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Tag: maturity monitoring and harvest

Posted on June 20, 2019June 20, 2019

Introduction to Mechanical Harvesting of Wine Grapes

More Info

Keith Striegler and Tammy Jones, University of Missouri

As skilled vineyard labor becomes less available and more expensive to obtain, many vineyard operations are looking to machinery to accomplish tasks previously done by hand. Mechanical harvesting has been …

Posted on June 20, 2019June 20, 2019

Basic Grape Berry Structure

Skin       Flesh       Seeds       Vascular tissues       For more information

William McGlynn, Oklahoma State University

The structure of the grape berry may be roughly divided into three tissue types: skin, flesh, and seed (Figure 1). The chemical composition of each of these …

Posted on June 20, 2019June 20, 2019

Collecting Berry Samples to Assess Grape Maturity

Reasons for Sampling       Differences in Maturity       How to Take Samples       More Info

William Nail, The Connecticut Agricultural Experiment Station

Reasons for Sampling

Fruit sampling is done for several reasons between veraison and harvest. While it is frequently used to plot …

Posted on June 20, 2019June 20, 2019

Fruit Maturity Evaluation of Wine Grapes for Harvest Planning

What is Grape Maturity?       Measuring Ripeness       Sampling Prep & Analysis       More Info

Ed Hellman, Texas AgriLife Extension

Harvesting wine grapes at optimal fruit maturity, or ripeness, presents many challenges, not the least of which is accurate assessment of fruit ripening. …

Posted on June 20, 2019June 20, 2019

An Introduction to Environmental Influences on Ripening in Grapes: Focus on Wine Grapes and Phenolics

Canopy Management & Fruit Quality       Berry Microclimate       Phenolic Development       For more information

Julie M. Tarara and Jungmin Lee, United States Department of Agriculture, Agricultural Research Service

“Quality” in winegrapes has historically been loosely defined by berry maturity or “sugar ripeness,” …

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This is a national Cooperative Extension resource

This work is supported in part by New Technologies for Agriculture Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

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