Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain

Abstract Wheat yield components vary between different ecological regions and yield levels. Grain number responses to pre-anthesis dry matter (DM) and nitrogen (N) in increasing yield were always investigated in spike organs, neglecting the effect of non-spike organ nutrition or overall distribution...

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Autores principales:	Jianzhao Duan, Yapeng Wu, Yi Zhou, Xingxu Ren, Yunhui Shao, Wei Feng, Yunji Zhu, Yonghua Wang, Tiancai Guo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1d269ea0f5d649cdaa6922faf32d756c
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spelling	oai:doaj.org-article:1d269ea0f5d649cdaa6922faf32d756c2021-12-02T11:41:15ZGrain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain10.1038/s41598-018-25608-02045-2322https://doaj.org/article/1d269ea0f5d649cdaa6922faf32d756c2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25608-0https://doaj.org/toc/2045-2322Abstract Wheat yield components vary between different ecological regions and yield levels. Grain number responses to pre-anthesis dry matter (DM) and nitrogen (N) in increasing yield were always investigated in spike organs, neglecting the effect of non-spike organ nutrition or overall distribution. This paper determined the relationships between grain number and pre-anthesis DM and N in spike and non-spike organs under different yield levels, with using two sorts of field experiments (different water-nitrogen modes and cultivation management patterns) from 2012–2015 in Huang-Huai plain. The results indicated that improving yield under yield of <7500 kg ha−1 depends on increasing grain number per spike (GNs) or spike number (SN) or both, increased yield under higher yield of >7500 kg ha−1 mainly depends on GNs. GNs showed significant positive relationships with above-ground DM accumulation from jointing to anthesis under high or low yield levels. Rapid DM growth in spring achieves higher GNs. Spike and non-spike DM and N contents both demonstrated strong positive relationships with GNs, spike DM distribution also shows a positive correlation, but spike N distribution ratio show negatively correlation with GNs. Improved N distribution in non-spike organs and DM partition in spike organs conduce to increasing GNs.Jianzhao DuanYapeng WuYi ZhouXingxu RenYunhui ShaoWei FengYunji ZhuYonghua WangTiancai GuoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jianzhao Duan Yapeng Wu Yi Zhou Xingxu Ren Yunhui Shao Wei Feng Yunji Zhu Yonghua Wang Tiancai Guo Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain
description	Abstract Wheat yield components vary between different ecological regions and yield levels. Grain number responses to pre-anthesis dry matter (DM) and nitrogen (N) in increasing yield were always investigated in spike organs, neglecting the effect of non-spike organ nutrition or overall distribution. This paper determined the relationships between grain number and pre-anthesis DM and N in spike and non-spike organs under different yield levels, with using two sorts of field experiments (different water-nitrogen modes and cultivation management patterns) from 2012–2015 in Huang-Huai plain. The results indicated that improving yield under yield of <7500 kg ha−1 depends on increasing grain number per spike (GNs) or spike number (SN) or both, increased yield under higher yield of >7500 kg ha−1 mainly depends on GNs. GNs showed significant positive relationships with above-ground DM accumulation from jointing to anthesis under high or low yield levels. Rapid DM growth in spring achieves higher GNs. Spike and non-spike DM and N contents both demonstrated strong positive relationships with GNs, spike DM distribution also shows a positive correlation, but spike N distribution ratio show negatively correlation with GNs. Improved N distribution in non-spike organs and DM partition in spike organs conduce to increasing GNs.
format	article
author	Jianzhao Duan Yapeng Wu Yi Zhou Xingxu Ren Yunhui Shao Wei Feng Yunji Zhu Yonghua Wang Tiancai Guo
author_facet	Jianzhao Duan Yapeng Wu Yi Zhou Xingxu Ren Yunhui Shao Wei Feng Yunji Zhu Yonghua Wang Tiancai Guo
author_sort	Jianzhao Duan
title	Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain
title_short	Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain
title_full	Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain
title_fullStr	Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain
title_full_unstemmed	Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain
title_sort	grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the huang-huai plain
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/1d269ea0f5d649cdaa6922faf32d756c
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Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain

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