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Abstract

This study investigated the effects of different cultivation conditions on the quality of Liaoning sweet cherries in China. using the main cultivated variety, ‘Hongdeng’, as the experimental material, we analyzed how factors such as month, region, greenhouse age, greenhouse film parameters, and different cultivation facilities influence fruit quality. May harvests showed higher sugar (10.48%) and firmness (3.15 kg/cm2), but lower vitamin C (5.46 mg/100g) and protein (947 µg/g) compared to April. Jinzhou and Zhuanghe regions exhibited optimal total sugar content and nutritional indicators due to fertile soil and suitable temperature differences. The light blue 0.1mm greenhouse film treatment increased sugar content (15.53%) by 36.4% compared to white film, while white film yielded the highest Vitamin C content (7.11 mg/100g). The north-south orientation resulted in yielded 12.3% higher Vitamin C and protein content than east-west orientation, but 18.7% lower sugar content. This study provides optimized cultivation recommendations for Liaoning cherries: white-film solar greenhouses are recommended for early-ripening areas, while light blue-film plastic greenhouses are suitable for late-ripening areas. Harvest timing should be selected based on market demand—April for high-nutrient fruit or May for superior taste. This research offers scientific basis for optimizing sweet cherry cultivation conditions and enhancing quality, and has important implications for guiding local agricultural production and promoting industrial development.

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