干旱区生态环境知识资源中心(Arid): Mathematical Models of Leaf Area Index and Yield for Grapevines Grown in the Turpan Area, Xinjiang, China

Arid

DOI	10.3390/agronomy12050988
	Mathematical Models of Leaf Area Index and Yield for Grapevines Grown in the Turpan Area, Xinjiang, China
	Su, Lijun; Tao, Wanghai; Sun, Yan; Shan, Yuyang; Wang, Quanjiu
通讯作者	Su, LJ ; Tao, WH
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2022
卷号	12 期号:5
英文摘要	The Leaf Area Index (LAI) strongly influences crop biomass production and yields. The variation characteristic of LAI and the development of crop growth models can provide a theoretical basis for predicting crops' water consumption, fruit quality and yields. This paper analyzes the relationship between measurements of aboveground grape biomass and trends in LAI and dry biomass production in grapes grown in the Turpan area. The LAI changes in grapes were estimated using the modified logistic model, the modified Gaussian model, the log-normal model, the cubic polynomial model, and the Gaussian model. Universal models of LAI were established in which the applied irrigation quota was applied to calculate the maximum LAI. The relationship between the irrigation quota and biomass production, yields, and the harvest index was investigated. The developed models could accurately predict the LAI of grapevines grown in an extremely arid area. However, the Gaussian and cubic polynomial models produced less accurate results than the other models tested. The Michaelis-Menten model analyzed the relationship between biomass and LAI, providing a numerical method for predicting dynamic changes in grapevine LAI. Moreover, the crop biomass increased linearly with the irrigation quota for quotas between 6375 and 13,200 m(3)/hm. This made it possible to describe the grape yield and harvest index with a quadratic polynomial function, which increases during the early stages of the growing season and then decreases. The analyses of the relationship between yield and harvest index provide important theoretical insights that can be used to improve water use efficiency in grape cultivation and to identify optimal irrigation quotas.
英文关键词	simulation model grape LAI biomass yield harvest index
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000802655300001
WOS关键词	FORAGE GRASS RESPONSE ; LOGISTIC MODEL ; WHEAT GROWTH ; CROP GROWTH ; WATER ; SIMULATION ; EQUATION ; NITROGEN
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391747
推荐引用方式 GB/T 7714	Su, Lijun,Tao, Wanghai,Sun, Yan,et al. Mathematical Models of Leaf Area Index and Yield for Grapevines Grown in the Turpan Area, Xinjiang, China[J],2022,12(5).
APA	Su, Lijun,Tao, Wanghai,Sun, Yan,Shan, Yuyang,&Wang, Quanjiu.(2022).Mathematical Models of Leaf Area Index and Yield for Grapevines Grown in the Turpan Area, Xinjiang, China.AGRONOMY-BASEL,12(5).
MLA	Su, Lijun,et al."Mathematical Models of Leaf Area Index and Yield for Grapevines Grown in the Turpan Area, Xinjiang, China".AGRONOMY-BASEL 12.5(2022).