Response of young super-high density table olive orchard (Manzanilla de Sevilla) to different water stress levels considering an accurate determination of endocarp development

被引：1

作者：

Sanchez-Pinero, Marta ^{[1
]}

Corell, Mireia ^{[1
,2
]}

Moriana, Alfonso ^{[1
,2
]}

Perez-Lopez, David ^{[3
]}

Sosa, Laura L. de ^{[1
,2
,4
]}

Medina-Zurita, Noemi ^{[1
]}

Castro-Valdecantos, Pedro ^{[1
]}

Martin-Palomo, Maria Jose ^{[1
,2
]}

机构：

[1] Univ Seville, Agron Dept, ETSIA, Crta Utrera Km 1, Seville 41013, Spain

[2] Unit associated CSIC Uso Sostenible Suelo & Agua A, Crta Utrera Km 1, E-41013 Seville, Spain

[3] Univ Politecn Madrid, Agr Prod Dept, CEIGRAM, Ave Puerta Hierro 2, Madrid 28040, Spain

[4] Inst Recursos Nat & Agrobiol Sevilla IRNAS CSIC, Ave Reina Mercedes 10, Seville 41012, Spain

来源：

AGRICULTURAL WATER MANAGEMENT | 2024年 / 303卷

关键词：

Fruit size; Inflorescence set; Midday stem water potential; Pit hardening; Stress integral; SUMMER DEFICIT IRRIGATION; OLEA-EUROPAEA L; FRUIT-GROWTH; PRODUCTIVITY; YIELD; TREES; QUALITY; TOOL;

D O I：

10.1016/j.agwat.2024.109044

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Olive trees are extremely drought-resistant species. This particularity could be used to reduce water needs in regulated deficit irrigation scheduling. However, the yield response to water deficit is linked to the moment and the level of water stress imposed. Pit hardening has been commonly used as the stage to decrease irrigation, but it is not measured under field conditions. The aim of this work is to describe the impact of water stress conditions on yield response for table olive trees, considering an accurate determination of the endocarp development. The experiment was performed from the 2020 to the 2023 seasons on a two-year-old super-high density table olive orchard (cv Manzanilla de Sevilla). The three irrigation treatments (six repetitions) were: Control, no water stress conditions throughout the season in 2020 and 2021, and mild water stress to reduce vigour in 2022 and 2023; Regulated deficit irrigation (RDI), based on a moderate to severe water stress during pit hardening, using midday stem water potential measurements; and Rainfed. Endocarp development was established using the pit-breaking pressure throughout the 2021, 2022 and 2023 seasons. Water relations, vegetative growth, number of inflorescence and fruits, yield and fruit quality were measured during the experiment. Crown volume limited yield in Rainfed treatments but not in RDI, compared to Control. The number of inflorescences and inflorescence set was not affected in RDI and Rainfed, only reduced in severe water stress in 2023. RDI presented a similar yield response to Control, with a reduction of 50 % on applied water and a significant more negative midday stem water potential. The Rainfed trees were unsuitable for table production because rehydration did not recover fruit size enough to be commercial. Endocarp maintained the capacity of growing until the end of the season.

引用

页数：14