Claim · model-written summary
The mild to moderate water deficit during berry set caused a greater reduction in berry size and weight than the more severe water deficit at veraison.
- Treatment
- the mild to moderate water deficit during berry sete2
- Outcome
- berry size and weighte2
- Direction
- greater reductione2
- Comparator
- the more severe water deficit at veraisone2
VitisNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study evaluated the effect of drought stress on two grapevine cultivars (Sauvignon Blanc and Chardonnay) under irrigated and rainfed conditions”
e2“the mild to moderate water deficit during berry set caused a greater reduction in berry size and weight, and consequently in yield, than the more severe water deficit at veraison”
Title
Fadwa Benyahia; Carina Veronica Gonzalez; Ahmed Ben Abdelkader; et al. Australian Journal of Grape and Wine Research 2026. doi:10.1155/ajgw/6920071
Other claims from this paper (14)
- Intervention effect Drought stress caused growth inhibition in grapevine, particularly in 2022.
- Intervention effect Drought stress impaired photosynthetic activity in grapevine, particularly in 2022.
- Intervention effect The mild to moderate water deficit during berry set caused a greater reduction in yield than the more severe water deficit at veraison.
- Intervention effect Drought stress affected berry soluble solids accumulation in grapevine.
- Intervention effect Drought stress did not change berry pH or titratable acidity in grapevine.
- Observation Sensory analysis revealed distinct wine differences across vintages and cultivars.
- Intervention effect Wines from rainfed grapevines showed enhanced hedonistic attributes, such as complexity, fullness and length.
- Intervention effect Sauvignon Blanc showed greater growth inhibition than Chardonnay under drought stress.
- Intervention effect Sauvignon Blanc showed decreased photosynthetic activity under drought stress compared with Chardonnay.
- Intervention effect Sauvignon Blanc showed substantial yield loss under drought stress compared with Chardonnay.
- Intervention effect Sauvignon Blanc wine sensory profiles were altered under drought stress compared with Chardonnay.
- Association Chardonnay seemed more resilient to drought conditions than Sauvignon Blanc.
- Intervention effect Chardonnay wines showed no discernible differences between rainfed and irrigated treatments.
- Recommendation Cultivar-specific irrigation schedules may help conserve water and preserve yields in mountain vineyards.