干旱区生态环境知识资源中心(Arid): A model of environmental limitations on production of Agave americana L. grown as a biofuel crop in semi-arid regions

Arid

DOI	10.1093/jxb/ery383
	A model of environmental limitations on production of Agave americana L. grown as a biofuel crop in semi-arid regions
	Niechayev, Nicholas A.1; Jones, Alexander M.1; Rosenthal, David M.2; Davis, Sarah C.1,2
通讯作者	Davis, Sarah C.
来源期刊	JOURNAL OF EXPERIMENTAL BOTANY
ISSN	0022-0957
EISSN	1460-2431
出版年	2019
卷号	70 期号:22 页码:6549-6559
英文摘要	Plants that use crassulacean acid metabolism (CAM) have the potential to meet growing agricultural resource demands using land that is considered unsuitable for many common crop species. Agave americana L., an obligate CAM plant, has potential as an advanced biofuel crop in water-limited regions, and has greater cold tolerance than other high-yielding CAM species, but physiological tolerances have not been completely resolved. We developed a model to estimate the growth responses of A. americana to water input, temperature, and photosynthetically active radiation (PAR). The photosynthetic response to PAR was determined experimentally by measuring the integrated leaf gas exchange over 24 h after acclimation to six light levels. Maximum CO2 fixation rates were observed at a PAR intensity of 1250 mu mol photons m(-2) s(-1). Growth responses of A. americana to water and temperature were also determined, and a monthly environmental productivity index (EPI) was derived that can be used to predict biomass growth. The EPI was calculated as the product of water, temperature, and light indices estimated for conditions at a site in Maricopa (Arizona), and compared with measured biomass at the same site (where the first field trial of A. americana as a crop was completed). The monthly EPI summed over the lifetime of multi-year crops was highly correlated with the average measured biomass of healthy 2- and 3-year-old plants grown in the field. The resulting relationship between EPI and biomass provides a simple model for estimating the production of A. americana at a monthly time step according to light, temperature, and precipitation inputs, and is a useful tool for projecting the potential geographic range of this obligate CAM species in future climatic conditions.
英文关键词	CAM crassulacean acid metabolism drought tolerance bioethanol temperature response desert crops bioenergy light intensity
类型	Article
语种	英语
国家	USA
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:000506809000006
WOS关键词	CRASSULACEAN ACID METABOLISM ; OPUNTIA-FICUS-INDICA ; SOIL-WATER ; CAM PLANT ; USE EFFICIENCY ; PHYSIOLOGICAL-RESPONSES ; KALANCHOE-BLOSSFELDIANA ; BIOENERGY PRODUCTION ; NITROGEN NUTRITION ; CHIHUAHUAN DESERT
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2019-11-15
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310860
作者单位	1.Ohio Univ, Voinovich Sch Leadership & Publ Affairs, Athens, OH 45701 USA; 2.Ohio Univ, Dept Environm & Plant Biol, Athens, OH 45701 USA
推荐引用方式 GB/T 7714	Niechayev, Nicholas A.,Jones, Alexander M.,Rosenthal, David M.,et al. A model of environmental limitations on production of Agave americana L. grown as a biofuel crop in semi-arid regions[J],2019,70(22):6549-6559.
APA	Niechayev, Nicholas A.,Jones, Alexander M.,Rosenthal, David M.,&Davis, Sarah C..(2019).A model of environmental limitations on production of Agave americana L. grown as a biofuel crop in semi-arid regions.JOURNAL OF EXPERIMENTAL BOTANY,70(22),6549-6559.
MLA	Niechayev, Nicholas A.,et al."A model of environmental limitations on production of Agave americana L. grown as a biofuel crop in semi-arid regions".JOURNAL OF EXPERIMENTAL BOTANY 70.22(2019):6549-6559.