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Responses of nitrogen efficiency and antioxidant system of summer maize to waterlogging stress under different tillage

Waterlogging was one of the main abiotic stresses affecting maize yield and growth in the North China Plain, while ridge tillage effectually improved soil environment, enhanced crop stress resistance to waterlogging, and increased grain yield of waterlogged maize. In order to explore the responses o...

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Autores principales: Ren, Baizhao, Hu, Juan, Liu, Peng, Zhao, Bin, Zhang, Jiwang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8320525/
https://www.ncbi.nlm.nih.gov/pubmed/34395080
http://dx.doi.org/10.7717/peerj.11834
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author Ren, Baizhao
Hu, Juan
Liu, Peng
Zhao, Bin
Zhang, Jiwang
author_facet Ren, Baizhao
Hu, Juan
Liu, Peng
Zhao, Bin
Zhang, Jiwang
author_sort Ren, Baizhao
collection PubMed
description Waterlogging was one of the main abiotic stresses affecting maize yield and growth in the North China Plain, while ridge tillage effectually improved soil environment, enhanced crop stress resistance to waterlogging, and increased grain yield of waterlogged maize. In order to explore the responses of nitrogen (N) efficiency and antioxidant system of summer maize to waterlogging stress under different tillage, a field experiment was conducted to explore N use efficiency, leaf activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), and malondialdehyde (MDA) content of waterlogged maize Denghai 605 (DH605) and Zhengdan 958 (ZD958) under different tillage system (ridge planting and flat planting). Our results showed that ridge tillage was beneficial to ameliorate waterlogging damages on antioxidant system by increasing SOD, POD, and CAT activities, and decreasing MDA content. Moreover, ridge tillage significantly increased N efficiency of waterlogged maize. N translocation amount (NTA), N translocation efficiency (NTE), N contribution proportion (NCP), N harvest index (NHI), and N use efficiency (NUE) of waterlogging treatment under ridge planting system (W-V3+R) for DH605 was increased by 108%, 69%, 60%, 8% and 16%, while ZD958 increased by 248%, 132%, 146%, 13% and 16%, respectively, compared to those of waterlogging treatment under flat planting system (W-V3). Ultimately, ridge tillage led to a significant yield improvement by 39% and 50% for DH605 and ZD958, respectively, compared to that of W-V3. In conclusion, ridge tillage was conducive to retard leaf aging, and enhance nitrogen efficiency, thereby resulting in a yield improvement of waterlogged summer maize.
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spelling pubmed-83205252021-08-13 Responses of nitrogen efficiency and antioxidant system of summer maize to waterlogging stress under different tillage Ren, Baizhao Hu, Juan Liu, Peng Zhao, Bin Zhang, Jiwang PeerJ Agricultural Science Waterlogging was one of the main abiotic stresses affecting maize yield and growth in the North China Plain, while ridge tillage effectually improved soil environment, enhanced crop stress resistance to waterlogging, and increased grain yield of waterlogged maize. In order to explore the responses of nitrogen (N) efficiency and antioxidant system of summer maize to waterlogging stress under different tillage, a field experiment was conducted to explore N use efficiency, leaf activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), and malondialdehyde (MDA) content of waterlogged maize Denghai 605 (DH605) and Zhengdan 958 (ZD958) under different tillage system (ridge planting and flat planting). Our results showed that ridge tillage was beneficial to ameliorate waterlogging damages on antioxidant system by increasing SOD, POD, and CAT activities, and decreasing MDA content. Moreover, ridge tillage significantly increased N efficiency of waterlogged maize. N translocation amount (NTA), N translocation efficiency (NTE), N contribution proportion (NCP), N harvest index (NHI), and N use efficiency (NUE) of waterlogging treatment under ridge planting system (W-V3+R) for DH605 was increased by 108%, 69%, 60%, 8% and 16%, while ZD958 increased by 248%, 132%, 146%, 13% and 16%, respectively, compared to those of waterlogging treatment under flat planting system (W-V3). Ultimately, ridge tillage led to a significant yield improvement by 39% and 50% for DH605 and ZD958, respectively, compared to that of W-V3. In conclusion, ridge tillage was conducive to retard leaf aging, and enhance nitrogen efficiency, thereby resulting in a yield improvement of waterlogged summer maize. PeerJ Inc. 2021-07-26 /pmc/articles/PMC8320525/ /pubmed/34395080 http://dx.doi.org/10.7717/peerj.11834 Text en © 2021 Ren et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://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
Ren, Baizhao
Hu, Juan
Liu, Peng
Zhao, Bin
Zhang, Jiwang
Responses of nitrogen efficiency and antioxidant system of summer maize to waterlogging stress under different tillage
title Responses of nitrogen efficiency and antioxidant system of summer maize to waterlogging stress under different tillage
title_full Responses of nitrogen efficiency and antioxidant system of summer maize to waterlogging stress under different tillage
title_fullStr Responses of nitrogen efficiency and antioxidant system of summer maize to waterlogging stress under different tillage
title_full_unstemmed Responses of nitrogen efficiency and antioxidant system of summer maize to waterlogging stress under different tillage
title_short Responses of nitrogen efficiency and antioxidant system of summer maize to waterlogging stress under different tillage
title_sort responses of nitrogen efficiency and antioxidant system of summer maize to waterlogging stress under different tillage
topic Agricultural Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8320525/
https://www.ncbi.nlm.nih.gov/pubmed/34395080
http://dx.doi.org/10.7717/peerj.11834
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