ISWC OpenIR  > 水保所知识产出(1956---)
干旱胁迫下氮肥对玉米叶片衰老影响及与碳氮平衡的关系
熊炳霖1,2; 王仕稳1,3; 王鑫月1,2; 陈道钳3; 殷俐娜1,3
2016
Source Publication玉米科学
Volume24Issue:3Pages:138-146
Abstract

以玉米品种兴民18为研究材料,设置高氮和低氮两个氮水平,通过盆栽人工控水的方式进行干旱和
复水处理,分析干旱胁迫下氮肥对玉米叶片衰老和叶片碳氮平衡的影响,研究碳氮平衡和叶片衰老及抗旱性的关
系。研究结果表明,在干旱胁迫下,高氮处理下增加了玉米对干旱的敏感性,加快了干旱胁迫下玉米叶片的衰老进
程;干旱胁迫下碳氮比显著升高,说明碳氮平衡可能参与了干旱诱导的叶片衰老调控。在干旱胁迫及复水条件下,
干旱条件下高氮处理的碳氮比相较于低氮处理增加幅度更大,碳氮平衡受干旱破坏程度更严重,说明高氮并不能增
加干旱胁迫后下部衰老叶片中的氮浓度,也不能缓解干旱胁迫引起的碳氮失衡。干旱胁迫下高氮导致碳氮失衡加
剧,可能是高氮增加了玉米对干旱的敏感性和叶片加速衰老的原因之一。

Other Abstract

To investigate the influence of nitrogenous fertilizer on carbon/nitrogen balance of senescent leaves
under drought stress, and the association of the nitrogenous fertilizer and the drought-induced leaf senescence with
drought resistance. The maize cultivar Xingmin 18 was potted and treated with two nitrogen levels, as well as
drought stress and rehydration. The results indicated that drought stress induced the maize leaf senescence accompa⁃
nied with the increase of Carbon/Nitrogen ratio. Therefore, carbon and nitrogen metabolisms were tightly associated
with drought-induced leaf senescence, and the carbon/nitrogen balance may involve in the regulation of drought-in⁃
duced leaf senescence. Compared with low nitrogen level, the C/N imbalance of high nitrogen levels was more seri⁃
ous under drought stress, which indicated that the nitrogen concentration in maize leaf was not increasing under
drought stress when increased nitrogenous fertilizer, and also couldn’t alleviate carbon/nitrogen imbalance that
caused by drought stress. The results showed that, under drought stress, carbon/nitrogen imbalance was more serious
under high nitrogen condition. And it may be one of the reasons for that high nitrogen level increased the sensitivity
to drought stress and accelerated leaf senescence.

Keyword玉米 氮肥 干旱 叶片衰老 碳氮平衡
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8732
Collection水保所知识产出(1956---)
Affiliation1.中科院水利部水土保持研究所/黄土高原土壤侵蚀与旱地农业国家重点实验室
2.中国科学院大学
3.西北农林科技大学水土保持研究所
Recommended Citation
GB/T 7714
熊炳霖,王仕稳,王鑫月,等. 干旱胁迫下氮肥对玉米叶片衰老影响及与碳氮平衡的关系[J]. 玉米科学,2016,24(3):138-146.
APA 熊炳霖,王仕稳,王鑫月,陈道钳,&殷俐娜.(2016).干旱胁迫下氮肥对玉米叶片衰老影响及与碳氮平衡的关系.玉米科学,24(3),138-146.
MLA 熊炳霖,et al."干旱胁迫下氮肥对玉米叶片衰老影响及与碳氮平衡的关系".玉米科学 24.3(2016):138-146.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[熊炳霖]'s Articles
[王仕稳]'s Articles
[王鑫月]'s Articles
Baidu academic
Similar articles in Baidu academic
[熊炳霖]'s Articles
[王仕稳]'s Articles
[王鑫月]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[熊炳霖]'s Articles
[王仕稳]'s Articles
[王鑫月]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.