, the germination and the root growth of Zea mays L. were stimulated while those of Arachis hypogaea L were inhibited.

• 橡胶根系周围土壤对玉米种子的萌发和根生长都有少量促进作用，橡胶根系周围的土壤对花生的萌发和根生长有抑制作用。