中早熟鲜食马铃薯新品种‘疆薯2号’的选育

Selection and Breeding of a Mid-early Maturing Table Potato Variety'Jiangshu 2'

‘疆薯2号’是新疆农业科学院综合试验场以‘舒克龙纳(Шyкpoнa)’为母本,‘拉托纳(Латона.)’为父本,通过品种间杂交选育而成。2022年完成非主要农作物品种登记,登记名称为‘疆薯2号’,登记编号为GPD马铃薯(2022)650095。‘疆薯2号’属于鲜食、炸片用中早熟新品种,生育期78 d,株型直立,株高70 cm左右。块茎圆形,薯皮红色、薯肉黄色,薯皮光滑,芽眼浅。结薯集中,单株结薯数3个,平均单薯重237 g,块茎平均商品薯率83.70%。干物质含量21.70%,淀粉含量15.60%,粗蛋白含量2.03%,维生素C含量12.10 mg/100 g,还原糖含量0.43%。食味品质优。2017~2018年多点生产试验结果表明,‘疆薯2号’2年平均产量2528 kg/667m2,对照‘克新1号’产量2012 kg/667m2,增产25.65%。‘疆薯2号’抗马铃薯X病毒(Potato virus X,PVX)、中抗马铃薯Y病毒(Potato virus Y,PVY),易感晚疫病。该品种适宜在新疆维吾尔自治区各生态区种植及高海拔地区春季播种。

The new potato variety'Jiangshu 2'was developed from a cross between'Шyкpoнa'(female)and'Латона.'(male)through sexual hybridization and selection by the Experimental Farm,Xinjiang Academy of Agricultural Sciences.In 2022,the registration of non-major crop varieties was completed,with the name of'Jiangshu 2'and the registration number of GPD Potato(2022)650095.'Jiangshu 2'is a new medium-early maturing variety for fresh consumption and chip processing.Its growth duration is 78 days.The plant type is upright and the plant height is about 70 cm.It has round tuber with red skin,yellow flesh,smooth skin,shallow eyes and short stolons.For this variety,the number of tuber per plant is 3 with a mean tuber weight of 237 g,and the marketable tuber percentage is 83.70%.It has 21.70%dry matter,15.60%starch,2.03%crude protein,12.10 mg/100 g vitamin C and 0.43%reducing sugar.Taste quality is good.Production trials over several locations from 2017 to 2018 showed that the yield of'Jiangshu 2'was 2528 kg/667m2,increased by 25.65%when compared with that(2012 kg/667m2)of the control'Kexin 1'.'Jiangshu 2'is resistant to potato virus X(PVX),moderately resistant to potato virus Y(PVY),but susceptible to late blight.This variety is suitable for spring planting in all ecological areas of Xinjiang Uygur Autonomous Region and the area with high altitude.