The present study demonstrated that temperature shifts applied before the apparition of the germ tubes induced lag time for germination. In contrast to previous studies that only compared the complete observed and predicted germination curves, the present study was based on the calculation of theoretical and observed germination times, thus may be explaining the different conclusions of the studies. Moreover, the effects of the shifts on the induced lag time depended greatly on the physiological state of the conidia, i.e., the phase of germination. Combined effects of the direction, the instant, and the magnitude of the shifts were highlighted. The results obtained suggested that under optimum temperature, the rate of germination is greater at the beginning than at the end of the process. It is also suggested that the relationship between the rate of germination and the time, is temperature dependent.