[Studies on germination characteristics of Prunella vulgaris seeds]

To understand the effect of illumination, temperature on the germination of the Prunella vulgaris seeds.

The general germination method.

Illumination showed no clearly effect on the germination rate of the P. vulgaris seeds under proper temperature condition; However, illumination was the main factor to determine the germination rate of the P. vulgaris seeds when the temperature condition was unsuitable. The germination rate of the P. vulgaris seeds decreased with the time and increased when the marinating time was from 12 to 36 hours. When temperature reached 5-25 9 degrees C, the trend of the germination rate increased at frst and then decreased.

The optimal germination condition of P. vulgaris seeds is 12 h of marinating time at the temperature of 20 degrees C under illumination.