通过株高、穗粒数、总小穗数、单株有效穗、单株粒重、千粒重与生物学产量和收获指数的线性回归关系的研究，明确增加每穗粒数同时可以提高生物学产量和收获指数。就怎样提高每穗粒数进行了初步探讨，提出了稳步提高每穗粒数，适当增加千粒重，挖掘穗部产量潜力，获得高产的观点。 The linear regression relationship between plant height, number of spikelets per plant, number of spikelets per plant, effective panicle per plant, grain weight per plant, 1000-grain weight and biological yield and harvest index was studied. It is clear that increasing grain number per spike and improving biological yield And harvest index. How to improve the number of grains per spike was discussed. The suggestion was put forward that the grain number per spike should be increased steadily, the grain weight should be increased properly, the yield potential should be tapped to obtain high yield.