厚皮甜瓜新品种银冠2号的选育

A New Muskmelon F1 Hybird —‘Yinguan No.2’

银冠2号是以自交系M5为母本,以自交系F4为父本选育而成的中熟厚皮甜瓜一代杂种。植株生长强健,坐果整齐,成熟一致。早春塑料大棚栽培全生育期约100 d(天),每667 m^2产量3 600 kg,单果质量2.6 kg;露地栽培全生育期约95 d(天),每667 m^2产量3 850 kg,单果质量3.5 kg。果实发育期45~50 d(天),果实短椭圆形,果皮白色覆有细密网纹,果肉绿色,肉厚6.0 cm,中心可溶性固形物含量16.3%,肉质细腻,清香爽口。田间对甜瓜白粉病、霜霉病和蔓枯病的抗性与对照银帝相当。成熟时不脱蒂,果皮坚韧,耐贮运性好。适宜甘肃及陕西、内蒙古、新疆等省区露地和保护地种植。

‘Yinguan No.2’is a mid-matured muskmelon F1 hybrid developed by crossing inbred line‘M5’as female parent and inbred line‘F4’as male parent.The plant has strong growth vigor.It bears fruits in order and matures in full accordance.Its growth period in plastic greenhouse is about 100 days in early spring.It can yield about 54.00 t·hm^-2.Its single fruit weight is 2.6 kg.In open field cultivation,its growth period is about 95 days.It can yield about 57.75 t·hm^-2.The single fruit weight is 3.5 kg.Fruit development period is 45-50 days.Its fruit is of short oval shape with green flesh.The fruit peel is white with fine overlapping curve.The fruit flesh is 6.0 cm in thickness.The central soluble solid content is 16.3%.In fields,its resistances to powdery mildew,downy mildew and gummy stem blight are equal to that of the contrast‘Yindi’.The pedicel does not fall off when ripening.Its peel is firm and tenacious and tolerant to storage and transportation.It is suitable for planting in open and protected fields in Gansu,Shaanxi Provinces,Inner Mongolia and Xinjiang Autonomous Regions.