粉锈宁处理麦种,可使苗长显著缩短,茎根比值减小,而赤霉素则能逆转这种作用。提高土壤湿度可以部分消除药剂所引起的这种影响。通过药剂与生长调节剂混配试验.提出了克服药害的两个种子处理最佳组合.在粉锈中加入适量赤霉素处理麦种,可促进出苗、分蘖及增加有效穗数和产量。试验还明确了药剂种子处理后翌春喷洒井岗霉素或粉锈宁接力防治小麦纹枯病的最适时期为小麦拔节后期。 Triadimefon treated wheat, can significantly shortened the seedling, root ratio decreased, while gibberellin can reverse this effect. Increasing soil moisture can partially eliminate this effect caused by the agent. The best combination of the two seed treatments to overcome the pesticide damage was proposed by adding the agent of gibberellin to the wheat flour, which can promote seedling emergence, tillering and increase the effective spike number and yield. The experiment also made it clear that the optimal spraying period of spraying Jinggangmycin or Feningning against wheat sheath blight in the next spring after the medicament seed treatment is the late stage of wheat jointing.