干旱区生态环境知识资源中心(Arid): Effect of elevated CO2 on peanut performance in a semi-arid production region

Arid

DOI	10.1016/j.agrformet.2021.108599
	Effect of elevated CO2 on peanut performance in a semi-arid production region
	Laza, Haydee E.; Baker, Jeffrey T.; Yates, Charles; Mahan, James R.; Burow, Mark D.; Puppala, Naveen; Gitz, Dennis C., III; Emendack, Yves Y.; Layland, Nancy; Ritchie, Glen L.; Chen, Junping; Rowland, Diane; Tissue, David T.; Payton, Paxton R.
通讯作者	Laza, HE (corresponding author), Texas Tech Univ, Dept Plant & Soil Sci, Lubbock, TX 79409 USA. ; Payton, PR (corresponding author), USDA ARS, Cropping Syst Res Lab, Lubbock, TX 79415 USA.
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2021
卷号	308
英文摘要	With the intensification and frequency of heat waves and periods of water deficit stress, along with rising atmospheric carbon dioxide [CO2], understanding the seasonal leaf-gas-exchange responses to combined abiotic factors will be important in predicting crop performance in semi-arid production systems. In peanut (Arachis hypogaea L.), the availability of developmental stage physiological data on the response to repeated water deficit stress periods in an elevated [CO2] (EC) environment is limited and necessary to improve crop model predictions. Here, we investigated the effects of season-long EC (650 mu mol CO2 m(-2) s(-1)) on the physiology and productivity of peanut in a semi-arid environment. This study was conducted over two-growing seasons using field-based growth chambers to maintain EC conditions, and impose water-stress at three critical developmental stages. Our results showed that relative to ambient [CO2] (AC), long-term EC during water-stress episodes, increased leaf-level light-saturated CO2 assimilation (A(sat)), transpiration efficiency (TE), vegetative biomass, and pod yield by 58%, 73%, 58%, and 39%, respectively. Although leaf nitrogen content was reduced by 16%, there was 41% increase in maximum Rubisco carboxylation efficiency in EC, indicating that there was minimal photosynthetic down-regulation. Furthermore, long-term EC modified the short-term physiological response (A(sat)) to rapid changes in [CO2] during the water-stress episodes, generating a much greater change in EC (54%) compared to AC (10%). Additionally, long-term EC generated a 23% greater A(sat) compared to the short-term EC during the water-stress episodes. These findings indicate high levels of physiological adjustment in EC, which may increase drought resilience. We concluded that EC may reduce the negative impacts of repeated water-stress events at critical developmental stages on rain-fed peanut in semi-arid regions. These results can inform current models to improve the projections of peanut response to future climates.
英文关键词	Elevated carbon dioxide Peanut Developmental stages Water-deficit stress Photosynthetic downregulation Carbon source-sink
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000692679900048
WOS关键词	ARACHIS-HYPOGAEA L. ; PHOTOSYNTHETIC DOWN-REGULATION ; CARBON-DIOXIDE ; ATMOSPHERIC CO2 ; FREE-AIR ; PHENOTYPIC PLASTICITY ; WATER RELATIONS ; GAS-EXCHANGE ; OPEN SYSTEM ; SEED YIELD
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
来源机构	New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362353
作者单位	[Laza, Haydee E.; Burow, Mark D.; Ritchie, Glen L.] Texas Tech Univ, Dept Plant & Soil Sci, Lubbock, TX 79409 USA; [Baker, Jeffrey T.; Yates, Charles; Mahan, James R.; Gitz, Dennis C., III; Emendack, Yves Y.; Chen, Junping; Payton, Paxton R.] USDA ARS, Cropping Syst Res Lab, Lubbock, TX 79415 USA; [Burow, Mark D.] Texas A&M AgriLife Res & Extens, Lubbock, TX 79403 USA; [Puppala, Naveen] New Mexico State Univ, Agr Sci Ctr, Clovis, NM 88101 USA; [Rowland, Diane] Coll Nat Sci Forestry & Agr, Maine Agr & Forest Expt Stn, Orono, ME 04469 USA; [Layland, Nancy] USDA FSIS, Off Field Operat, Dallas, TX 75242 USA; [Tissue, David T.] Western Sydney Univ, Hawkesbury Inst Environm, Richmond, NSW 2753, Australia
推荐引用方式 GB/T 7714	Laza, Haydee E.,Baker, Jeffrey T.,Yates, Charles,et al. Effect of elevated CO2 on peanut performance in a semi-arid production region[J]. New Mexico State University,2021,308.
APA	Laza, Haydee E..,Baker, Jeffrey T..,Yates, Charles.,Mahan, James R..,Burow, Mark D..,...&Payton, Paxton R..(2021).Effect of elevated CO2 on peanut performance in a semi-arid production region.AGRICULTURAL AND FOREST METEOROLOGY,308.
MLA	Laza, Haydee E.,et al."Effect of elevated CO2 on peanut performance in a semi-arid production region".AGRICULTURAL AND FOREST METEOROLOGY 308(2021).