Hans Reiner Schultz

Prof. Dr. Hans Reiner Schultz

Func­tion: Pres­i­dent
Or­ga­ni­za­tional Unit(s):Pres­i­dent
Con­tact:
Phone: +49 6722 502 201
eMail: Hans.​Reiner.​Schultz(at)hs-​gm.​de
Postal Ad­dress:Von-Lade-Straße 1
D-65366 Geisen­heim
Ad­dress: Build­ing 5901
Room 117
Von-Lade-Straße 1
65366 Geisen­heim
Publications
Research Projects

Project start: 01.07.2016
Project end: 31.08.2018
Sponsor: Hessen State Ministry of Higher Education, Research and the Arts

Climate change cannot currently be ignored and impacts all fields of agriculture. IPCC reports forecast an increase of up to 700 ppm of atmospheric carbon dioxide concentration at the end of the 21st century. Parameters such as elevated global temperature, reduced precipitations in certain areas of the world and increase of atmospheric carbon dioxide concentration are modifying plants’ environment. Grapevine, which is a crop of economic and cultural importance, is very sensitive to climate modifications. The effects of temperature or water stress on grapevine has been widely investigated, and elevated carbon dioxide has been mainly studied in enclosed systems such as greenhouses. However, the impact of increased concentration of carbon dioxide on plants in open-field experiments remains scarcely studied because of the technical challenge that it represents. In this context, the aim of this PhD work was to investigate the impact of elevated carbon dioxide concentration using the set-up VineyardFACE located at Geisenheim University. This open field set-up enables to apply a moderate and gradual increase (+20%) of ambient carbon dioxide concentration on two grapevine cultivars, Riesling, and Cabernet Sauvignon. While knowing the impact of elevated carbon dioxide treatment on leaf physiology and vegetative growth from previous studies (Wohlfahrt et al., 2018), as well as on berry composition during the early years of fumigation, the goal of this study was to determine the effects of elevated carbon dioxide treatment on agronomical traits, primary metabolites (sugars, organic acids, amino acids) and secondary metabolites (anthocyanins, terpenes) on vines undergoing six years of fumigation, as well as monitoring berry development and following berry ripening for successive seasons. Intermediates from central metabolism were also studied for two years (2020 and 2021), and terpene analysis was realized on Riesling must 2021. Our results showed that although photosynthesis was still enhanced, little effects were found of

Project start: 01.01.2014
Project end: 31.12.2017
Sponsor: Hessen State Ministry of Higher Education, Research and the Arts

Within the FACE2FACE experiment the effects of climate change on agricultural ecosystems such as grassland and specialized crops are investigated. For the cultivation of specialized crops, particular emphasis is placed on plant physiology as well as ingredient composition of harvested material. In the subproject “AP 3.1 Ingredients & product quality – vegetables” the effects of elevated CO2 in interaction with reduced water supply on ingredient composition of spinach, radish and cucumber are investigated.

Project start: 01.01.2013
Project end: 31.12.2016
Sponsor: European Commission

InnoVine is a European collaborative project funded through the Knowledge Based Bio-Economy (KBBE) program, launched in January 2013.  During 4 years, it will involve 27 different partners from 7 European countries (Bulgaria, France, Germany, Hungary, Italy, Portugal and Spain).

Project start: 01.06.2010
Project end: 31.03.2013
Sponsor: Federal Ministry of Food and Agriculture

Hochschule Geisenheim
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