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Leaf photosynthetic function duration during yield formation of large-spike wheat in rainfed cropping systems

Improving photosynthetic capacity significantly affects the yield of wheat (Triticum aestivum L.) in rainfed regions. In this study, the physiological characteristics of eight large-spike wheat lines were compared with a multiple-spike cultivar as a control (CK) in a field over two consecutive seaso...

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Autores principales: Wang, Lifang, Sun, Jutao, Wang, Chenyang, Shangguan, Zhouping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6166621/
https://www.ncbi.nlm.nih.gov/pubmed/30280014
http://dx.doi.org/10.7717/peerj.5532
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author Wang, Lifang
Sun, Jutao
Wang, Chenyang
Shangguan, Zhouping
author_facet Wang, Lifang
Sun, Jutao
Wang, Chenyang
Shangguan, Zhouping
author_sort Wang, Lifang
collection PubMed
description Improving photosynthetic capacity significantly affects the yield of wheat (Triticum aestivum L.) in rainfed regions. In this study, the physiological characteristics of eight large-spike wheat lines were compared with a multiple-spike cultivar as a control (CK) in a field over two consecutive seasons: 2010–2012. The tillering peak was 7–21 d after returning green for line 2040, the average rate of decline of relative water content was slower, and the average duration time of photosynthetic rate was longer than CK in vitro. There was a strong linear and positive correlation between photosynthetic rate and root activity at jointing, flowering, and grain-filling stages. In addition, average yields were higher in large-spike lines than CK (multiple-spike cultivar). The results suggest that large-spike lines might have greater water retaining capacity during yield formation under rainfed conditions.
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spelling pubmed-61666212018-10-02 Leaf photosynthetic function duration during yield formation of large-spike wheat in rainfed cropping systems Wang, Lifang Sun, Jutao Wang, Chenyang Shangguan, Zhouping PeerJ Agricultural Science Improving photosynthetic capacity significantly affects the yield of wheat (Triticum aestivum L.) in rainfed regions. In this study, the physiological characteristics of eight large-spike wheat lines were compared with a multiple-spike cultivar as a control (CK) in a field over two consecutive seasons: 2010–2012. The tillering peak was 7–21 d after returning green for line 2040, the average rate of decline of relative water content was slower, and the average duration time of photosynthetic rate was longer than CK in vitro. There was a strong linear and positive correlation between photosynthetic rate and root activity at jointing, flowering, and grain-filling stages. In addition, average yields were higher in large-spike lines than CK (multiple-spike cultivar). The results suggest that large-spike lines might have greater water retaining capacity during yield formation under rainfed conditions. PeerJ Inc. 2018-09-28 /pmc/articles/PMC6166621/ /pubmed/30280014 http://dx.doi.org/10.7717/peerj.5532 Text en ©2018 Wang et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Agricultural Science
Wang, Lifang
Sun, Jutao
Wang, Chenyang
Shangguan, Zhouping
Leaf photosynthetic function duration during yield formation of large-spike wheat in rainfed cropping systems
title Leaf photosynthetic function duration during yield formation of large-spike wheat in rainfed cropping systems
title_full Leaf photosynthetic function duration during yield formation of large-spike wheat in rainfed cropping systems
title_fullStr Leaf photosynthetic function duration during yield formation of large-spike wheat in rainfed cropping systems
title_full_unstemmed Leaf photosynthetic function duration during yield formation of large-spike wheat in rainfed cropping systems
title_short Leaf photosynthetic function duration during yield formation of large-spike wheat in rainfed cropping systems
title_sort leaf photosynthetic function duration during yield formation of large-spike wheat in rainfed cropping systems
topic Agricultural Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6166621/
https://www.ncbi.nlm.nih.gov/pubmed/30280014
http://dx.doi.org/10.7717/peerj.5532
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