Abstract: ‘Longlyu No.2’is a new North China-type cucumber F₁ 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．

Key words: cucumber, ‘Longlyu No.2’, F₁ hybrid

摘要： 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 m² 前期产量1 800
kg 左右，总产量5 000 kg 左右，适宜东北地区及内蒙古保护地、露地种植。

关键词: 黄瓜, 龙绿2 号, 一代杂种