黄瓜新品种龙绿2号的选育

A New Cucumber F_(1) Hybrid—‘Longlyu No.2’

龙绿2号是以自交系332-5为母本,以自交系1061为父本配制而成的早熟华北型黄瓜一代杂种。植株生长势中等,主蔓结瓜为主,第1雌花着生于主蔓第4节左右,雌花节率高,单性结实能力强。瓜条棒状,瓜长32~35 cm,瓜皮深绿色,白刺较密,果肉浅绿色,商品瓜率高。高抗霜霉病、白粉病,抗枯萎病,VC含量129.0 mg·kg^(-1),每667 m^(2)前期产量1800 kg左右,总产量5000 kg左右,适宜东北地区及内蒙古保护地、露地种植。

‘Longlyu No.2’is a new North China-type cucumber F_(1) hybrid developed by crossing inbred line‘332-5’as female parent and inbred line‘1061’as male parent.It is of early maturity.The plant is of medium growth vigor.Its fruits are mainly setting on the main vine.The first female flower sets on around the 4th section of the main vine.The female flower producing rate is high.Its fruit is of rodlike shape,about 33-35 cm in length.The peel is dark green in color and covered by denser white spines.Its flesh is light green in color.The commercial fruit rate is high.It is highly resistant to powdery mildew,downy mildew and resistant to Fusarium wilt.Its VC content is 129.0 mg·kg^(-1).It can yield about 27 t·hm^(-2) in earlier stage,and about 75 t·hm^(-2) in total output.It is suitable for cultivation in open and protected fields in Northeast China and Inner Mogolia region.