Radiation Interception, Chlorophyll Fluorescence and Senescence of Flag leaves in Winter Wheat under Supplemental Irrigation

Abstract Water shortage threatens agricultural sustainability in China, effective water-saving technologies urgently need to be developed. In this study, five treatments were conducted: rainfed (W0), a local supplemental irrigation (SI) practice (W1), and three treatments in which soil water content...

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Autores principales:	Jianguo Man, Zhenwen Yu, Yu Shi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/008f7f9035a24c5dae8989982eb70153
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spelling	oai:doaj.org-article:008f7f9035a24c5dae8989982eb701532021-12-02T11:41:00ZRadiation Interception, Chlorophyll Fluorescence and Senescence of Flag leaves in Winter Wheat under Supplemental Irrigation10.1038/s41598-017-07414-22045-2322https://doaj.org/article/008f7f9035a24c5dae8989982eb701532017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07414-2https://doaj.org/toc/2045-2322Abstract Water shortage threatens agricultural sustainability in China, effective water-saving technologies urgently need to be developed. In this study, five treatments were conducted: rainfed (W0), a local supplemental irrigation (SI) practice (W1), and three treatments in which soil water content was tested prior to SI, specifically at 0–20 (W2), 0–40 (W3) and 0–60 cm (W4) soil layers. Soil water consumption in W3 had no differ with W2 but was higher than W1 and W4. Crop evapotranspiration in W1, W3 and W4 treatments were higher than that in W2. W3 treatment had higher leaf area index than W1 and W4 at later grain filling stages. The mean photosynthetically active radiation capture ratio in W3, especially at 20, 40 and 60 cm plant heights, were significantly higher than those in W1, W2 and W4. The chlorophyll content index, actual photosynthetic activities, catalase and superoxide dismutase activities of flag leaves from W3 were the highest after the middle grain filling stages. W3 treatment obtained the highest grain yield (9169 kg ha−1) and water use efficiency (20.8 kg ha−1 mm−1) in the two seasons. These benefits likely accrued through created a suitable soil moisture environment in W3 treatment.Jianguo ManZhenwen YuYu ShiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jianguo Man Zhenwen Yu Yu Shi Radiation Interception, Chlorophyll Fluorescence and Senescence of Flag leaves in Winter Wheat under Supplemental Irrigation
description	Abstract Water shortage threatens agricultural sustainability in China, effective water-saving technologies urgently need to be developed. In this study, five treatments were conducted: rainfed (W0), a local supplemental irrigation (SI) practice (W1), and three treatments in which soil water content was tested prior to SI, specifically at 0–20 (W2), 0–40 (W3) and 0–60 cm (W4) soil layers. Soil water consumption in W3 had no differ with W2 but was higher than W1 and W4. Crop evapotranspiration in W1, W3 and W4 treatments were higher than that in W2. W3 treatment had higher leaf area index than W1 and W4 at later grain filling stages. The mean photosynthetically active radiation capture ratio in W3, especially at 20, 40 and 60 cm plant heights, were significantly higher than those in W1, W2 and W4. The chlorophyll content index, actual photosynthetic activities, catalase and superoxide dismutase activities of flag leaves from W3 were the highest after the middle grain filling stages. W3 treatment obtained the highest grain yield (9169 kg ha−1) and water use efficiency (20.8 kg ha−1 mm−1) in the two seasons. These benefits likely accrued through created a suitable soil moisture environment in W3 treatment.
format	article
author	Jianguo Man Zhenwen Yu Yu Shi
author_facet	Jianguo Man Zhenwen Yu Yu Shi
author_sort	Jianguo Man
title	Radiation Interception, Chlorophyll Fluorescence and Senescence of Flag leaves in Winter Wheat under Supplemental Irrigation
title_short	Radiation Interception, Chlorophyll Fluorescence and Senescence of Flag leaves in Winter Wheat under Supplemental Irrigation
title_full	Radiation Interception, Chlorophyll Fluorescence and Senescence of Flag leaves in Winter Wheat under Supplemental Irrigation
title_fullStr	Radiation Interception, Chlorophyll Fluorescence and Senescence of Flag leaves in Winter Wheat under Supplemental Irrigation
title_full_unstemmed	Radiation Interception, Chlorophyll Fluorescence and Senescence of Flag leaves in Winter Wheat under Supplemental Irrigation
title_sort	radiation interception, chlorophyll fluorescence and senescence of flag leaves in winter wheat under supplemental irrigation
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/008f7f9035a24c5dae8989982eb70153
work_keys_str_mv	AT jianguoman radiationinterceptionchlorophyllfluorescenceandsenescenceofflagleavesinwinterwheatundersupplementalirrigation AT zhenwenyu radiationinterceptionchlorophyllfluorescenceandsenescenceofflagleavesinwinterwheatundersupplementalirrigation AT yushi radiationinterceptionchlorophyllfluorescenceandsenescenceofflagleavesinwinterwheatundersupplementalirrigation
_version_	1718395440015081472

Radiation Interception, Chlorophyll Fluorescence and Senescence of Flag leaves in Winter Wheat under Supplemental Irrigation

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