"Super white" potato

Characteristics: the growth period is short, about 60 days from emergence to maturity. The plant grows luxuriantly, the growth potential is strong, the plant height is moderate, the average 40cm is about, the stem is stout. The leaves are hypertrophy and spreading, and the leaves are dark green. The flower is white, and the average degradation index of virus disease is 2.23-9.97%. The tuber is concentrated, the tuber is round, white skin and white meat, large and neat, the average rate of large and medium potato is 71.0-73.7%, the skin is smooth, the quality is good, the starch content is 12.54 mi 13.39%, and the crude protein content is 1.78%.

Main points of cultivation: seed potato sprouting, early sowing, 5000 seedlings per mu, re-application of high-quality rotten basic fertilizer, strengthening management and timely irrigation, suitable harvest. The method of seed retention in the northern region is the same as that in the general method, and it is better to keep the seed in cold storage or spring and summer sowing in the degraded south. Due to the light and slow degradation of this variety, satisfactory yield can also be obtained by using spring potato to keep seeds and strengthening storage management.

The experiment and demonstration showed that the yield of "super white" potato was higher than that of the control in all levels of breeding experiments. The average yield of 2150kg per mu was more than 4000kg in the three provinces of Northeast China and Inner Mongolia. This variety can be cultivated all over the country. The annual seed production is about 3 million jin, and the planting area can reach about 150000 mu.