为优化核桃地方种质资源，丰富核桃优良品种，采用综合评价方法选育出的核桃新品种陇核4号，该品种核桃坚果平均折合产量3 051.19 kg/hm2，比对照品种清香增产19.14%。坚果壳厚度0.79 mm，果仁饱满，出仁率63.4%，较抗晚霜冻。2021年通过甘肃省林木良种审定，适宜在甘肃省陇东南丘陵地区栽培。

To optimize the local germplasm resources and to enrich the walnut variety, comprehensive evaluation method was applied to breed a new walnut variety Longhe 4. The average yield of nuts for this variety was 3051.19 kg/ha, which was 19.14% higher than that of the control variety Qingxiang, other characters were 0.79 mm of average shell thickness, full kernel, 63.4% of kernel rate, and resistance to late frost. In 2021, it passed the examination and approval of Superior Tree Varieties in Gansu Province and is suitable for promoting cultivation in the southern hilly areas of Gansu province.

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