Performance of interspecific grapevine varieties in north-east Italy

Pacifico, Daniela; Gaiotti, Federica; Mirella, Giusti; Tomasi, Diego

doi:10.4236/as.2013.42015

Cited by 11 publications

(2 citation statements)

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“…To date, very few articles are available to be compared to the data presented here evaluated in such a range of genotypes. Some research dealt with the evaluation of hybrids in terms of performance (e.g., [57]) and most studies on QTL analysis of disease resistance against DM and PM resorted to use regularly leaf disc experiments (in vitro assay). For DM assessment in untreated fields, our study could be compared with the recent work of [58] where 28 promising hybrids were screened with a leaf discs assay and evaluated for foliar and cluster downy mildew resistance in an untreated field trial over three successive years.…”

Section: Resultsmentioning

confidence: 99%

R-Loci Arrangement Versus Downy and Powdery Mildew Resistance Level: A Vitis Hybrid Survey

Zini

Dolzani

Stefanini

et al. 2019

IJMS

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For the viticulture of the future, it will be an essential prerequisite to manage grapevine diseases with fewer chemical inputs. The development and the deployment of novel mildew resistant varieties are considered one of the most promising strategies towards a sustainable viticulture. In this regard, a collection of 102 accessions derived from crossing Vitis hybrids with V. vinifera varieties was studied. In addition to the true-to-type analysis, an exhaustive genetic characterization was carried out at the 11 reliable mildew resistance (R) loci available in the literature to date. Our findings highlight the pyramiding of R-loci against downy mildew in 15.7% and against powdery mildew in 39.2% of the total accessions. The genetic analysis was coupled with a three-year evaluation of disease symptoms in an untreated field in order to assess the impact of the R-loci arrangement on the disease resistance degree at leaf and bunch level. Overall, our results strongly suggest that R-loci pyramiding does not necessarily mean to increase the overall disease resistance, but it guarantees the presence of further barriers in case of pathogens overcoming the first. Moreover, our survey allows the discovery of new mildew resistance sources useful for novel QTL identifications towards marker-assisted breeding.

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Section: Resultsmentioning

confidence: 99%

R-Loci Arrangement Versus Downy and Powdery Mildew Resistance Level: A Vitis Hybrid Survey

Zini

Dolzani

Stefanini

et al. 2019

IJMS

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“…The early veraison renders these varieties more suitable for cool climates or areas located at higher altitudes(FRIONI et al, 2020). In a previous study, evaluating 19 resistant varieties,Pacifico et al (2013) verified that on average, the blooming, veraison and harvest dates for resistant varieties in northern Italy occurred later than observed with "Pinot gris".…”

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confidence: 73%

Performance of resistant grape varieties (PIWI), 'Felicia', 'Calardis Blanc' and 'Helios' in two locations of Santa Catarina State (BR)

Giovanni,

Souza,

Caliari

et al. 2023

Rev. Bras. Frutic.

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Downy mildew (Plamopora viticola) is one of the major problems to produce wine grapes in Brazil, a main cause of yield losses in the Southern region of the country. An alternative to the use of pesticides is the use of resistant varieties (PIWI): wine grapes combining high oenological potential and resistance to diseases. The goal of this work was to assess the vegetative and productive performance and maturation of three PIWI varieties (‘Felicia’, ‘Calardis Blanc’ and ‘Helios’) produced at altitudes of 840m and 1250m in the 2020, 2021 and 2022 vintages. The study is focused on four phenological stages: budbreak (BBCH 7), full bloom (BBCH 65), veraison (BBCH 81) and maturity/harvest (BBCH 89). The criteria for measuring the productive performance were, the number of clusters, average cluster weight, production per plant, yield and Ravaz index. As parameters for technological and phenolic maturation, pH, soluble solids, total acidity and total polyphenols were evaluated. The budbreak occurred at the end of August until the second fortnight of September, the flowering occurred in the second week of October, the veraison occurred during the month of December, and the maturity/harvest occurred from the second fortnight of January until the beginning of February. The earliest budbreak occurred with ‘Felicia’ in the vineyard at 1250m and the latest occurred with ‘Calardis Blanc’. Regardless of the vineyard altitude, there was practically no difference in the flowering date between varieties and the vineyards altitude, the veraison and the maturity/harvest occurred earlier in the vineyard at 840m. The varieties produced at 840 m had a shorter cycle and proved to be more productive when compared to those produced at 1250 m. The studied varieties showed good phenological adaptation, high yield and maturation indices suitable for the production of quality still and sparkling white wines at both altitudes. From the results obtained, ‘Felicia’ and ‘Calardis Blanc’ seem to be the most promising varieties for cultivation in both altitude ranges.

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