较小,其通径系数分别为0.249和0.213。(2)低氮条件下,水稻顶3叶SPAD值与水稻产量间的相关系数在返青期、分蘖盛期显着高于其他生育时期。本研究表明耐低氮综合指数RITCM可以用来评价水稻对低氮胁迫的耐受能力,二级指标RICT、RICR和RICC能较好地反映水稻分蘖动态、移栽返青和转色落黄等对低氮胁迫的耐受能力,可为低氮条件下水稻生产提供必要理论依据。
Abstract:
Nitrogen is an important nutrient element in the process of rice growth and development. In order to clarify the response differences of hybrid rice to low nitrogen stress, and to construct a low nitrogen tolerance rice variety evaluation system to meet the needs of production. The purpose of this study is to provide theoretical support for the breeding of low nitrogen tolerant rice varieties. Take twenty-six hybrid rice varieties commonly used in Sichuan as experimental materials, and the method of field experiment was used. The yield components, dynamic SPAD value of top three leaves and dynamic tiller number were compared between low nitrogen treatment (LN, pure nitrogen 45 kg/hm 2) and normal nitrogen treatment (NN, pure nitrogen 150 kg/hm2). The purpose of this paper is to construct an evaluation method which can comprehensively evaluate the tolerance of rice to low nitrogen stress. The results showed that: 1) yield evaluation index of tolerance to low nitrogen (RICY) and dynamic tiller number evaluation index of tolerance to low nitrogen (RIC T) had the greatest effect on the yield of low nitrogen treatment. Their path coefficients were 0.374 and 0.378, respectively . Turning green evaluation index of tolerance to low nitrogen (RIC R) and color conversion evaluation index of tolerance to low nitrogen (RIC C) had relatively little effect on the yield of low nitrogen treatment, and their path coefficients were 0.249 and 0.213, respectively. 2) under the low nitrogen treatment , the correlation coefficient between SPAD value of top 3 leaves and rice yield was significantly higher at turning green stage and top tillering stage than that at other growth stages. The results showed that the comprehensive index of tolerance to low nitrogen (RITCM) could be used to evaluate the tolerance of rice to low nitrogen stress, and the secondary indicators RICT, RICR and RIC C could reflect the tolerance of rice to low nitrogen stress well, such as dynamic tiller number, turning green of transplanting seedlings and turning the color yellow. It can provide the necessary theoretical basis for rice production under low nitrogen environment.

相似文献/References:

[1]陈敬,彭友林,张圣豪,等.长江上游地区杂交水稻亲本遗传多样性[J].应用与环境生物学报,2017,23(04):595.[doi:10.3724/SP.J.1145.2017.02028]
 CHEN Jing#,PENG Youlin#,ZHANG Shenghao,et al.QTL mapping of yield-related traits in the high-yield wheat variety Chuanmai42[J].Chinese Journal of Applied & Environmental Biology,2017,23(06):595.[doi:10.3724/SP.J.1145.2017.02028]

备注/Memo

备注/Memo:
收稿日期 Received: 2019-03-06 接受日期 Accepted: 2019-05-13
*国家粮食丰产增效科技创新项目(2017YFD0100206)、国家自然科学基金项目(31401347)、国家现代农业产业技术体系四川水稻创新团队岗位专家项目(川农业函[2014]91号)、四川省育种攻关项目(2016NYZ0028)、四川省科技计划项目(18HH0039, 2018NZZJ001)、四川省教育厅成果转化项目(18CZ0015)、四川省教育厅一般研究项目(18ZB1605)和绵阳市科技计划项目(2018CXPY002)资助
**通讯作者 Corresponding author (E-mail: swust.rri@163.com)
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更新日期/Last Update: 2019-05-14