Table 2. Key Chinese inbreds used in a multiple-hybrid population (MHP)and their contribution to hybrid and inbred breeding programs.
| Inbreds | Characteristics | Hybrids released | Inbreds developed | Hybrids released with derivatives |
|---|---|---|---|---|
| LX9801 | Compact plant type, high combining ability, strong resistance to NCLB, SCLB, MDMV and head smut | Ludan981, Ludan984 | LX03-2, Jing92 | Jingke968, Ludan9066 |
| Chang7-2 | Compact plant type, small tassel size, less branch number, abundant pollen and high GCA | Anyu5, Zhengdan958, Jidan7, Jifeng96 | Xun926, Xun92-8, K17, HD568 | Xundan20, Zhongdan909 |
| Dan340 | Erect leaves above ear, flourishing roots, strong resistance to NCLB and head smut | Yedan13, Danyu15, Jidan159 and Jidan27 | Tie9010, Xi502, Dan232 | Xiyu3, Yedan20, Tiedan12, Dan605 |
| H21 | Broad leaf blade, long internode, small ASI, strong resistance to NCLB, head smut and stalk rot | Jindan33, Xinkang5 | LX9801, Ningchen07, M81 | Ningyu309, Zhongxing56, Ludan999 |
| HZ4 | High combining ability, strong disease resistance, high seed yield, compact plant type | Yandan14, Yedan2, Yedan4 | Chang7-2, Ji444, K12, 897, Ji854, Tianya4, Ji856, 196, Ji853 | Liaoyu22, Sidan104, Jidan180, Shandan911 |
| Nan21-3 | Flourishing roots, stiff stalk, small ASI, strong resistance to NCLB and dwarf mosaic disease | Nansandanjiao, Nanqidanjiao, Nanqisanjiao, Nanhuangdanjiao | 286-4, Bai286 | Wandan11, Ke’en18, Wandan14 |
| Qi205 | High combining ability, strong resistance, high seed yield and good adaptability | Chengdan17, Chengdan18, Zhongdan9409 | Qi3925, ISA01 | Ludan718, Kexiang11 |
| Qi319 | Compact-type plant, abundant pollen, strong resistance to lodging and southern corn rust | Ludan50, Ludan963 | LX3999, JN15, PC58 | Ludan6006, Jingke308, Tiantai33 |
| Si287 | Slender leaves, abundant pollen, high seed-setting rate, and high combining ability | Jidan27, Jidan46 | KM36 | Jinongda115, Jinongda578 |
| Tie7922 | Stiff stem, strong resistance to drought, lodging and waterlogging, high resistance to NCLB and SCLB, head smut and stalk rot | Tiedan8, Yayu2, Simi25 | TieC8605-2, Dan9046, Liao2345 | Tiedan10, Tiedan19, Danyu2, Danyu26, Liaodan24 |
| Ye478 | High combining ability, compact-type, short and stout stem, good comprehensive agronomic traits | Zhongdan8, Yedan12, Yedan13, Yedan19 | K22, Jing89, Yuqing858 | Shandan21, Shandan308, Jingyu16, Yuqing1 |
| Zheng22 | Stocky stem, superior root system, strong resistance to drought, NCLB and SCLB, MRDV and BYDV | Yuyu18 | Shen151, Zheng22you | Shenyu17, Shenyu20, Wuke1 |
| Zheng58 | High combining ability, compact plant type, strong resistance to NCLB, SCLB and lodging | Ludan9002 | M6, WK858 | Huanong18, Weike702 |
| Dan598 | Good stems elasticity and strong resistance to BLSB and head smut | Danyu26, Danyu39, Danke2151, Dongdan60 | M5972, Y14, 765 | Liangyu99, Huatian866, Danyu502 |
| Huang C | Compact plant type, high lysine content, strong resistance to NCLB and SCLB | Nongda108, Liyu10 | 168, T14-3B | Changyu1, Jindan66, Zhongyu335 |
| Jiao51 | High combining ability, good grain quality, stiff stem and lodging resistance | Jiaosandanjiao, Andan136, Yudan11, Yayu15 | ||
| 18-599 | High combining ability, high seed yield, good quality and good comprehensive agronomic traits | Shengyu9, Dong315, Chunxi11 | Zhongyu335, Yayu318 | YA0419 |
| Chuan 29 Female | High combining ability and heterosis, high ferric content | Chuandan29 |
NCLB: Northern corn leaf blight; SCLB: Southern corn leaf blight; MDMV: Maize dwarf mosaic virus; MRDV: Maize rough dwarf virus; BYDV: Barley yellow dwarf virus; BLSB: Banded leaf sheath blight; ASI: anthesis-silking interval.