Grapevine Growth and Irrigation]{The Impact of Seasonal Temperature and Water Transport on the Growth of Sunshine Rose Grapevines and Precision Irrigation Strategies

Ranran Wang¹Zhen Han²Yingxiu Li³Suya Shang²Bo Li^2*Xin Lu^4*

• ¹College of Mechanical and Electronic Engineering，Engineering Laboratory of Agricultural Equipment Intelligence, Shandong Agricultural University, Taian, China
• ²Shandong Academy of Grape, Jinan, Shandong Province, China
• ³College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian, China
• ⁴Faculty of Science and Engineering, Iwate University, Morioka, Iwate, Japan

This study explores the seasonal variations in grapevine growth and sap flow, with a particular focus on how environmental factors influence key growth indicators. Grapevines are highly sensitive to seasonal changes, and understanding these variations is essential for optimizing vineyard management practices. Given the increasing importance of precision agriculture, high-precision sensors were employed to monitor sap flow, leaf temperatures, and ambient temperature over the course of a year. By collecting data on these physiological indicators, we aim to identify patterns that can improve our understanding of grapevine responses to environmental changes. Our findings reveal significant seasonal fluctuations in grapevine growth, with the most growth occurring during the warmer months (spring and summer) and slower growth in winter. The comparison of predictive models, including Prophet, LightGBM, and XGBoost, demonstrated that machine learning models were more accurate in predicting grapevine growth compared to traditional methods. These results offer important insights into the relationship between grapevine physiology and environmental conditions, providing a foundation for improving vineyard management practices. The grape variety utilized in this study is Sunshine Rose (Shine Muscat), known for its distinctive sweet flavor and high economic value, making it a popular cultivar in vineyards worldwide.