生命科学学院机构知识库

Institutional Repository, School of Life Sciences

 

兰州大学机构库  > 生命科学学院  > 期刊论文
题名: Recently-released genotypes of naked oat (Avena nuda L.) out-yield early releases under water-limited conditions by greater reproductive allocation and desiccation tolerance
作者: Wang, T; Du, YL; He, J; Turner, NC; Wang, BR; Zhang, C; Cui, T; Li, FM(李凤民)
收录类别: SCIE
出版日期: 2017-03-15
刊名: FIELD CROPS RESEARCH
卷号: 204, 页码:169-179
出版者: ELSEVIER
出版地: AMSTERDAM
英文摘要: Naked oat (Avena nuda L) is becoming increasingly popular because of its high nutritive value and increased yields. As naked oat is grown in marginal environments, one of the limitations to yield is drought stress. In this study conducted in the field and a rainout shelter, the yield, water relations, and physiological and biochemical responses to drought of six genotypes, three released since 2008 (recently released, RR) and three genotypes released at least 60 years earlier (early-released, ER) were compared. The grain yield, harvest index (HI) and water use efficiency for grain were higher in the RR than ER genotypes under rainfed and irrigated conditions in the field and under drought and well-watered conditions in the rainout shelter. Aboveground biomass and HI had significant direct effects on grain yield, while leaf dry weight was negatively associated with grain yield in the rainout shelter. During a progressive soil drying experiment, the threshold soil water content (SWC) when stomatal conductance and photosynthesis began to decrease was lower in the RR [48-52% field capacity (FC)] than ER (54-58% FC) genotypes, but whole plant transpiration began to decrease when the leaf water potential and relative water content began to decrease at a threshold SWC of 31-44% FC in both the RR and ER genotypes. The beginning of the decrease in stomatal conductance and photosynthesis was associated with the increase in leaf abscisic acid concentration, but higher osmolyte accumulation, greater osmotic adjustment and less lipid peroxidation in the RR genotypes than the ER genotypes occurred at low SWC (below 30% FC) and are associated with greater desiccation tolerance in the RR genotypes. We conclude that the higher yields in the RR genotypes of naked oat are associated with selection for higher reproductive allocation and desiccation tolerance. The role of stomatal closure and osmotic adjustment on adaptation to drought are discussed. (C) 2017 Elsevier B.V. All rights reserved.
关键词: Drought stress ; Osmotic adjustment ; Leaf water potential ; Photosynthesis ; Relative water content ; Transpiration
作者部门: [Wang, Tao ; Du, Yan-Lei ; He, Jin ; Turner, Neil C. ; Wang, Bing-Ru ; Zhang, Cong ; Cui, Ting ; Li, Feng-Min] Lanzhou Univ, Sch Life Sci, Inst Arid Agroecol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China ; [Turner, Neil C.] Univ Western Australia, UWA Inst Agr, M082,Locked Bag 5005, Perth, WA 6001, Australia
通讯作者: Du, YL ; Li, FM (reprint author), Lanzhou Univ, Sch Life Sci, Inst Arid Agroecol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Gansu, Peoples R China.
学科分类: Agriculture
文章类型: Article
所属项目编号: National Nature Science Foundation of China [31300328, 31470496] ; Fundamental Research Funds for Central Universities [lzujbky-2016-86, lzujbky-2015-ct02] ; '111' Program [2007B051] ; Program for Innovative Research Teams of Ministry of Education of China [IRT_13R26] ; University of Western Australia
所属项目名称: 国家自然科学基金项目 ; 长江学者和创新团队发展计划 ; 高等学校学科创新引智计划(111计划) ; 中央高校基本科研业务费专项资金
项目资助者: NSFC ; MOE ; SAFEA ; LZU
语种: 英语
DOI: 10.1016/j.fcr.2017.01.017
ISSN号: 0378-4290
WOS记录号: WOS:000397361800016
IR记录号: WOS:000397361800016
第一机构:
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/189931
Appears in Collections:生命科学学院_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 14LIFE

Recommended Citation:
Wang, T,Du, YL,He, J,et al. Recently-released genotypes of naked oat (Avena nuda L.) out-yield early releases under water-limited conditions by greater reproductive allocation and desiccation tolerance[J]. FIELD CROPS RESEARCH,2017,204:169-179.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Altmetrics Score
 
Google Scholar
Similar articles in Google Scholar
[Wang, T]'s Articles
[Du, YL]'s Articles
[He, J]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wang, T]‘s Articles
[Du, YL]‘s Articles
[He, J]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Email:
Passwd
验 证:
换一张
Have you forgotten your password? Log In
Copyright © 2007-2018  兰州大学 - Feedback
Powered by CSpace