鲜食型马铃薯新品种‘陇薯25号’

A New Table Potato Variety 'Longshu 25'

摘要

‘陇薯25号’是以‘LK99’为母本，‘大同G-13-1’为父本通过有性杂交选育而成，2024年通过农业农村部非主要农作物品种登记，登记编号：GPD马铃薯（2024）620040。生育期98 d左右，属中晚熟鲜食品种。植株半直立，结薯集中，单株结薯数4.9个。块茎椭圆形，黄皮淡黄肉，芽眼浅，商品率81.30%以上。2019—2020年甘肃省马铃薯区域试验平均产量2 867 kg/667m²，较统一对照‘LK99’（2 104 kg/667m²）增产36.29%。块茎中干物质21.80%，粗淀粉15.22%，粗蛋白2.49%，维生素C 14.00 mg/100 g，还原糖0.06%。高抗晚疫病，耐旱，耐低温。适宜在北方和西北一作区甘肃省春季种植、南方二作区广东省和广西壮族自治区冬季早熟种植。

Abstract

The new potato variety 'Longshu 25' was developed from a cross between 'LK99' (female) and ‘Datong G-13-1’ (male) through sexual hybridization and selection, and approved as a non-staple crop variety by the Ministry of Agriculture and Rural Affairs in 2024, with the registration number GPD Potato (2024) 620040. The growth duration of 'Longshu 25' is about 98 days, making it a mid-late maturing variety, and can be cultivated as table potatoes. The plant type is semi-erect. Stolons are short, and tuber number per plant is 4.9. The tuber is oval, with yellow skin, light yellow flesh, shallow eyes, and a marketable tuber percentage exceeding 81.30%. The average yield of 'Longshu 25' in the two-year potato regional trials in Gansu Province was 2 867 kg/667m², 36.29% more than the yield of control variety 'LK99', which was 2 104 kg/667m² from 2019 to 2020. Tubers have a dry matter content of 21.80%, starch content of 15.22%, crude protein content of 2.49%, vitamin C content of 14.00 mg/100 g, and reducing sugar content of 0.06%. This variety shows high resistance to late blight, with strong drought and low-temperature tolerance. It is suitable for spring planting in Gansu Province, in the single-cropping region in northern and northwestern China and for early winter planting in Guangdong Province and Guangxi Zhuang Autonomous Region, in the double-cropping region in southern China.

关键词

马铃薯 / 陇薯25号 / 中晚熟 / 耐旱 / 晚疫病

Key words

potato / Longshu 25 / mid-late maturing / drought tolerance / late blight

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基金资助

甘肃省重点研发计划(21YF1NA365)

国家马铃薯产业技术体系项目(CARS-09-P06)

甘肃省东西部科技协作专项(24CXND001)

甘肃省农业科学院区域协同创新项目(2024GAAS02)

甘肃省科技计划项目乡村振兴专项(25CXNA037)

甘肃省农业科学院中青年基金项目(2020GAAS40)