南瓜新品种优贝2号的选育

A New Pumpkin F1 Hybrid—‘Youbei No.2’

优贝2号是以自交系N-20为母本,以N-9为父本配制而成的印度南瓜一代杂种。早熟,第1雌花节位第14~15节,雌花率高,坐果能力强,可连续坐果5~6个;果实扁圆形,纵径6.6~7.3 cm,横径11.2~11.6 cm,果皮深绿色,果肉橙黄色,肉质粉糯、香甜,平均单果质量513 g;对白粉病、绵腐病、疫病的抗性强于对照贝栗4号,每667 m^(2)产量2 400 kg左右,适宜湖南、湖北、四川、江西等地种植。

‘Youbei No.2’is a new pumpkin F1 hybrid developed by crossing inbred line‘N-20’as female parent and inbred line‘N-9’as male parent.It is of early maturity.The first female flower node is located in the 14-15th nodes,with a high female flower rate and high fruit-setting ratio.It has fruit-setting ability of 5-6 fruits per plant.The fruit is flat and round,with 6.6-7.3 cm in longitudinal diameter,and 11.2-11.6 cm in transverse diameter.The skin is dark green,and the flesh is orange yellow.The flesh is glutinous and sweet.The average single fruit weight is 513 g.Its resistance to powdery mildew,phytophthora rot,and epidemic disease is stronger than that of the contrast‘Beili No.4’.It can yield about 36 t·hm^(-2).It is suitable for planting in Hunan,Hubei,Sichuan,Jiangxi Province.