本试验以玉米、小麦、水稻种子为材料,采用红四唑染色法、靛红染色法、红墨水染色法测定种子生活力,用普通发芽试验测定种子发芽率的两组结果对比法,研究生活力与发芽率两者的相关性,运用生物统计分析方法,计算出生活力(x)与发芽率(y)的相关系数r=0.9734,为极显著正相关。求出回归方程了y=-0.55+0.9958x。应用本公式,可测出种子生活力,立即算出相应的发芽率, In this experiment, the seed vigor of corn, wheat and rice seeds were determined by the methods of red tetrazolium staining, isatin red staining and red ink staining, and the germination rate of seeds was measured by ordinary germination test. And germination rate of the two, the use of biostatistics analysis method, calculate the viability (x) and the germination rate (y) correlation coefficient r = 0.9734, a very significant positive correlation. Find the regression equation y = -0.55 + 0.9958x. Application of this formula can measure the viability of seeds, calculate the corresponding germination rate,