彩色马铃薯新品种垦彩薯2号的选育

A New Colorful Potato Variety——‘Kencaishu No.2’

垦彩薯2号是以2008-15为母本,以MD04-72为父本,通过有性杂交、系统选育而成的鲜食彩色马铃薯新品种。中晚熟,生育期103 d(天)左右;植株生长势强,株高50 cm左右,株型半直立,分枝中等,结薯集中;块茎长椭圆形,薯皮、薯肉均为玫瑰红色,芽眼中等,花青素含量1623.7 mg·kg^(-1),干物质含量15.40%,淀粉含量7.4%,粗蛋白含量1.52%,还原糖含量0.16%,VC含量118.0 mg·kg^(-1)(FW);单株结薯数3~5个,平均单薯质量153.2 g,大中薯(>75 g)率76.31%,每667 m^(2)产量1500 kg左右;抗马铃薯X病毒(PVX)、马铃薯Y病毒(PVY)和晚疫病,适于黑龙江省春季种植。

‘Kencaishu No.2’is a new colorful potato variety of fresh food type developed by crossing‘2008-15’as female parent and‘MD04-72’as male parent through sexual hybridization and systematic selection.It is of mid-late maturity.Its growth period is about 103 days.The plant has strong growth potential and is about 50 cm in height.The plant is of semi-erect type.The branches are in medium quantity,and tubers are concentrated.The tuber is of oval shape with rose red peel and rose red pulp.Its bud eye is of medium depth.The contents of anthocyanin is 1623.7 mg·kg^(-1).The contents of dry matter,starch,crude protein,reducing sugar and VC are 15.40%,7.4%,1.52%,0.16%and 118.0 mg·kg^(-1),respectively.Each single plant can bear 3-5 potatoes.The average single potato weight is 153.2 g.The medium and large potato rate(>75 g)is 76.31%.Its yield is about 22.5 t·hm^(2).It is resistant to PVX,PVY,and late blight.It is suitable for spring planting in Heilongjiang Province.