Contribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in Shaanxi Province, China

Abstract Eight dryland winter wheat cultivars (Triticum aestivum L.), which were widely cultivated from the 1940s to the 2010s in Shaanxi Province, China, were selected and grown in plots, and two water treatments (irrigation and drought) were used to identify the contribution of ears, leaves and st...

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Autores principales:	Yingying Sun, Suiqi Zhang, Jiakun Yan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dd291231593c44f69817d2c5b3d163f9
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spelling	oai:doaj.org-article:dd291231593c44f69817d2c5b3d163f92021-12-02T14:27:02ZContribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in Shaanxi Province, China10.1038/s41598-021-82718-y2045-2322https://doaj.org/article/dd291231593c44f69817d2c5b3d163f92021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82718-yhttps://doaj.org/toc/2045-2322Abstract Eight dryland winter wheat cultivars (Triticum aestivum L.), which were widely cultivated from the 1940s to the 2010s in Shaanxi Province, China, were selected and grown in plots, and two water treatments (irrigation and drought) were used to identify the contribution of ears, leaves and stems to grain weight and grain number associated with cultivar replacement. The plant height and stem dry weight of the dryland wheat decreased significantly during the cultivar replacement process, but there was a remarkable increase in the dry matter translocation of stems under irrigation. Shaded-ear and defoliation treatment could decrease the grain number and grain weight, and the grain weight was more influenced. Both the leaf and ear are important photosynthetic sources for dryland wheat, and the contribution of ear assimilates showed a significant increase over time; however, the contribution of leaf assimilates showed a negative correlation with cultivation over time. The accumulation of stem assimilates and ear photosynthesis both increased the grain weight potential. In the future breeding process, cultivars with more assimilates stored in the stem and greater assimilative capacity of ears, especially a greater contribution of ear assimilates, are expected to increase the grain yield.Yingying SunSuiqi ZhangJiakun YanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yingying Sun Suiqi Zhang Jiakun Yan Contribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in Shaanxi Province, China
description	Abstract Eight dryland winter wheat cultivars (Triticum aestivum L.), which were widely cultivated from the 1940s to the 2010s in Shaanxi Province, China, were selected and grown in plots, and two water treatments (irrigation and drought) were used to identify the contribution of ears, leaves and stems to grain weight and grain number associated with cultivar replacement. The plant height and stem dry weight of the dryland wheat decreased significantly during the cultivar replacement process, but there was a remarkable increase in the dry matter translocation of stems under irrigation. Shaded-ear and defoliation treatment could decrease the grain number and grain weight, and the grain weight was more influenced. Both the leaf and ear are important photosynthetic sources for dryland wheat, and the contribution of ear assimilates showed a significant increase over time; however, the contribution of leaf assimilates showed a negative correlation with cultivation over time. The accumulation of stem assimilates and ear photosynthesis both increased the grain weight potential. In the future breeding process, cultivars with more assimilates stored in the stem and greater assimilative capacity of ears, especially a greater contribution of ear assimilates, are expected to increase the grain yield.
format	article
author	Yingying Sun Suiqi Zhang Jiakun Yan
author_facet	Yingying Sun Suiqi Zhang Jiakun Yan
author_sort	Yingying Sun
title	Contribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in Shaanxi Province, China
title_short	Contribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in Shaanxi Province, China
title_full	Contribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in Shaanxi Province, China
title_fullStr	Contribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in Shaanxi Province, China
title_full_unstemmed	Contribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in Shaanxi Province, China
title_sort	contribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in shaanxi province, china
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dd291231593c44f69817d2c5b3d163f9
work_keys_str_mv	AT yingyingsun contributionofgreenorganstograinweightindrylandwheatfromthe1940stothe2010sinshaanxiprovincechina AT suiqizhang contributionofgreenorganstograinweightindrylandwheatfromthe1940stothe2010sinshaanxiprovincechina AT jiakunyan contributionofgreenorganstograinweightindrylandwheatfromthe1940stothe2010sinshaanxiprovincechina
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Contribution of green organs to grain weight in dryland wheat from the 1940s to the 2010s in Shaanxi Province, China

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