Adapting wine grape production to climate change through canopy architecture manipulation and irrigation in warm climates
Fecha
2022Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.3389/fpls.2022.1015574
Resumen
Grape growing regions are facing constant warming of the growing season
temperature as well as limitations on ground water pumping used for irrigating
to overcome water deficits. Trellis systems are utilized to optimize grapevine
production, physiology, and berry chemistry. This study aimed to compare 6
trellis systems with 3 levels of applied water amounts based on different
replacements of ...
[++]
Grape growing regions are facing constant warming of the growing season
temperature as well as limitations on ground water pumping used for irrigating
to overcome water deficits. Trellis systems are utilized to optimize grapevine
production, physiology, and berry chemistry. This study aimed to compare 6
trellis systems with 3 levels of applied water amounts based on different
replacements of crop evapotranspiration (ETc) in two consecutive seasons.
The treatments included a vertical shoot position (VSP), two modified VSPs
(VSP60 and VSP80), a single high wire (SH), a high quadrilateral (HQ), and a
Guyot pruned VSP (GY) combined with 25%, 50%, and 100% ETc water
replacement. The SH had greater yields, whereas HQ was slower to reach
full production potential. At harvest in both years, the accumulation of
anthocyanin derivatives was enhanced in SH, whereas VSPs decreased them.
As crown porosity increased (mostly VSPs), berry flavonol concentration and
likewise molar % of quercetin in berries increased. Conversely, as leaf area
increased, total flavonol concentration and molar % of quercetin decreased,
indicating a preferential arrangement of leaf area along the canopy for
overexposure of grape berry with VSP types. The irrigation treatments
revealed linear trends for components of yield, where greater applied water
resulted in larger berry size and likewise greater yield. 25% ETc was able to
increase berry anthocyanin and flavonol concentrations. Overall, this study
evidenced the efficiency of trellis systems for optimizing production and berry
composition in Californian climate, also, the feasibility of using flavonols as the
indicator of canopy architecture. [--]
Materias
Anthocyanins,
Climate change,
Irrigation,
Trellis systems,
Viticulture
Editor
Frontiers Media
Publicado en
Frontiers in Plant Science, (2022) 13, 1-16
Departamento
Universidad Pública de Navarra. Departamento de Agronomía, Biotecnología y Alimentación /
Nafarroako Unibertsitate Publikoa. Agronomia, Bioteknologia eta Elikadura Saila
Versión del editor
Entidades Financiadoras
UC Davis Library has provided partial funding to defray publication costs.