干旱区生态环境知识资源中心(Arid): A comprehensive method of evaluating the impact of drought and salt stress on tomato growth and fruit quality based on EPIC growth model

Arid

DOI	10.1016/j.agwat.2018.10.010
	A comprehensive method of evaluating the impact of drought and salt stress on tomato growth and fruit quality based on EPIC growth model
	Yang, Hui 1; Du, Taisheng 1; Mao, Xiaomin 1; Ding, Risheng 1; Shukla, Manoj K.2
通讯作者	Du, Taisheng
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2019
卷号	213 页码:116-127
英文摘要	Owing to the severe shortages of fresh water in arid and semi-arid areas, growers are forced to apply deficit irrigation with fresh or saline water. To quantify the impacts of water deficit and salt stress individually and the interaction on tomato yield and quality, three pot experiments were conducted from spring 2016 to autumn 2017. The EPIC growth model was also used to simulate fruit growth process. Three irrigation treatments used were full irrigation, 2/3 and 1/2 of the full irrigation. Salt stress varied with the season: 0, 3 parts per thousand, 6 parts per thousand, 9 parts per thousand for 2016 season, 0, 3 parts per thousand for 2016-2017 season and 0, 2 parts per thousand, 3 parts per thousand, 4 parts per thousand for 2017 season. Decreases in single fruit weights were associated with increasing soil salt content. However, fruit quality parameters including CI (color index), TSS (total soluble solids) and TSSC (total soluble sugar content) improved significantly with increasing salt content of soil. In the absence of salt stress, the application of 2/3 of full irrigation showed a 18.9% and 1.0% increase of yield per plant, respectively in 2016 and 2017 seasons with comparison to full irrigation, mainly owing to the increase of fruits number per plant. Fruit quality also improved with increasing Fn (fruit firmness), CI, TSS and TSSC by 7.9%, 43.8%, 9.8% and 3.8% in 2016 season, and by 4.7%, 0.7%, 20.9% and 34.2% in 2017 season, respectively. Fruit quality parameters were more affected by salt stress than drought, the interactive impact of water and salt on fruit quality parameters was not significant. At mild water stress (2/3 of full irrigation) with moderate salt stress (salt content of 3 parts per thousand), although yield showed a decline of 20.3%-32.0%, fruit quality parameters of Fn, CI, TSS and TSSC increased by 4.9%-43.4% through 2016 and 2017 seasons. Two of van Genuchten and Hoffman models (i.e. non-linear and exponential reduction model) were used to evaluate the relations of relative yield and soil salt content with acceptable accuracy, R-2 of 0.989 and 0.971, respectively. Soil salt content at which yield decreased by 50% is 4.0 parts per thousand, and 4.7 parts per thousand, respectively in the non-linear reduction model and the exponential reduction model. The EPIC growth model simulated fruit growth process with acceptable accuracy for no stress, water stress and salt stress, with R-2 of 0.863, 0.839 and 0.895, respectively. The two yield reduction models and the relationship between fruit quality parameters and soil salt content showed that there are tradeoffs between tomato yield and fruit quality in saline soils.
英文关键词	Tomato quality parameters Water use efficiency Simulation Deficit irrigation Saline soil
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000457952700011
WOS关键词	WATER-USE EFFICIENCY ; DEFICIT IRRIGATION ; SALINE IRRIGATION ; PHYSIOLOGICAL-RESPONSE ; YIELD ; GREENHOUSE ; PERFORMANCE ; MAIZE ; SIMULATION ; TOLERANCE
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
来源机构	中国农业大学 ; New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/213991
作者单位	1.China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China; 2.New Mexico State Univ, Plant & Environm Sci Dept, Las Cruces, NM 88003 USA
推荐引用方式 GB/T 7714	Yang, Hui,Du, Taisheng,Mao, Xiaomin,et al. A comprehensive method of evaluating the impact of drought and salt stress on tomato growth and fruit quality based on EPIC growth model[J]. 中国农业大学, New Mexico State University,2019,213:116-127.
APA	Yang, Hui,Du, Taisheng,Mao, Xiaomin,Ding, Risheng,&Shukla, Manoj K..(2019).A comprehensive method of evaluating the impact of drought and salt stress on tomato growth and fruit quality based on EPIC growth model.AGRICULTURAL WATER MANAGEMENT,213,116-127.
MLA	Yang, Hui,et al."A comprehensive method of evaluating the impact of drought and salt stress on tomato growth and fruit quality based on EPIC growth model".AGRICULTURAL WATER MANAGEMENT 213(2019):116-127.