Journal of Food, Agriculture and Environment

Using magnetic resonance imaging technique (MRI) to investigate graft connection and its relation to reddening discoloration in grape leaves

Author(s):

Elman Bahar ¹, Ilknur Korkutal ^1*, Alain Carbonneau ², Gulcin Akcay ¹

Recieved Date: 2010-07-22, Accepted Date: 2010-11-10

Abstract:

This study analyzes the general characteristics and internal affinity conditions measured by MRI in Merlot N/R110 showing abnormal development in graft union and a reddening leaf discoloration in early August. Differences between graft union and rootstock diameter were calculated and, according to standard deviation, were classified into 4 groups. The lowest affinity coefficient (3.38), shoot length (74.67 cm), and shoot diameter (6.7 mm) were obtained from the greatest value differences between graft union diameter and rootstock diameter with all plants showing a reddening discoloration in their leaves (100%); this group comprises 15% of the grapevines. The first group comprises 12.5% of the grapevines, all of which have green leaves and the lowest difference value between graft union diameter and rootstock diameter; based on that, the greatest shoot length (130.2 cm) and affinity coefficient (5.9) values were obtained. In the near future, the use of MRI imaging methods is expected to be widespread. If the costs of using this instrument can be reduced, MRI can prove to be a very useful tool to determine the connection degree on grafted vine and grouping by their connection success before marketing.

Keywords:

MRI, Vitis vinifera L., grafting, connection, affinity

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Journal: Journal of Food, Agriculture and Environment
Year: 2010
Volume: 8
Issue: 3&4
Category: Agriculture
Pages: 293-297

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