Rapid measurement of total non-structural carbohydrate concentration in grapevine trunk and leaf tissues using near infrared spectroscopy

Abstract

Carbohydrate assays are commonly used in crops and plant research to understand the way in which carbohydrates are allocated within the vine and to assess its influence on the physiology and phenology of the plant. Total non-structural carbohydrate (TNC) concentration is normally assessed by wet chemistry methods which are time consuming and costly, especially when studying carbohydrate dynamics over seasons. Near infrared (NIR) spectroscopy is a fast and easy technique that has lately gained wide acceptance for the analysis of the chemical composition of grain, food, wine, pharmaceutical products, among others. Near infrared is the region of the electromagnetic spectrum between 750 nm and 2..