Photosynthetic performance of switchgrass and its relation to field productivity: A three-year experimental appraisal in semiarid Loess Plateau

doi:10.1016/S2095-3119(16)61397-7

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	Photosynthetic performance of switchgrass and its relation to field productivity: A three-year experimental appraisal in semiarid Loess Plateau
	Gao Zhi-juan 1; Liu Jin-biao 1; An Qin-qin 2,3; Wang Zhi 1,2; Chen Shao-lin 4; Xu Bing-cheng 1,2; Xu, BC (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
文章类型	Article
	2017
发表期刊	JOURNAL OF INTEGRATIVE AGRICULTURE
ISSN	2095-3119
通讯作者邮箱	bcxu@nwsuaf.edu.cn
卷号	16 期号:6 页码:1227-1235
摘要	To reveal photosynthetic characteristics and biomass yield is important for evaluating introduced species adaptation to local environments. A field experiment was conducted over three consecutive years (2011-2013) to evaluate photosynthetic characteristics, soil water content, aboveground biomass accumulation, and water use efficiency (WUE) in switchgrass (Panicum virgatum L.) populations exposed to three row spacing (20, 40 and 60 cm) treatments in two growth months (June and August) on the semiarid Loess Plateau of China. Results indicated that net photosynthetic rate (Pr), transpiration rate (Tr), instantaneous water use efficiency (WUE,) and plant height of switchgrass showed an increased trend, but aboveground biomass production and WUE showed an decreased trend with enlarged row spacings over the three years. The maximum daily mean Pr, values (17.9, 18.4 and 19.7 pmol CO2 m(-2) s(-1)) were observed in 2011, and the highest aboveground biomass production (67771.8, 6976.8 and 6609.2 kg ha(-1)) were recorded in 2012 for 20, 40 and 60 cm, respectively. A close correlation between tiller numbers and aboveground biomass production (1 = 0.907) was observed. P-n was positively and significantly correlated with biomass per tiller, but it showed a negative correlation with aboveground biomass production. Our results confirm that wide row spacing is beneficial for single plant development, while narrow row spacing favors biomass production and water use of switchgrass in the region. It also implies that single leaf growth and performance could explain the switchgrass community density differences, while fails to account for the aboveground biomass production.
关键词	Switchgrass Photosynthesis Row Spacing Biomass Production Water Use Efficiency
学科领域	Agriculture
DOI	10.1016/S2095-3119(16)61397-7
URL	查看原文
收录类别	SCI
出版地	OXFORD
语种	英语
WOS记录号	WOS:000403164400004
出版者	ELSEVIER SCI LTD
项目资助者	National Natural Science Foundation of China [41371509]; Programs for New Century Excellent Talents in University, China [NCET-11-0444] ; National Natural Science Foundation of China [41371509]; Programs for New Century Excellent Talents in University, China [NCET-11-0444]
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/8059
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Xu, BC (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China 2.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 3.Minist Water Resources, Yangling 712100, Peoples R China 4.Northwest A&F Univ, Coll Life Sci, Yangling 712100, Peoples R China
推荐引用方式 GB/T 7714	Gao Zhi-juan,Liu Jin-biao,An Qin-qin,et al. Photosynthetic performance of switchgrass and its relation to field productivity: A three-year experimental appraisal in semiarid Loess Plateau[J]. JOURNAL OF INTEGRATIVE AGRICULTURE,2017,16(6):1227-1235.
APA	Gao Zhi-juan.,Liu Jin-biao.,An Qin-qin.,Wang Zhi.,Chen Shao-lin.,...&Xu, BC .(2017).Photosynthetic performance of switchgrass and its relation to field productivity: A three-year experimental appraisal in semiarid Loess Plateau.JOURNAL OF INTEGRATIVE AGRICULTURE,16(6),1227-1235.
MLA	Gao Zhi-juan,et al."Photosynthetic performance of switchgrass and its relation to field productivity: A three-year experimental appraisal in semiarid Loess Plateau".JOURNAL OF INTEGRATIVE AGRICULTURE 16.6(2017):1227-1235.