Effects of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica

Abstract Isatis indigotica is a commercial medicinal crop that is widely cultivated with high water and nutrient application, in the arid areas of northwest China. Rational irrigation and nitrogen application are key factors for successful crop management. The objective of this study was to determin...

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Autores principales: Yucai Wang, Xiucheng He, Fuqiang Li, Haoliang Deng, Zeyi Wang, Caixia Huang, Yi Han, Yuchun Ba, Lian Lei, Changlong Zhang
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/e0b5f1ce6caa4a678212b26ff0d5e73e
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spelling oai:doaj.org-article:e0b5f1ce6caa4a678212b26ff0d5e73e2021-12-02T17:51:31ZEffects of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica10.1038/s41598-021-96747-02045-2322https://doaj.org/article/e0b5f1ce6caa4a678212b26ff0d5e73e2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96747-0https://doaj.org/toc/2045-2322Abstract Isatis indigotica is a commercial medicinal crop that is widely cultivated with high water and nutrient application, in the arid areas of northwest China. Rational irrigation and nitrogen application are key factors for successful crop management. The objective of this study was to determine the effect of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica produced in northwestern China. Field trials were conducted for 2 consecutive years at an irrigation test station. Data on photosynthetic parameters, yield, and quality were collected from individual Isatis indigotica for each treatment during 2018–2019. The application of nitrogen significantly increased photosynthetic rates and yield under the same irrigation conditions. However, the yields were reduced in the excess water treatments (W3N1 and W3N2) and in the excess nitrogen treatments (W1N3, W2N3, and W3N3) in contrast to the optimum W2N2 treatment. Moreover, the quality indicators of the W2N2 treatment decreased compared with CK, which was due to water stress and more photoassimilates being available to the roots, but the effective quality index value could be effectively improved by greatly increasing the yield.Yucai WangXiucheng HeFuqiang LiHaoliang DengZeyi WangCaixia HuangYi HanYuchun BaLian LeiChanglong ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Yucai Wang
Xiucheng He
Fuqiang Li
Haoliang Deng
Zeyi Wang
Caixia Huang
Yi Han
Yuchun Ba
Lian Lei
Changlong Zhang
Effects of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica
description Abstract Isatis indigotica is a commercial medicinal crop that is widely cultivated with high water and nutrient application, in the arid areas of northwest China. Rational irrigation and nitrogen application are key factors for successful crop management. The objective of this study was to determine the effect of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica produced in northwestern China. Field trials were conducted for 2 consecutive years at an irrigation test station. Data on photosynthetic parameters, yield, and quality were collected from individual Isatis indigotica for each treatment during 2018–2019. The application of nitrogen significantly increased photosynthetic rates and yield under the same irrigation conditions. However, the yields were reduced in the excess water treatments (W3N1 and W3N2) and in the excess nitrogen treatments (W1N3, W2N3, and W3N3) in contrast to the optimum W2N2 treatment. Moreover, the quality indicators of the W2N2 treatment decreased compared with CK, which was due to water stress and more photoassimilates being available to the roots, but the effective quality index value could be effectively improved by greatly increasing the yield.
format article
author Yucai Wang
Xiucheng He
Fuqiang Li
Haoliang Deng
Zeyi Wang
Caixia Huang
Yi Han
Yuchun Ba
Lian Lei
Changlong Zhang
author_facet Yucai Wang
Xiucheng He
Fuqiang Li
Haoliang Deng
Zeyi Wang
Caixia Huang
Yi Han
Yuchun Ba
Lian Lei
Changlong Zhang
author_sort Yucai Wang
title Effects of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica
title_short Effects of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica
title_full Effects of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica
title_fullStr Effects of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica
title_full_unstemmed Effects of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of Isatis indigotica
title_sort effects of water and nitrogen coupling on the photosynthetic characteristics, yield, and quality of isatis indigotica
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/e0b5f1ce6caa4a678212b26ff0d5e73e
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