Keyan Fang¹ , Zhongmei Hong²

1 Institute of Life Science, Jiyang College of Zhejiang AandF University, Zhuji, 311800, China
2 Hainan Provincial Institute of Biological Engineering, Haikou, 570206, Hainan, China
Author    Correspondence author
Molecular Soil Biology, 2025, Vol. 16, No. 6   
Received: 04 Oct., 2025    Accepted: 11 Nov., 2025    Published: 04 Dec., 2025

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

As water resources become more limited and climate conditions keep changing, good irrigation planning is very important for stable potato yield. This study compared yield performance under full irrigation, mild deficit irrigation, and moderate to severe deficit irrigation. Potato varieties with different maturity types and different genetic backgrounds were tested. Differences in water use efficiency were also analyzed. The response of potato to water supply was clearly different among varieties and also varied at different growth stages. Different varieties use different ways to adapt to low water conditions. Matching suitable potato types with proper irrigation methods, and applying moderate deficit irrigation during non-critical growth stages, can help save water while keeping stable yield. This also improves potato adaptation to climate change.

Potato (Solanum tuberosum L.); Deficit irrigation; Varietal differences; Yield components; Water use efficiency