Institut für Pflanzenschutz in Obst- und Weinbau
The "QualiSelect" project focuses on the development of a single-vine precision mechanical grape harvest in precision viticulture. To ensure this requires the vine-related acquisition and documentation of relevant plant physiological and phytopathological parameters such as growth or disease infestation of the vines, whether by ground-based proximal sensing or UAV-based remote sensing, as well as the processing and integration of the obtained data into the management system and a quality-oriented and differential management and harvesting strategy. This is intended to reduce resource consumption on the one hand, and to optimize quality-oriented production within the framework of selective measures on the other. The widespread use of grape harvesters plays the most important role in maintaining economic efficiency, since grape harvesting is the main work peak. While low-quality grapes (from diseased, poorly growing or drought-stressed vines) can be selected during manual harvesting, selective harvesting of individual vines with harvesters is currently not possible, either in plain vineyards or on steep slopes. Sensor-controlled, precise switching on and off of the beater system of mechanical harvesters for individual vines and calibration of the control software on harvesters should make it possible to harvest selectively on a vine-by-vine basis. The influence of quality-reducing factors is reduced, as the crop to be discarded does not even come into contact with healthy or selectively chosen crop due to the selective harvesting and the adapted control of the crop transport. The task of the JKI in the joint project is to collect reference data on the vitality and disease infestation of the vines and to verify infections by diagnostic procedures.
Federal Ministry of Food and Agriculture
