| 【Objective】The study is to screen out red-skinned potato varieties（lines）suitable for planting in
Guangdong area to enrich the potato varieties in that province.【Method】With Favorita as the control, a comparative
experiment was carried out on the introduced red-skinned potato varieties（lines）, and the phenological period, agronomic
characters, economic characters and yields of various varieties（lines）were investigated.【Result】All the tested varieties
could mature in Guangzhou. Among them, Qingshu 9, Huashu 1, S14-1743, S14-1747 had a greater yield increase than the
control. Qingshu 9 had the highest yield of 37 500.0 kg/hm2, which increased by 37.0% compared with the control; Huashu 1
ranked second with a yield of 35 912.7 kg/hm2, which was 31.2% higher than that of the control; S14-1743 ranked third with
a yield of 34 722.2 kg/hm2, which was 26.8% higher than that of the control; S14-1747 ranked fourth with a yield of 33 333.3
kg/hm2, which was 21.7% higher than that of the control. Meanwhile, the above four varieties had lower disease incidence,
strong growth potential, shallow or medium eyes, and high commodity rate.【Conclusion】Qingshu 9, Huashu 1, S14-1743,S14-1747 showed higher yield and good disease resistance. It is suggested that four varieties（lines）should be planted in
some place for comparison test in the future to determine their regional adaptability. |
