Analysis and Evaluation of the Regional Tests for New Potato Varieties in Fujian Province from 2021 to 2022 (Nan'an City as the Experimental Point)

The regional test for the new varieties of potatoes in Fujian Province from 2021 to 2022 was carried out in Nan'an City, in which 10 varieties were tested. By taking Feiwuruita as the control group, the agronomic characters, yield potential, stress resistance and adaptability of the tested potato varieties were comprehensively compared. The results showed that: the average yield of Minlongshu No.2 ranked the first, which was 17.93% higher than that of the control group (CK), reaching a very significant level. The variety had upright plant type, thicker stem, green stems, short stolon, and dark green leaf color. The stem number was 1.3, and the tuber type was obovate, with yellow skin and shallow bud eye. The average yield of Funongshu No.3 ranked the second, which was 8.23% higher than that of the control group (CK), reaching a significant level. The variety had upright plant type, medium stem diameter, green stems, moderate stolon, and dark green leaf color. The stem number was 1.2, and the tuber type was flat oval, with yellow skin and shallow bud eye. Therefore, the experiment and demonstration could be further expanded for the two varieties of Minlongshu No.2 and Funongshu No.3. Moreover, the five varieties such as Funongshu No.2, Minshu 208, Minlongshu No.1, Minshu 376 and Mincheng No.6 had aesthetic tuber types and good agronomic characters, which could be further tested in different production areas of potatoes. The cultivation should be selected in the mild occurrence area of late blight disease, and the prevention and control for the late blight disease of potatoes should be done well, thus to observe the yield performance and the adaptability of potatoes.