陕西省榆林市马铃薯新品种比较

目的]选择出适宜榆林市生长的马铃薯新品种。方法]以冀张薯8号为对照,对引进的7个马铃薯新品种开展比较试验。结果]陇薯13号、中薯20号、冀张薯12号与对照相比增产幅度均在10%以上,这3个品种均是块茎大、整齐度均匀,陇薯13号、冀张薯12商品薯率较高；脱毒175产量为38376.90 kg/hm2,增产幅度为4.83%,块茎中等,整齐度均匀,商品薯率比对照偏低。结论]陇薯13号、中薯20号、冀张薯12号商品性状好、产量高,适宜在榆林大面积推广；脱毒175产量比对照略高,但商品性状略差,较适宜在榆林推广。

Comparison of New Potato Varieties in Yulin City of Shaanxi Province

Objective] To select proper new potato cultivars grown in Yulin City. Method] With Jizhangshu 8 as the control, the introduced seven new potato cultivars were compared. Result] Compared with CK, Longshu 13, Zhongshu 20 and Jizhangshu 12 had more than 10% in-creasing range of yield, which had the characteristics of great tuber and even uniformity. Longshu 13 and Jizhangshu 12 had relatively high mar-ketable rate. Yield of Tuodu 175 was 38 376. 90 kg/hm2 . The increasing range of yield was 4. 83%, which had the characteristics of middle tuber and even uniformity. The marketable rate was relatively lower than that of control. Conclusion] Longshu 13, Zhongshu 20 and Jizhangshu 12 have the characteristics of good commercial characters and high yield, which are suitable for large-scale extension. Tuodu 175 has higher yield than the control, but the commercial characters are poor, which is relatively suitable for extension in Yulin City.