Is there any influence of biodynamic preparation 501 on the physiological activity of grape leaves cv. Cesanese d’Affile?

Chemical and Biological Technologies in Agriculture

Research

Elena Brunori¹  Laura Buzzi¹  Brunella Ceccantoni¹  Rosario Muleo²  Alessandro Bianchi³  Fabio Mencarelli³  Stefano Pettinelli³ 

[1] Department for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Via De Lellis, 01100, Viterbo, Italy;Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, 01100, Viterbo, Italy;Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy;

关键词: Biodynamic viticulture;    Horn silica;    Chitinase;    Chlorophylls;    Enzymatic activity;   

DOI  :  10.1186/s40538-023-00492-7

 received in 2023-08-05, accepted in 2023-10-12,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundBiodynamic agriculture is a management approach that aims to reduce the reliance on agrochemicals for production by emphasizing the use of specific natural preparations. A 2-year field trial spanning 2019–2020 was conducted in an established vineyard (Vitis vinifera L., cv. Cesanese d’Affile) to elucidate the impact of the cow horn silica biodynamic preparation (BD-501) on leaf vine physiology, potential resistance via chitinase activity, and analysis of secondary metabolites. The vineyard under biodynamic management was divided into two plots: one treated with BD-501 (BD-501) and the other untreated (BD). Throughout the vine growth season, measurements of carotenoid and chlorophyll levels, polyphenols, and chitinase activity were taken around key phenological phases (BBCH scale). During the ripening phase, a fluorometer was employed to assess chlorophyll fluorescence in the leaves.ResultsLeaves treated with BD-501 exhibited elevated concentrations of polyphenols and increased chitinase activity during the later phenological phases. In contrast, the untreated BD samples demonstrated high values primarily in the central phase of the observation period but not consistently throughout. At the time of harvest, chlorophyll concentration and quantum yield exhibited no statistically significant differences. BD-501 triggered a distinct response in terms of potential defense mechanisms (elevated polyphenols and chitinase activity) during the veraison phase. However, conversely, lower levels of chlorophylls and carotenoids were observed.ConclusionsNevertheless, a further round of experimental work is required to thoroughly comprehend the regulatory mechanisms behind this adaptive response and to ascertain the efficacy of BD-501.Graphical Abstract

【 授权许可】

CC BY   
© Springer Nature Switzerland AG 2023

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