为选育适宜秦巴山区冬闲桑园套种的中早熟马铃薯品种，试验选择外引、选育马铃薯品种(系)4个，通过分析评价得出，覆膜后0302-4商品薯率97.66%，亩产1242.74 kg，比不覆膜增产16.66%，综合性状表现优，适合秦巴山区地区作为中早熟品种扩大生产试验，供生产选择。覆膜后0402-9亩产1357.26 kg，居试验第一位，但商品薯率最低只有88.24%，需进一步种植观察。
In order to select mid-early maturing Potato Varieties Suitable for interplanting in winter fallow mulberry garden in Qinba mountain area, our introduced and self bred potato varieties (lines) were selected. Through analysis and evaluation, it was concluded that the commercial potato rate of 0302-4 after film mulching was 97.66%, the yield was 1242.74 kg per mu, which was 16.66% higher than that without film mulching. The comprehensive character performance was excellent. It was suitable for expanding production test as mid-early maturing varieties in Qinba mountain area for production selection. After film mulching, the yield of 0402-9 was 1357.26 kg per mu, ranking first in the experiment, but the commercial potato rate was the lowest, only 88.24%, which needs further planting and observation.
