terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Impact of polyclonal selection for abiotic stress tolerance on the yield and must quality traits of grapevine varieties

Impact of polyclonal selection for abiotic stress tolerance on the yield and must quality traits of grapevine varieties

Abstract

The effects of climate change in viticulture are currently a major concern, with heat waves and drought affecting yield, wine quality, and in extreme cases, even plant survival. Ancient grapevine varieties have high intravarietal genetic variability that so far has been explored successfully to improve yield and must quality. Currently, there is little information available on intravarietal variability regarding responses to stress. In the current work, the intravarietal genetic variability of several Portuguese varieties was studied for yield, must quality, and tolerance to abiotic stress, through indirect, rapid, and nondestructive measurements carried out in the field.

The present work describes an innovative approach in selection for abiotic stress tolerance, performed in experimental populations of several varieties installed according to resolvable row-column designs with 4 to 6 replicates1. Representative samples of the intravarietal variability of three ancient varieties (Uva Cão, Castelão, and Moscatel Graúdo) under conditions of drought and extreme heat were measured for surface leaf temperature (SLT), a parameter that had already been used for the varieties Aragonez2 and Arinto3, with good results. This was complemented with analyses of yield and quality characteristics of the must. Linear mixed models were fitted to the data of the traits evaluated, and the empirical best linear unbiased predictors (EBLUPs) of genotypic effects for each trait were obtained as well as the coefficient of genotypic variation (CVG) and broad sense heritability4. The genotypes were then ranked according to their level of tolerance to abiotic stress, and the changes in yield and traits of quality of the must were assessed for those genotypes. The results obtained will be the basis to develop, for those varieties, a new type of polyclonal selected material with increased tolerance to abiotic stress, in relation to the average of the varieties.

Acknowledgements: Projects “Conservation and selection of ancient grapevine varieties” (PDR2020-784-042704), “Save the intra-varietal diversity of autochthonous grapevine varieties” (PRR-C05-i03-|-000016); FCT: DL57/2016/CP1382/CT0024 to LC; UIDB/04129/2020 and LEAF Thematic Line Project Clones4ClimateChange.

1)  Gonçalves E. et. al. (2010) Experimental designs for evaluation of genetic variability and selection of ancient grapevine varieties: a simulation study. Heredity, 104: 552–562. DOI: 10.1038/hdy.2009.153

2)  Carvalho L.C. et. al. (2020) Selecting Aragonez genotypes able to outplay climate change driven abiotic stress. Front. Plant Sci., 11: 599230, DOI: 10.3389/fpls.2020.599230

3)  Carvalho L.C. et. al. (2023) Polyclonal selection for abiotic stress tolerance in Arinto: implications in yield and quality of the must. 44th World Congress of Vine and Wine, Cádiz, Spain, 5-9 June.

4)  Gonçalves E. and Martins A. (2019). Genetic gains of selection in ancient grapevine cultivars. Acta Hortic., 1248, 47–54. DOI: 10.17660/ActaHortic.2019.1248.7

DOI:

Publication date: October 4, 2023

Issue: ICGWS 2023

Type: Article

Authors

Luísa Carvalho1, Teresa Pinto2, Joana Ribeiro1, J. Miguel Costa1, Antero Martins1,2, Elsa Gonçalves1,2

1LEAF- Linking Landscape, Environment, Agriculture and Food, Associated Laboratory TERRA; Instituto Superior de Agronomia, Universidade de Lisboa, Portugal
2Associação Portuguesa para a Diversidade da Videira – PORVID, Lisboa, Portugal

Contact the author*

Keywords

abiotic stress, grapevine, intravarietal variability, polyclonal selection, surface leaf temperature

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Acceptability of canned wines: effect of the level of involvement of consumers and type of wine

In recent years there has been a growing demand for alternative packaging designs in the food industry focused on diminishing the carbon footprint. Despite the environmental advantages of cans versus bottles, the traditional environment of wine has hindered the establishment of less contaminant containers. In this context, the objective of this study was to understand and generate knowledge about consumers´ perception of canned wines in comparison to bottled wines.

Read More

Possible methods of adaptation to the effects of climate change in the Tokaj Wine Region 

Viticulture’s adaptation to the harmful effects of climate change is globally the biggest challenge of the near future. Short, extremely intensive rainfalls and longer periods of drought are getting more frequent in the Tokaj Wine Region, where the majority of the vineyards are cultivated on steep slopes. Hence, erosion has high risk, especially when combined with the loess-based soils on about ten percent of the region. The environmentally beneficial cover crop and mulch usage can effectively reduce the risk of erosion, according to research done by the Tokaj Wine Region Research Institute of Viticulture and Oenology.

Read More

Uncovering the interplay between Copper and SO2 tolerance in Saccharomyces cerevisiae

[lwp_divi_breadcrumbs home_text="IVES" use_before_icon="on" before_icon="||divi||400" module_id="publication-ariane" _builder_version="4.20.4" _module_preset="default" module_text_align="center" module_font_size="16px" text_orientation="center"...
Read More

Toasting and grain effect on Tempranillo red wine aged in Quercus petraea barrels

The barrel-making process is widely recognized as a crucial practice that affects the composition of barrel-aged wine. After the drying process, the staves are considered ready for barrel assembly, which includes the processes of bending and toasting the barrel structure. Toasting is considered one of the most critical stages in determining the physical and chemical composition of the staves, which can influence the chemical and sensory composition of the wine aged in barrels made from them [1].

Read More

Influence of irrigation frequency on berry phenolic composition of red grape varieties cultivated in four spanish wine-growing regions

The global warming phenomenon involves the frequency of extreme meteorological events accompanied by a change in rainfall distribution. Irrigation frequency (IF) affects the spatial and temporal soil water distribution but its effects on the phenolic composition of the grape have been scarcely studied. The aim of this work was to evaluate the effects of four deficit irrigation frequencies of 30 % ETo: one irrigation per day (T01), two irrigations per week (T03), one irrigation per week (T07) and one irrigation every two weeks (T15) on berry phenolic composition at harvest.

Read More