Relationships between grain yield and agronomic traits of rice in southern China

ABSTRACT Field experiments were conducted to evaluate the grain yield and agronomic traits of inbred and hybrid rice (Oryza sativa L.) ‘Yuxiangyouzhan’ and ‘Shenliangyou 58 xiangyouzhan’ at 11 different planting sites during 2013-2017 in Southern China. The gr...

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Autores principales:	Zhao,Hua, Mo,Zhaowen, Lin,Qingshan, Pan,Shenggang, Duan,Meiyang, Tian,Hua, Wang,Shuli, Tang,Xiangru
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2020
Materias:	Agronomic traits China grain yield rice.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000100072
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spelling	oai:scielo:S0718-583920200001000722020-02-25Relationships between grain yield and agronomic traits of rice in southern ChinaZhao,HuaMo,ZhaowenLin,QingshanPan,ShenggangDuan,MeiyangTian,HuaWang,ShuliTang,Xiangru Agronomic traits China grain yield rice. ABSTRACT Field experiments were conducted to evaluate the grain yield and agronomic traits of inbred and hybrid rice (Oryza sativa L.) ‘Yuxiangyouzhan’ and ‘Shenliangyou 58 xiangyouzhan’ at 11 different planting sites during 2013-2017 in Southern China. The grain yield, growth period, panicle number m-2, productive tiller percentage, plant height, panicle length, grain number per panicle, filled grain number per panicle, filled grain percentage, and grain weight were evaluated. Results indicated that ‘Shenliangyou 58 xiangyouzhan’ produced higher grain yields than ‘Yuxiangyouzhan’ which was attributed to high grain weight and panicle length. Grain yield showed an increasing trend during 2013-2017 and the yield gaps among different years were attributed to differences in plant height, filled grain percentage and grain weight. The differences in grain yield among sites were mostly due to the combination effect of the agronomic traits which was greatly affected by the different climate conditions. The grain yield was significantly and positively correlated with the plant height, grain number m-2, filled grain number per panicle, filled grain percentage and grain weight. Moreover, principal components analysis (PCA) suggested that grain number per panicle and filled grain number per panicle are critical parameters attributed to grain productivity. Therefore, flowering and post-flowering stage is the most critical in this regard to improve the grain number and filled grain number per panicle to get better yields in the agro-climatic conditions of southern China.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.80 n.1 20202020-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000100072en10.4067/S0718-58392020000100072
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Agronomic traits China grain yield rice.
spellingShingle	Agronomic traits China grain yield rice. Zhao,Hua Mo,Zhaowen Lin,Qingshan Pan,Shenggang Duan,Meiyang Tian,Hua Wang,Shuli Tang,Xiangru Relationships between grain yield and agronomic traits of rice in southern China
description	ABSTRACT Field experiments were conducted to evaluate the grain yield and agronomic traits of inbred and hybrid rice (Oryza sativa L.) ‘Yuxiangyouzhan’ and ‘Shenliangyou 58 xiangyouzhan’ at 11 different planting sites during 2013-2017 in Southern China. The grain yield, growth period, panicle number m-2, productive tiller percentage, plant height, panicle length, grain number per panicle, filled grain number per panicle, filled grain percentage, and grain weight were evaluated. Results indicated that ‘Shenliangyou 58 xiangyouzhan’ produced higher grain yields than ‘Yuxiangyouzhan’ which was attributed to high grain weight and panicle length. Grain yield showed an increasing trend during 2013-2017 and the yield gaps among different years were attributed to differences in plant height, filled grain percentage and grain weight. The differences in grain yield among sites were mostly due to the combination effect of the agronomic traits which was greatly affected by the different climate conditions. The grain yield was significantly and positively correlated with the plant height, grain number m-2, filled grain number per panicle, filled grain percentage and grain weight. Moreover, principal components analysis (PCA) suggested that grain number per panicle and filled grain number per panicle are critical parameters attributed to grain productivity. Therefore, flowering and post-flowering stage is the most critical in this regard to improve the grain number and filled grain number per panicle to get better yields in the agro-climatic conditions of southern China.
author	Zhao,Hua Mo,Zhaowen Lin,Qingshan Pan,Shenggang Duan,Meiyang Tian,Hua Wang,Shuli Tang,Xiangru
author_facet	Zhao,Hua Mo,Zhaowen Lin,Qingshan Pan,Shenggang Duan,Meiyang Tian,Hua Wang,Shuli Tang,Xiangru
author_sort	Zhao,Hua
title	Relationships between grain yield and agronomic traits of rice in southern China
title_short	Relationships between grain yield and agronomic traits of rice in southern China
title_full	Relationships between grain yield and agronomic traits of rice in southern China
title_fullStr	Relationships between grain yield and agronomic traits of rice in southern China
title_full_unstemmed	Relationships between grain yield and agronomic traits of rice in southern China
title_sort	relationships between grain yield and agronomic traits of rice in southern china
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000100072
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Relationships between grain yield and agronomic traits of rice in southern China

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