本文通过对玉米同一品种不同籽粒大小的种子活力差异进行研究,结果表明,同一品种不同种子大小的活力指数之间有差异,大种子活力指数比小种子的活力指数高。同一品种不同种子大小对种子活力和幼苗生长影响较大,大粒种子活力明显高于小粒种子。 In this paper, we studied the differences in seed vigor between different seed sizes of the same variety of maize. The results showed that there were differences between the vigor indices of different seed sizes of the same variety, and the vigor index of the large seed was higher than the vigor index of the small seed. The same variety of different seed size on the seed vigor and seedling growth greater impact, large seed vigor was significantly higher than the small seed.