１９９７年玉米苗期遭受严重干旱侵袭，京郊很多农田出苗率不到５０％，许多地块不得不重新播种，使北京郊区秋粮产量受到影响。如何在水分胁迫条件下，提高玉米出苗率成为亟待解决的问题。我们做了植物生长调节剂处理玉米种子试验，探讨其保水促苗抗旱的作用，结果如下。... In 1997, the seedling stage of maize was hit by severe drought. The germination rate of many farmland in the suburbs was less than 50%. Many plots had to be replanted, which affected the output of autumn grains in the suburbs of Beijing. How to improve the emergence rate of corn under the condition of water stress has become an urgent problem to be solved. We made the plant growth regulator corn seed treatment, to explore the role of water and promote seedling drought, the results are as follows. ...