Ecophysiological Response of Vitis vinifera L. in an Urban Agrosystem: Preliminary Assessment of Genetic Variability

Urban Farm DB summary

A preliminary assessment of the adaptability of 15 Italian native and non-native Vitis vinifera L. cultivars to urban environmental stressors was conducted at the Botanical Garden of Rome during the 2021 growing season. Researchers evaluated leaf chlorophyll content, stomatal conductance, chlorophyll fluorescence, and spectral signatures. Native cultivars showed medium-high leaf chlorophyll content (>350 mol m−2), good photosynthetic efficiency (QY > 0.75), and optimal stomatal behavior under drought stress (200 > gs > 50 mmol H2O m−2 s−1), indicating site-specific resistance and resilience to urban conditions.