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	The impact of free-air CO2 enrichment (FACE) and nitrogen supply on grain quality of rice
	Yang, Lianxin; Wang, Yulong; Dong, Guichun; Gu, Hui; Huang, Jianye; Zhu, Jianguo; Yang, Hongjian; Liu, Gang; Han, Yong
刊名	FIELD CROPS RESEARCH
	2007-06-05
卷号	102期号:2页码:128-140
关键词	free-air CO2 enrichment (FACE) global change quality rice grain yield
ISSN号	0378-4290
DOI	10.1016/j.fcr.2007.03.006
通讯作者	Wang, Yulong(lxyang@yzu.edu.cn)
英文摘要	Because CO2 is needed for plant photosynthesis, the increase in atmospheric CO2 concentration ([CO2]) has the potential to enhance the growth and yield of rice (Oryza sativa L.), but little is known regarding the impact of elevated [CO2] On grain quality of rice, especially under different N availability. In order to investigate the interactive effects of [CO2] and N supply on rice quality, we conducted a free-air CO2 enrichment (FACE) experiment at Wuxi, Jiangsu, China, in 2001-2003. A long-duration rice japonica with large particle (cv. Wuxiangging 14) was grown at ambient or elevated (ca. 200 mu mol mol(-1) above ambient) [CO2] under three levels of N: low (LN, 15 g N m(2)), medium (MN, 25 g N m(2)) and high N (HN, 35 g N m(2) (2002, 2003)). The MN level was similar to that recommended to local farmers. FACE significant increased rough (+12.8%), brown (+13.2%) and milled rice yield (+10.7%), while markedly reducing head rice yield (-13.3%); FACE caused serious deterioration of processing suitability (milled rice percentage -2.0%; head rice percentage -23.5%) and appearance quality (chalky grain percentage +16.9%; chalkiness degree +28.3%) drastically; the nutritive value of grains was also negatively influenced by FACE due to a reduction in protein (-6.0%) and Cu content (-20.0%) in milled rice. By contrast, FACE resulted in better eating/cooking quality (amylose content -3.8%; peak viscosity +4.5%, breakdown +2.9%, setback -27.5%). These changes in grain quality revealed that hardness of grain decreased with elevated [CO2] while cohesiveness and resilience increased when cooked. Overall, N supply had significant influence on rice yield with maximum value occurring at MN, whereas grain quality was less responsive to the N supply, showing trends of better appearance and eating/cooking quality for LN or MN-crops as compared with HN-crops. For most cases, no [CO2] x N interaction was detected for yield and quality parameters. These data suggested that the current recommended rates of N fertilization for rice production should not be modified under projected future [CO2] levels, at least for the similar conditions of this experiment. (c) 2007 Published by Elsevier B.V.
收录类别	SCI
WOS关键词	ORYZA-SATIVA L. ; INCREASING CARBON-DIOXIDE ; BOUND STARCH SYNTHASE ; FIELD-GROWN RICE ; ELEVATED CO2 ; SEASONAL-CHANGES ; PHOSPHORUS-NUTRITION ; EATING-QUALITY ; YIELD RESPONSE ; TROPICAL RICE
WOS研究方向	Agriculture
WOS类目	Agronomy
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000246815000005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558669
专题	南京土壤研究所
通讯作者	Wang, Yulong
作者单位	1.Yangzhou Univ, Kay Lab Crop Genet & Physiol, Yangzhou 225009, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Yang, Lianxin,Wang, Yulong,Dong, Guichun,et al. The impact of free-air CO2 enrichment (FACE) and nitrogen supply on grain quality of rice[J]. FIELD CROPS RESEARCH,2007,102(2):128-140.
APA	Yang, Lianxin.,Wang, Yulong.,Dong, Guichun.,Gu, Hui.,Huang, Jianye.,...&Han, Yong.(2007).The impact of free-air CO2 enrichment (FACE) and nitrogen supply on grain quality of rice.FIELD CROPS RESEARCH,102(2),128-140.
MLA	Yang, Lianxin,et al."The impact of free-air CO2 enrichment (FACE) and nitrogen supply on grain quality of rice".FIELD CROPS RESEARCH 102.2(2007):128-140.

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