LEAF MATCHER

By making a few simple measurements, and then using the following search application, you can check whether a grapevine leaf belongs to a variety we have in our collection. Look at the next figure and follow these simple steps:

When was the leaf collected?

Between budsetting and veraison

Budsetting

Veraison

Which leaf should you take?

What measurement need to be made?

• 1- Using a protractor, measure angle A just as shown in the figure, and put the answer in the search engine’s first field.
• 2- Now, using a ruler, measure L, S1d and L1d, and put the data (in cm) into the corresponding fields.
• 3- Press ‘search’ , and you will be given a list of varieties that match your measurements.