Carbohydrate Content of Various Parts of the Grape Cluster

The percent stems by weight in seven varieties varied from 1.3 to 6.0. 2. There was usually more sucrose and starch in the main stem than in the lateral branches of the fruit clusters. 3. There was usually more reducing sugar in the lateral branches of the stem and particuarly in the brush than in the main stem. 4. The tannin content of the stems varied from variety to variety and from the main stems to the side stems.