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| A New Black Waxy Corn F1 Hybrid —‘Jinnuo No.20 ’ |
| FAN Rui1，CHEN Yongxin1*，DONG Lihong1，ZHAI Guangqian2，LI Wenhe1，RUAN Fulin1 |
1Institute of Maize，Shanxi Agricultural University，Xinzhou 034000，Shanxi，China；2Organic Dryland Research Institute of
Shanxi Agricultural University，Taiyuan 030031，Shanxi，China |
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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．
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Received: 30 July 2020
Published: 01 December 2020
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