Abstract:

In order to reduce the use of synthetic chemicals and explore new sprout suppressants. Sprouting rate, sprout growth and weight loss ratio of potato tubers (cv. Longshu no.3) treated with different concentration of naphthaleneacetic acid, cinnamaldehyde, acetaldehyde and ethepon were detected and analyzed for their inhibiting effect assessment. The results showed that 10 mmol/L naphthaleneacetic acid, 500 mg/kg cinnamaldehyde, 250 mg/kg acetaldehyde and 50 mg/kg ethepon could effectively control sprouting and their sprouting rates were only 61%, 65%, 78% and 79% respectively compared to the control. Sprout growth of potato tuber was delayed by naphthaleneacetic acid and ethepon treatment at 10 mmol/L and 50 mg/kg respectively. Moreover no significant differences of weight loss ratio were found between four kinds of new sprout suppressants treated potato tuber and the control. The results suggested that these 4 kinds of new sprout suppressants might have potential practical use prospect for sprout inhibiting and quality keeping of potato tuber.