Test made in a vineyard. Credit: Elhuyar Fundazioa
Researchers at the NUP/UPNA-Public University of Navarre have designed two types of sensors whose innovative technologies obtain information on the water status of a vineyard. The work has been developed by a NUP/UPNA multidisciplinary team in collaboration with various Navarrese companies.
The first of these sensors does not require contact with the plant, and works by capturing information in the terahertz range. "These devices transmit a terahertz signal and measure what proportion of the signal is returned by the trunk of the vine," explained Gonzaga Santesteban-García, lecturer in the Department of Agricultural Production and leader of the research project. "It involves reflectance technology without any contact with the plant. That way, we can check the plant's water status. It is a technique that has not been used before for this purpose." The results of this development have been published in the journals Frontiers in Plant Science and the Journal of Infrared, Millimeter and Terahertz Waves.