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From research2020-03-06T12: 10: 06 + 01: 00

Late pruning of the vine

In the current climatic context, with milder winters leading to earlier budburst in most wine regions, vines are exposed to the risk of spring frosts for a longer period.  Depending on the year, frost can lead to yield losses of between 20 and 100 %, jeopardizing the economic survival of wine estates. In addition, by destroying young shoots, spring frosts can impact the following season’s production, by reducing the number of canes available for pruning, for example. Late pruning is one method to combat spring frosts (Ravas, 1912; Frioni et al., 2019).

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October 2, 2022|

1st International conference SABB2022 in Ghent, Belgium

The first edition of the international conference on Sustainable Agriculture Biostimulants and Biopesticides will take place in Ghent, Belgium from Tuesday 20th September until 22nd Sep 2022.

The conference aims to bring together academicsindustryregulatory experts, and policy makers with an interest in plant biostimulants and biopesticides. The conference will focus on non-microbial biostimulant and biopesticide state of the art research. The main topics of the conference are novel biostimulants other biopesticides, progress in the mode of actionbioactive ingredientsplans stressimmune response. A workshop on the 22nd of September will give a forum to discuss the implementation, social issues, and agricultural policy around biostimulants and biopesticides. the 22ndnd There will be an opportunity to visit a 6000 square meter rooftop greenhouse research facility or the Gembloux Agro-Bio Tech research facility.

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August 15, 2022|

Divico wines blended with Pinot noir - good quality and intense colour

Divico, Agroscope's new disease-resistant grape variety, is valued for the quality of the wines made from it. Assemblage trials with the Pinot noir variety have shown that Divico is suitable for correcting color intensity.

With an area of almost 3900 ha in 2020, Pinot noir is the most commonly cultivated variety in Switzerland. It is widespread in all wine-growing regions north of the Alps. The good reputation is based on the fine and typical bouquet of its wines, which is characterized by fruity notes and a good structure as well as very delicate and velvety tannins. Visually, the color intensity is sometimes judged to be a bit weak. Dyer grapes such as Dakapo and Dunkelfelder are therefore cultivated in Switzerland, and their wines are used in low-percentage blends to improve the color of Pinot noir. With the first red grape variety developed by Agroscope and approved in 2013, which is resistant to downy mildew and powdery mildew as well as gray mold, another variety is available that is suitable for this purpose.

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June 3, 2022|

CNRS and INRAE ​​​​are strengthening their scientific collaboration to achieve the Sustainable Development Goals

PRESS RELEASE – Antoine Petit, Chairman and CEO of the CNRS, and Philippe Mauguin, Chairman and CEO of the INRAE, recently signed a new five-year framework agreement to underline the commitment of their research organizations to work even more closely together. In line with recent developments in the French higher education and research system, this new agreement is fully coherent with the science and innovation strategies of the two institutions at national level, notably through site policies, and at international level. In this way, as natural long-term partners, the two institutions have committed to stepping up the joint production and promotion of high-level scientific knowledge to contribute to the achievement of the United Nations Sustainable Development Goals (SDGs). In view of ever-increasing expectations of research,

Source:  INRAE

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March 5, 2022|

resistance conference

stripes2Advances in disease control and resistance breeding in agricultural crops.

The AG for disease control and resistance breeding in cereals, legumes and oilseed rape (JKI) Society for Plant Breeding (GPZ) - AG for resistance breeding and the German Phytomedical Society (DPG) invite you to the conference

Advances in disease control and resistance breeding in agricultural crops

from April 11 to 12, 2022 at the Kolping House in Fulda.

A face-to-face event is planned under the currently valid statutory Corona regulation.
However, if this is not possible, an online event will take place as an alternative.

https://gpz-online.de/resistenztagung/

Contact
Prof. Dr. Thomas Miedaner / Lore Handt
University of Hohenheim (720)
State Seed Breeding Institute
70593 Stuttgart
miedaner[at]uni-hohenheim.de
0711/459-22690
lore.handt[at]uni-hohenheim.de

March 3, 2022|

Macromolecular characterization of disease resistant red wine varieties (PIWI)

AIM: Fungal Resistant (PIWI) are disease resistant Vitis vinifera interspecific hybrid varieties that are receiving increasing attention for ability to ripen in cool climates and their resistance to grapevine fungal diseases. Wines produced from these varieties have not been characterized, especially regarding their macromolecular composition. This study characterized and quantified colloid-forming molecules (proteins, polysaccharides and phenolics) of red PIWI wines produced in the UK.
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February 19, 2022|

Diversity buffers winegrowing regions from climate change losses

Significance

Increasing diversity within crops may be a powerful way to reduce agricultural declines from climate change. As such, it has garnered increasing attention, especially in documenting within-crop diversity through different cultivars or wild relatives. Yet, there are few tests of whether this diversity can mitigate losses with warming. Here, using European (predominantly French) databases to forecast winegrape phenology, we test if shifting cultivars changes predictions of future growing regions. We find that cultivar diversity halved potential losses of winegrowing regions under a 2 °C warming scenario and could reduce losses by a third if warming reaches 4 °C. Thus, diversity—if adopted by growers locally—can mitigate agricultural losses, but its effectiveness will depend on global decisions regarding future emissions.

https://www.pnas.org/content/117/6/2864

January 18, 2022|

Vine Trunk Deseases & Pruning technique Conference - Marzio Zanin

In my vision Piwis represents the natural complement to a wide-angle comprehension at wineyard's health trouble and its year by year preservation
Piwis varieties give answers to annual-cycle diseases, pruning technique is oriented to prevent long-term health problems, together, they are the keys for future's sustainable vineyards.

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November 22, 2021|

Electrochemical measurements in wine, benchmark for quality?

EQC logo-2PIWI logo 140

in collaboration with

Graphics-staller-big

The growth of the plants depends on various environmental parameters such as light and water, but above all on the soil. Different prerequisites thus shape the quality of all products that humans consume by utilizing the chemically stored energy to maintain their bodily functions.

While conventional food tests only provide isolated information about ingredients or caloric content, the electrochemical measurement also records the portion in the food that is responsible for the structural work (the so-called. Entropy share) can deliver.

From a physical point of view, life processes can be seen as a chain of Redox reactions describe.

Derived from the main principles of thermodynamics, it can be shown that the quality of food is above that Redox potential can be represented:

The lower this value, the higher the quality and the neutralization Free radicals.

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November 18, 2021|

Two new joint research projects to curb the golden yellowing of the vine

On the occasion of the handover of the funding notices for two new joint research projects to curb the golden yellow yellowing of the vine (Flavescence dorée = phytoplasmosis), which are coordinated by the vine protectors and vine breeders of the Julius Kühn Institute at the Geilweilerhof site in Siebeldingen, the JKI published the following homepage announcement.

Federal Minister Klöckner hands over funding notices for new JKI research projects on quarantine diseases in vines and fruit

On Monday (April 12th, 21st), Federal Minister of Agriculture Julia Klöckner handed over the grant notices from her ministry for the two new research projects "VectoScreen" and "PhytoMo" via video. In the am Julius Kühn Institute (JKI) in Siebeldingen The projects worked on are about the diagnosis of flavescence dorée, in English golden yellow, and the monitoring of the pathogen causing this vine disease and the insects that transmit it. The disease is caused by a bacterium without a cell wall, a so-called phytoplasm. This quarantine pest organism, which is worth fighting, or its vector insect, the American vine leafhopper, are finding better and better conditions in local wine regions. Diseased plants and pathogens are subject to transport bans within the EU and other measures that help prevent the introduction and spread of quarantine pathogens. Both projects are funded by the BMEL as part of the tender "Innovations to avoid the introduction and spread of regulated and new harmful organisms in plants".

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April 13, 2021|

High-resolution 3D phenotyping of the root system of the grapevine using X-ray computed tomography

The Julius Kühn Institute and the University of Nottingham in Great Britain examined the roots of young potted vines of 'Calardis Musqué', 'Villard Blanc' and V3125 ('Schiava Grossa' x 'Riesling'). Non-invasive X-ray micro-computed tomography (X-ray µCT) methods were used to study the phenotypic variation of the complex three-dimensional (3D) architecture of vine roots as a function of genotype and soil. Lignified cuttings were cultivated in polypropylene columns filled with two different types of soil, clayey loam and sandy loam, for 6 weeks.
It could be shown that the individual root parameters such as B. Root length and number of side roots are clearly specific to the grape variety, i.e. genetically determined, and are less dependent on the type of soil.

read more on openagrar.de (English)
Video from Nottingham University
March 26, 2021|

Which sensory style of PIWI wines promises success?

DLR Rheinpfalz, Institute for Viticulture and Oenology, Marc Weber, Prof. Dr. Ulrich Fischer German Wine Institute, Ole Kohlmann
On the occasion of the 74th Viticulture Days 2021

Actually, they all have trumps in their hands, the mushroom-resistant grape varieties, or PIWIs for short. It has been proven that significantly reduced plant protection is required in order to harvest ripe and healthy grapes, reduced crossings protect the soil structure and lower workload and costs for plant protection, be it ecological or conventional, save the winemaker's budget. So it is surprising why in the Palatinate only 3.2 % of the vineyard area is planted with PIWIs, of which the regent alone denies 2.2%. In Rhineland-Palatinate, there are only 2.9% of the vineyard area, which is surprising, because they are predestined for steep and terraced locations where crop protection is more labor-intensive and cost-intensive. If you ask the winemakers about their reluctance to plant PIWIs, they complain about a lack of interest on the part of consumers and trading companies, while the wineries and consumers complain about a limited supply. In order to resolve this contradiction, a sub-area of the nationwide VITIFIT project of the Federal Ministry of Agriculture is concerned with improving the style of the wines made from PIWI grape varieties and their chances of success in marketing.

read more (PDF, 0.5 MB)

Conclusion: In terms of their quality potential, wines made from PiWi grape varieties are on par with the standard grape varieties. However, there is still a lack of experience as to how they can best be expanded. Consumer preferences and the derived preferred or rejected sensory attributes help here. For the future, the question arises whether PIWI wines should be good sensory “copies” of the styles of the standard grape varieties or whether they should show an independent, different, but recognizable profile as new and different.

February 25, 2021|
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