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Grain yield and associated photosynthesis characteristics during dryland winter wheat cultivar replacement since 1940 on the Loess Plateau as affected by seeding rate
Sun, Yingying1,2; Yan, Xiaojuan1; Zhang, Suiqi1,4; Wang, Nan1,4; Zhang, SQ (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
SubtypeArticle
2017
Source PublicationEMIRATES JOURNAL OF FOOD AND AGRICULTURE
ISSN2079-052X
description.correspondentemailsqzhang@ms.iswc.ac.cn
Volume29Issue:1Pages:51-58
AbstractAn experiment was conducted to verify how the grain yield and associated photosynthesis characteristics of wheat respond to seeding rate with cultivar replacement. Seven wheat cultivars released from 1940 to 2004 that were once widely grown on the Loess Plateau were grown in field experiments during the 2011-2012 growing season at the Changwu experiment station in China using three seeding rates (100, 250, and 350 seeds m(-2)), using a randomized complete block with a split-plot design and three blocks. The grain yield increased linearly with cultivar development in all seeding rate treatments, with annual genetic gains ranging from 0.65% to 1.29%. The cultivars released after the 1980s were less sensitive to seeding rate and had better population regulation. The improvements in the harvest index and thousand grain weights of the modern cultivars were significantly and positively correlated with the grain yield. The photosynthetic rate of the flag leaf and the leaf area index at anthesis consistently increased with cultivar replacement, contributing more to the thousand-grain weight and resulting in grain yield increases. Diffuse non-interceptance at anthesis resulted in opposite, stable trends with time. One reason to adapt modern cultivars for modern cultivation is their lower sensitivity to seeding rate. Thus, larger sinks for the grains and the optimization of plant types for light interception should be given greater consideration in dryland wheat breeding on the Loess Plateau.
KeywordDryland Wheat Genetic Gain Seeding Density Light Interception Ability
Subject AreaAgriculture ; Food Science & Technology
DOI10.9755/ejfa.2016-06-731
URL查看原文
Indexed BySCI
Publication PlaceAL AIN
Language英语
WOS IDWOS:000396588900007
PublisherUNITED ARAB EMIRATES UNIV
Funding OrganizationNational Science-technology Support Plan Projects [2015BAD22B01]; National Science Foundation [31500320] ; National Science-technology Support Plan Projects [2015BAD22B01]; National Science Foundation [31500320]
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8066
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorZhang, SQ (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
2.Shaanxi Prov Land Engn Construct Grp Co Ltd, Shaanxi Prov Land Reclamat Engn Technol Res Ctr, Xian 710075, Peoples R China
3.Minist Land & Resources China, Key Lab Degraded & Unused Land Consolidat Engn, Xian 710075, Peoples R China
4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
Recommended Citation
GB/T 7714
Sun, Yingying,Yan, Xiaojuan,Zhang, Suiqi,et al. Grain yield and associated photosynthesis characteristics during dryland winter wheat cultivar replacement since 1940 on the Loess Plateau as affected by seeding rate[J]. EMIRATES JOURNAL OF FOOD AND AGRICULTURE,2017,29(1):51-58.
APA Sun, Yingying,Yan, Xiaojuan,Zhang, Suiqi,Wang, Nan,&Zhang, SQ .(2017).Grain yield and associated photosynthesis characteristics during dryland winter wheat cultivar replacement since 1940 on the Loess Plateau as affected by seeding rate.EMIRATES JOURNAL OF FOOD AND AGRICULTURE,29(1),51-58.
MLA Sun, Yingying,et al."Grain yield and associated photosynthesis characteristics during dryland winter wheat cultivar replacement since 1940 on the Loess Plateau as affected by seeding rate".EMIRATES JOURNAL OF FOOD AND AGRICULTURE 29.1(2017):51-58.
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