Grain protein content of Danyu39 was sensitive to NBPT+DCD, grain number of Zhengdan958 was sensitive to both of inhibitors.

• 大穗型品种丹玉39的蛋白质含量对NBPT+DCD的反应敏感; 中穗型品种郑单958的成粒数对两种抑制剂组合的反应敏感;