Agronomic responses of grapevine ‘Chenin Blanc’ as a function of training systems and rootstocks

Leão, P. C. de S.; Chaves, Agnaldo Rodrigues de Melo

doi:10.1590/1678-992x-2018-0413

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…The vigor of the shoot is induced by rootstocks, causing an effect on the vegetativeproductive balance [2,10]. In fact, rootstock genotype affects the assimilation of carbon from the air and the uptake of macronutrients from the soil, such as nitrogen (N) and phosphorous (P)-directly related to the development of biomass [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection

Bianchi

Brancadoro

2021

Horticulturae

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The production and quality of grapes are determined by the hydric and nutritional status of the vine. In modern viticulture, the interface between grapevine and soil is represented by the rootstock, which modulates the uptake of water and nutrients. Thus, selection of new rootstocks for abiotic stress tolerance represents an adaptation strategy for viticulture to the new environmental conditions imposed by climate change. The aim of this work is to evaluate the water-use efficiency (WUE) and the nutritional status of a selection of 30 new rootstock genotypes, originating from several breeding programs. WUE and gas exchange were measured for each genotype in two environments characterized by different water availability, and the levels of N, P, K, Mg, Ca, Na, Fe, Mn, and Zn in the leaf blades were determined during the phenological stages of flowering and ripening. Water availability was different in the two environments, affecting gas exchange, with mean values of carbon assimilation of 10.43 ± 0.32 and 3.84 ± 0.34 µmol CO2 m−2 s−1, respectively. Genotypes were classified according to their water stress tolerance, vigor, and affinity for macronutrients and micronutrients. A total of 14 genotypes showed tolerance to water stress, and 10 of them reported high vigor and carbon assimilation. Furthermore, the majority of water-stress-tolerant genotypes had greater affinity for Mg than for K. In further studies, the most promising rootstocks will be evaluated in grafting combination with Vitis vinifera.

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Section: Introductionmentioning

confidence: 99%

Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection

Bianchi

Brancadoro

2021

Horticulturae

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Climate Change Affects Choice and Management of Training Systems in the Grapevine

Del Zozzo,

Poni

2024

Australian Journal of Grape and Wine Research

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Although vertical shoot positioned (VSP) training systems, either cane- or spur-pruned, are adopted in the great majority of the vineyards worldwide, the lianas nature of the grapevine and the presence of long and flexible canes confer high plasticity and render structural and pruning changes quite easy. The focus of this review is if, in light of the most consistent features triggered by global warming (e.g., longer growing season, earlier phenology, faster ripening, higher incidence of overheating stress and sunburn, higher frequency of extreme weather events), the type and management of training systems should also be reconsidered. We surveyed the main methods to assess training system efficiency and the current attempts and outlook toward exploiting the training system as an adaptation tool to climate change. For the latter, we considered 12 main trellis types and scored them based on climate-related features and general traits such as vigor, yield control, susceptibility to fungal diseases, and suitability according to wine types (still or sparkling). The resulting balance of positive and negative recommendations leads to a re-evaluation of either old, nonmechanizable trellis types (e.g., Raggi-Bellussi and pergola types), divided canopy systems (e.g., GDC and Scott Henry) or, among the single canopy types, of the single high wire (SHW) trellis. However, historical systems traditionally used by best regions and producers (e.g., goblet and VSP either cane- or spur-pruned) overall show less adherence to the chosen evaluation criteria. To direct future evolution of training systems, regardless of the broadly shared need for suitability to partial or full mechanization, the scenario looks different depending on cool and temperate (warm) areas. The former experiences an outburst of interest as warming is broadening growing areas and affordable genotypes. Under such circumstances, training systems should help accelerate or favor the ripening process through vigor control and lower yield, better cluster exposure, and nonlimiting leaf area-to-fruit ratio. Whereas, in warm areas that are now becoming sub-tropical areas in the worst cases, the SHW gains credit as compared to goblet and traditional VSP. The latter requires an increasing number of canopy manipulations and a rethinking of some planting choices to accommodate the needs of slower and more delayed ripening, more cluster shading, and higher cordons, the latter reducing the probability of incurring significant frost damag

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Agronomic responses of grapevine ‘Chenin Blanc’ as a function of training systems and rootstocks

Cited by 2 publications

References 15 publications

Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection

Water Use Efficiency and Nutritional Status of a New Grapevine Rootstock Selection

Climate Change Affects Choice and Management of Training Systems in the Grapevine

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