关键词: 糯玉米, 晋糯20号, 一代杂种

Abstract: ‘Jinnuo No.20’is a new black waxy corn F₁ hybrid developed by crossing inbred line‘Tian
BN’as female parent and inbred line‘chN1’as male parent．Its ear is of cylindrical shape．The maize
cob and kernels are purple black in color．In northern production areas，its growth period is about 91 days．
The plant height is 279 cm，ear position height is 127 cm．Its ear is 20.5 cm in length，4.8 cm in thickness．
There are 16 head progeny rows．The amylopectin holds 99.09% of the total starch content．The fresh ear yield
is about 14.1 t · hm^-2．It is medium resistant to leaf blight and gall smut．In the southern production areas，
its growth period is about 76 days．The plant height is 225 cm and ear position height is 86 cm．Its ear is
17.2 cm in length，4.9 cm in thickness．There are 14-16 head progeny rows．The amylopectin holds 98.30%
of the total starch content．The fresh ear yield is about 12.0 t · hm^-2．It is medium resistant to corn sheath
blight．It is suitable for planting in the northern regions of Jilin，Inner Mongolia，Hebei，Shanxi，etc.，and
in the southern regions of Zhejiang，Jiangxi，Fujian，Hainan，etc．

Key words: waxy corn, ‘Jinnuo No.20’, F₁ hybrid