Original ResearchPublished 9 October 2026Optimizing cultivation density for Pseudostellaria heterophylla : a novel evaluation strategy integrating electrophysiological and traditional traits for early growth indicationXiaolong Li · Shiyi Pan · Zelan Wang · Chenglin Tang · Bing Tian · Qiuping Wang · Cheng Zhang · Jun LiFrontiers in Plant Sciencedoi 10.3389/fpls.2026.1943951