Germination is one of the main reasons causing potato storage loss. In order to investigate the
sprout inhibition effect of mint essential oil on storaged potato breeder seeds，this paper designed 4 mint essential
oil concentration gradient（0，20，50，80 μL·L^-1） to treat 3 potato breeder seeds of‘ Yunshu 603’、
‘Yunshu 401’ and‘ Ziyun No.1’，and measured their germination rates and bud lengths of potato tubers at 0，
13，41，48，66 and 91 days after storage，respectively. The results showed that compared with the contrast， the
germination rate and bud length of these 3 potato varieties were significantly decreased after 3 months treatments
by mint essential oil and storage under room temperature. When the mint oil concentration reached 80μL·L^-1，
the germination rates and bud lengths of these 3 potato varieties were all lower than that of the other treatments，
showing the rule of the higher concentration of mint essential oil，the more obvious of sprout inhibition effect. But
the sprout inhibition effects of‘ Yunshu 401’ treated with the concentration of mint essential oil by 20μL·L^-1 and
80μL·L^-1 were better than that by 50μL·L^-1，showing the fact that besides the concentration of mint essential
oil concentration，the potato variety was also related with the sprout inhibition effect.