terclim by ICS banner
IVES 9 IVES Conference Series 9 OIV 9 OIV 2024 9 Short communications - Viticulture, table grapes, dried grapes and unfermented grape products 9 Effects of different crop load and pruning aplications on vi̇ne growing, grape yi̇eld and quality parameters of early sweet (Vitis vinifera L.) grape variety

Effects of different crop load and pruning aplications on vi̇ne growing, grape yi̇eld and quality parameters of early sweet (Vitis vinifera L.) grape variety

Abstract

It is important to examine the yield and quality elements of table grape varieties. There are great differences in winter and summer pruning of the “Early Sweet” grape variety. For this reason, in the study, the effects of different crop loads and pruning processes on yield, quality characteristics and vine development of the Early Sweet (Vitis vinifera L.) grape variety were investigated. The study were designed to determine the yield-quality and vine development of the “Early Sweet” grape variety. Although there was no statistical difference between the applications in the 2023 production year, the best yield, especially in the applications carried out in the 2022 production year, was determined by the average cluster weight, cluster length and width, cluster stem width and length, number and weight of fallen berries, fresh and dry weight of the cluster skeleton, 100-berry weight, berry detachment force, water soluble dry matter% and titratable acidity parameters were determined in non-cluster treatments of 15- and 25- cluster loads on short pruning. The most appropriate pruning should be recommended as short and medium one with 25 cluster/vine.

Effetti dei diversi carichi di raccolto e delle applicazioni di potatura sulla vite, la resa dell’uva e i parametri di qualità della varietà di uva precoce dolce (Vitis vinifera L.)

E importante esaminare gli elementi qualitativi della resa delle varietà di uva da tavola. Ci sono grandi differenze nella potatura invernale ed estiva del vitigno early sweet. Per questo motivo, nello studio sono stati studiati gli effetti di diversi carichi colturali e processi di potatura sulla resa dell’uva, sulle caratteristiche qualitative e sullo sviluppo della vite nel vitigno early sweet (Vitis vinifera L.). Le pratiche nello studio sono state progettate per determinare la qualità della resa e lo sviluppo della vite del vitigno early sweet. Sebbene non vi sia stata alcuna differenza statistica tra le applicazioni nell’anno di produzione 2023, la resa migliore, soprattutto nelle applicazioni effettuate nell’anno di produzione 2022, è stata determinata dal peso medio dei grappoli, dalla lunghezza e larghezza dei grappoli, dalla larghezza e lunghezza del gambo dei grappoli, numero e peso dei chicchi caduti, peso fresco e secco dello scheletro del grappolo, peso di 100 chicchi, forza di rottura del raspo, ssc% e parametri di acidità titolabile sono stati determinati in applicazioni senza spighe di 15 e 25 grappoli su potature corte. Tuttavia, la potatura migliore per il vitigno early sweet può essere quella corta e media, con un carico di grappoli più appropriato pari a 25.

Auswirkungen verschiedener pflanzenbelastungen und schnittanwendungen auf den weinanbau, den traubenertrag und qualitätsparameter der frühsüssen (Vitis vinifera L.) Rebsorte

Es ist wichtig, die ertragsqualitätselemente von tafeltraubensorten zu untersuchen. Es gibt große unterschiede beim winter- und sommerschnitt der rebsorte early sweet. Aus diesem grund wurden in der studie die auswirkungen unterschiedlicher erntemengen und schnittprozesse auf den traubenertrag, die qualitätsmerkmale und die rebenentwicklung der rebsorte early sweet (Vitis vinifera L.) Untersucht. Die praktiken in der studie waren darauf ausgelegt, die ertragsqualität und die rebentwicklung der rebsorte early sweet zu bestimmen. Obwohl es keinen statistischen unterschied zwischen den anwendungen im produktionsjahr 2023 gab, wurde der beste ertrag, insbesondere bei den anwendungen, die im produktionsjahr 2022 durchgeführt wurden, durch das durchschnittliche traubengewicht, die traubenlänge und -breite, die traubenstielbreite und -länge bestimmt. Anzahl und gewicht der gefallenen körner, frisch- und trockengewicht des traubenskeletts, 100-körner-gewicht, stammbruchkraft, ssc-prozentsatz und titrierbare säuregehaltsparameter wurden bei der anwendung von 15 und 25 traubenbündeln auf kurzem schnitt bestimmt. Als bester schnitt für die rebsorte early sweet kann jedoch ein kurzer und mittlerer schnitt empfohlen werden, wobei die am besten geeignete traubenbeladung bei 25 liegt.

DOI:

Publication date: November 18, 2024

Issue: OIV 2024

Type: Article

Authors

Ahmet Altındişli1, Ali Abbas Ali Mostafa1

¹ Ege University – Department of Horticulture, İzmir, Turkey

Contact the author*

Tags

Full papers OIV 2024 | IVES Conference Series | OIV | OIV 2024

Citation

Related articles…

Evaluation of uhph treatment as an alternative to heat treatment prior to the use of proteolytic enzymes on must to achieve protein stability in wine

There are currently enzyme preparations on the market with specific protease activities capable of degrading unstable must proteins and preventing turbidity in white and rosé wines. The main drawback is the need to heat the must at 75ºc for 1-2 minutes to denature the proteins and facilitate enzyme action.

Exploring the dynamic between yeast mannoproteins structure and wine stability

Mannoproteins are macromolecules found on the surface of yeast cells, composed of hyperbranched polysaccharide negatively charged chains by mannosyl-phosphate groups, fixed to a protein core. during the alcoholic fermentation and aging on lees, these mannoproteins are released from the yeast cell wall and become the main yeast-sourced polysaccharide in wine. due to their techno-functional properties, commercial preparations of mannoproteins can be used as additives to better assure tartaric and protein stability.

Italy sweet revolution: how club grapes are transforming the table grape market

Italy is the leader table grape producer country in Europe and the eighth worldwide (OIV, 2021). The italian production area is sized at approximately 47,248 hectares with a production of 9.66 million quintals of grapes. Apulia and sicily are the main producing italian regions which collectively account for over the 90% of the italian production area (istat, 2022).

Do we have convergence or divergence in firms’ production and business practices in the global wine industry? 

Wine production is a globally significant and intricate industry, characterized by diverse regions, grape varieties, and producers. Competitive advantage in wine production and marketing arises from localized natural attributes known as terroir, combined with transferable expertise in agronomic practices, winemaking methods, packaging, distribution, and marketing. Wine is a very globalized product with 40% of the total output exported. Globalization has prompted discussions on convergence of business and production practices across industries, driven by technological progress and adoption of international standards. However, persisting differences in cultural norms, institutional frameworks, and regulatory environments hinder full convergence.

Correlation between stable isotopic composition of the fungus aspergillus niger and its growth substrate and the extracted chitin

Wine is one of the most consumed and appreciated beverages in the world. Due to the growing attention paid to consumer health, there is a continuous search for sustainable alternatives to common additives (such as sulfur dioxide) used to preserve wine. An example is represented by chitosan, the main derivative of chitin, approved for the treatment of must and wine since 2009 by the “international organization of vine and wine” (OIV/OENO 338a/2009) and by the european commission (EC Reg. No. 606/2009).