马铃薯新品种——‘昆薯7号’的选育

Selection and Breeding of New Potato Variety 'Kunshu 7'

‘昆薯7号’是昆明市农业科学研究院利用生产上种植的品种‘会-2’作母本,国际马铃薯中心(CIP)引进的材料‘CIP004(TPS-67)’作父本配制杂交组合,通过人工有性杂交选育成的中晚熟马铃薯新品种,2023年通过国家非主要农作物品种登记,登记编号:GPD马铃薯(2023)530040。该品种生育期105 d,适宜作鲜食型品种。块茎卵圆形,芽眼浅、少,薯皮光滑、黄色,薯肉黄色。干物质含量13.60%、淀粉含量10.60%、蛋白质含量2.21%、维生素C含量12.40 mg/100 g、还原糖含量(以葡萄糖计)0.59%。耐贮运,蒸煮品质优,适口性好。抗马铃薯Y病毒(Potato virus Y,PVY)病,中抗青枯病,感晚疫病。2017—2019年区域试验中,‘昆薯7号’的平均产量为2 517 kg/667m2,较对照‘丽薯6号’平均产量2 323 kg/667m2增产8.35%。该品种适宜在云南省春、秋、冬作区种植。

'Kunshu 7' is a new mid-late maturing potato variety developed by the Kunming Academy of Agricultural Sciences(KAAS) through artificial sexual hybridization,using the commercial variety 'Hui-2' as female and the material'CIP004(TPS-67)' introduced from the International Potato Center(CIP) as male to make cross.It was registered as a national non-main crop variety in 2023,registration number:GPD Potato(2023) 530040.The variety has a growth duration of about 105 days,and it is suitable for use as a table variety.The tubers are oval-shaped,with a few shallow eyes,smooth and yellow skin,and yellow flesh,which contains 13.60% of dry matter,10.60% of starch,2.21% of protein,12.40 mg/100 g of Vitamin C,and 0.59% of reducing sugar(calculated in glucose).This variety is resistant to storage and transportation,with excellent cooking quality and good palatability.It is resistant to potato virus Y,moderate resistant to bacterial wilt,but susceptible to late blight.In the 2017 to 2019 regional trial,the average yield of 'Kunshu 7'was 2 517 kg/667m2,which was increased by 8.35% compared with the average yield of the control 'Lishu 6' with2 323 kg/667m2.This variety is suitable for planting in spring,fall and winter cropping areas in Yunnan Province.