关键词: 有棱丝瓜, 桂冠5 号, 一代杂种

Abstract: ‘Guiguan No.5’is a F1 hybrid of Luffa angustifolia developed by crossing inbred line‘B05-
13-2’as female parent and inbred line‘A10-12-3-7’as male parent．The plant has strong growth vigor and
strong branching ability．Both its main and lateral vines can bear melon．It is of early maturity．The first
female flower sets on the 12-13th node in spring，but on 16-18th node in autumn．It takes 65-68 days from
sowing to first harvest in spring and 45-47 days in autumn．The commercial melon is of short stick shape．Its
rind is green with spots on the surface．The melon is 35-38 cm in length，5.0-5.2 cm in diameter．The single
fruit weight is 310-350 g．Its flesh is white in color and tastes tender and sweet．The yield is 52.5-58.5 t · hm^-2．
Its resistances to downy mildew，powdery mildew and bacterial angular spot in fields are stronger than that of
the contrast‘Guilinbalingua’ ．It is suitable for planting in spring，summer and autumn in Southern China．

Key words: Luffa acutangula, ‘Guiguan No.5’, F₁ hybrid