干旱区生态环境知识资源中心(Arid): Improving Peach Fruit Quality Traits Using Deficit Irrigation Strategies in Southern Tunisia Arid Area

Arid

DOI	10.3390/plants11131656
	Improving Peach Fruit Quality Traits Using Deficit Irrigation Strategies in Southern Tunisia Arid Area
	Toumi, Ines; Zarrouk, Olfa; Ghrab, Mohamed; Nagaz, Kamel
通讯作者	Toumi, I
来源期刊	PLANTS-BASEL
ISSN	2223-7747
出版年	2022
卷号	11 期号:13
英文摘要	The peach (Prunus persica L.) is one of Tunisia's major commercial fruit crops and is considered one of the biggest water consumers of all crops. In warm and arid areas of southern Tunisia, irrigation is necessary to ensure orchard longevity and high yield and fruit quality. Nevertheless, under water-scarcity conditions and low water quality, water management should rely on efficient deficit irrigation strategies. In this study, sustained deficit irrigation (DI) and partial root-zone drying (PRD50) at 50% of crop evapotranspiration (ETc) were evaluated for their impact on the primary and secondary metabolites of the peach fruit of early cultivar Flordastar grown in the Tataouine region. A full irrigation (FI) treatment at 100%, etc., was used as a control treatment. Color, drymatter content, firmness, organic acids, sugars, phenolic compounds, vitamin C, beta-carotene and minerals were assessed on harvested mature fruits. Dry-matter content and firmness increased significantly under DI and PRD50 (13% and 15.5%). DI fruit had the highest soluble-solid content (SSC), reaching Brix values of 14.3 degrees. Fruit sorbitol and sucrose contents were not affected by Di and PRD50. Higher glucose in fruit juice was observed in PRD50 (23%) and DI (21.5%) compared to FI, which had the highest malic acid content (33.5-37%). Quinic and citric acids decreased with DI and PRD50, while almost all individual phenolic compounds increased with deficit irrigation. Hydroxycinnamates and anthocyanins were significantly higher in fruits harvested from DI and PRD50 treatments. Proanthocyanidins (catechin and epicatechin) were only improved by DI, while flavone compounds and vitamin C were not affected by irrigation restrictions. beta-carotene was higher in fruits yielded under FI (0.71 mg/100 g DM) than DI and PRD50 (0.21-0.43 mg/100 g DM). Macroand micronutrients significantly increased in DI and PRD50 fruit. A significant difference between DI and PRD50 fruits was observed for Zn and Fe concentrations. This research highlights the positive impact of reduced irrigation on bioactive-fruit quality attributes and the suitability of PRD50 and DI as tools for irrigation management in arid areas of southern Tunisia, contributing to water-saving in orchards and the improvement of fruit commercial value.
英文关键词	Prunus persica L. secondary metabolites sugars organic acids mineral elements
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000823935700001
WOS关键词	DROUGHT STRESS ; FLESHY FRUITS ; CELL-WALL ; WATER ; YIELD ; GRAPEVINE ; GROWTH ; TRANSPORT ; RESOURCES ; SORBITOL
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393992
推荐引用方式 GB/T 7714	Toumi, Ines,Zarrouk, Olfa,Ghrab, Mohamed,et al. Improving Peach Fruit Quality Traits Using Deficit Irrigation Strategies in Southern Tunisia Arid Area[J],2022,11(13).
APA	Toumi, Ines,Zarrouk, Olfa,Ghrab, Mohamed,&Nagaz, Kamel.(2022).Improving Peach Fruit Quality Traits Using Deficit Irrigation Strategies in Southern Tunisia Arid Area.PLANTS-BASEL,11(13).
MLA	Toumi, Ines,et al."Improving Peach Fruit Quality Traits Using Deficit Irrigation Strategies in Southern Tunisia Arid Area".PLANTS-BASEL 11.13(2022).