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Physiological mechanisms contributing to increased water-use efficiency in winter wheat under organic fertilization
Wang, Linlin1,2; Wang, Shiwen1; Chen, Wei3; Li, Hongbing1; Deng, Xiping1; Deng, XP (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China.
SubtypeArticle
2017
Source PublicationPLOS ONE
ISSN1932-6203
description.correspondentemaildengxp@ms.iswc.ac.cn
Volume12Issue:6
AbstractImproving the efficiency of resource utilization has received increasing research attention in recent years. In this study, we explored the potential physiological mechanisms underlying improved grain yield and water-use efficiency of winter wheat (Triticum aestivum L.) following organic fertilizer application. Two wheat cultivars, ChangHan58 (CH58) and XiNong9871 (XN9871), were grown under the same nitrogen (N) fertilizer rate (urea-N, CK; and manure plus urea-N, M) and under two watering regimes (WW, well-watered; and WS, water stress) imposed after anthesis. The M fertilizer treatment had a higher P-n and lower g(s) and T-r than CK under both water conditions, in particular, it significantly increased WRC and psi(w), and decreased EWLR and MDA under WS. Also, the M treatment increased post-anthesis N uptake by 81.4 and 16.4% under WS and WW, thus increasing post-anthesis photosynthetic capacity and delaying leaf senescence. Consequently, the M treatment increased post-anthesis DM accumulation under WS and WW by 51.5 and 29.6%, WUEB by 44.5 and 50.9%, grain number per plant by 11.5 and 12.2% and 1000-grain weight by 7.3 and 3.6%, respectively, compared with CK. The grain yield under M treatment increased by 23 and 15%, and water use efficiency (WUEg) by 25 and 23%, respectively. The increased WUE under organic fertilizer treatment was due to elevated photosynthesis and decreased Tr and gs. Our results suggest that the organic fertilizer treatment enabled plants to use water more efficiently under drought stress.
Subject AreaScience & Technology - Other Topics
DOI10.1371/journal.pone.0180205
URL查看原文
Indexed BySCI
Publication PlaceSAN FRANCISCO
Language英语
WOS IDWOS:000404608300126
PublisherPUBLIC LIBRARY SCIENCE
Funding OrganizationNational Basic Research Program of China [2015CB150402]; Ministry of Science and Technology of the People's Republic of China; National Natural Science Foundation of China [51479189] ; National Basic Research Program of China [2015CB150402]; Ministry of Science and Technology of the People's Republic of China; National Natural Science Foundation of China [51479189]
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/7975
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorDeng, XP (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China
2.Northwest A&F Univ, Coll Life Sci, Yangling, Shaanxi, Peoples R China
3.Baoji Univ Arts & Sci, Key Lab Disaster Monitoring & Mech Simulating Sha, Baoji, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Wang, Linlin,Wang, Shiwen,Chen, Wei,et al. Physiological mechanisms contributing to increased water-use efficiency in winter wheat under organic fertilization[J]. PLOS ONE,2017,12(6).
APA Wang, Linlin,Wang, Shiwen,Chen, Wei,Li, Hongbing,Deng, Xiping,&Deng, XP .(2017).Physiological mechanisms contributing to increased water-use efficiency in winter wheat under organic fertilization.PLOS ONE,12(6).
MLA Wang, Linlin,et al."Physiological mechanisms contributing to increased water-use efficiency in winter wheat under organic fertilization".PLOS ONE 12.6(2017).
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