Ligther water-stress could stimulate the root growth in Cichorium intybus L. cv Puna and Rumex K-l.三种牧草种子的发芽率、胚芽长及串叶松香草胚根长均随水分胁迫强度的加大而下降，轻度干旱可刺激普那菊苣和鲁梅克斯K-胚根生长。