苹果非生物胁迫抗性评价体系

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中图分类号：S661 文献标识码：A 文章编号：0488-5368（2025）12-0016-06

Abstract：Shaanxi Province has been recognizedby the Food and Agriculture Organization of the United Nations as one ofthe world’s most suitable apple -producing regions and is the largest contiguous area for apple cultivation globally. Theregions high altitude，abundant sunlight，and large diurnal temperature variation contribute to the superior apple fruit quality.However，abiotic stresss such as drought，salinity，and poor soil conditions，are major constraints limiting further improvements in apple quality and production eficiency in Shaanxi. A systematic evaluation of drought resistance，salt -alkali tolerance，and water and nitrogen use eficiency under drought conditions across diverse apple germplasm resources provides a critical foundation for breeding high - quality，stress -resistant apple cultivars and for ensuring the sustainable and high-quality developmentof the apple industry in Shaanxi.

Key words： Drought； Saline alkali； Water use ffciency； Nutrient utilization efficiency；Evaluation

苹果是全球温带地区最具经济价值、最受欢迎的果树之一。（剩余10945字）