Gas chromatography-mass spectrometry was used to quantify volatile components at different developmental stages, and the impacts of rain-shelter microclimate on aroma metabolic pathways were analyzed.
Key Findings:
Rain-shelter cultivation reduces grape disease incidence but alters the accumulation rhythm of terpenoids and ester aroma compounds.
The critical developmental window for aroma biosynthesis of Crystal grape fruit was identified.
Ventilation and light transmission schemes for rain-shelter cultivation of Crystal grape on Yunnan plateau were optimized to balance yield and fruit flavor.