Evaluation of Regulated Deficit Irrigation for Apple Trees Cv. 'Gala' Based on Midday Stem Water Potential and Soil Matrix Potential

Chenafi, Azzeddine; Carlen, C.; Boudoukha, Abderrahmane; Hofer, Alexandre; Monney, P.

doi:10.17660/actahortic.2014.1038.15

Cited by 3 publications

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“…As AGR was linearly related to mSWP (Table 7), it appears evident that low amounts of water will decrease seasonal fruit growth, and therefore marketable yield will be penalized [37,38]. Similar results were found in the literature [39][40][41], confirming the high susceptibility of the apple crop to water stress. A seven-year study reported, however, that long-term water stress in apple will generally decrease vegetative growth while dedicating resources to productive structures and growth [42].…”

Section: Discussionsupporting

confidence: 85%

High Levels of Shading as A Sustainable Application for Mitigating Drought, in Modern Apple Production

et al. 2021

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Section: Discussionsupporting

confidence: 85%

High Levels of Shading as A Sustainable Application for Mitigating Drought, in Modern Apple Production

et al. 2021

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“…Previously, Ψ md reference values of −1.3 MPa in ‘Mutsu’ and ‘Cox Orange’ apple were reported after 10 days of water-limited conditions [ 30 ]. In another study on ‘Gala’, irrigation was withheld until a −1.2 MPa threshold for Ψ md was reached without any negative effects on yield or fruit quality [ 31 ]. In both years of this study, after 15 days for early, middle, and late water limitations, mid-day stem water potential was near the threshold reported in other studies.…”

Section: Discussionmentioning

confidence: 99%

Water Deficit Timing Affects Physiological Drought Response, Fruit Size, and Bitter Pit Development for ‘Honeycrisp’ Apple

Reid

Kalcsits

2020

Plants

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Irrigation is critical to maintain plant growth and productivity in many apple-producing regions. ‘Honeycrisp’ apple characteristically develops large fruit that are also susceptible to bitter pit. Limiting fruit size by restricting irrigation may represent an opportunity to control bitter pit in ‘Honeycrisp’. For three seasons, ‘Honeycrisp’ trees were subject to water limitations in 30-day increments and compared to a fully watered control. Water limitations were imposed from 16–45, 46–75, and 76–105 days after full bloom (DAFB). Soil moisture for the well-watered control was maintained at 80–90% of field capacity for the entire season. For two years, physiological measurements were made every 15 days from 30 to 105 DAFB. Fruit quality, bitter pit incidence, shoot length, and return bloom were also measured to assess impacts on growth and productivity. When water was limited, stomatal conductance and net gas exchange were lower compared to the well-watered control and stem water potential decreased by 30–50% throughout the growing season. Early season water limitations had a lower impact on plant response to abiotic stress compared to late-season limitations. Overall, water deficits during fruit expansion phases contributed to fewer large fruit and decreased overall bitter pit incidence with no negative effects on fruit quality.

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Effects of soil water stress on fruit yield, quality and their relationship with sugar metabolism in ‘Gala’ apple

Wang

Liu

Wang

et al. 2019

Scientia Horticulturae

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Evaluation of Regulated Deficit Irrigation for Apple Trees Cv. 'Gala' Based on Midday Stem Water Potential and Soil Matrix Potential

Cited by 3 publications

References 0 publications

High Levels of Shading as A Sustainable Application for Mitigating Drought, in Modern Apple Production

High Levels of Shading as A Sustainable Application for Mitigating Drought, in Modern Apple Production

Water Deficit Timing Affects Physiological Drought Response, Fruit Size, and Bitter Pit Development for ‘Honeycrisp’ Apple

Effects of soil water stress on fruit yield, quality and their relationship with sugar metabolism in ‘Gala’ apple

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