is the second largest corn production country in the world followed by USA. However, the corn production technology in China is around 60% that of USA. A new seed company, "Gongjuliang Dr.Corn Seed Company" established in 2008 formed a new population for the ecological zone of North East China and Korea Peninsular using 250 popular hybrids market in China. The first random mating was made in North Shenyang, Lyaoliang Province in 2008. The second random mating was made Sanya, Hainan Province during the winter season. The third random mating was made in North Shenyang, Gongjuling in China and Gunwi in South Korea. The fourth random mating was made in Sanya during the winter season of 2009/2010. From this North East Population (NEP), we will breed new corn inbred lines for high combining ability, and tolerance to both biotic and abiotic stresses with non-GMO trait.

• Don-Ho Kang(International Agricultural Research Institute, Kyungpook National Univesity) Corresponding author
• Soon-Kwon Kim(International Agricultural Research Institute, Kyungpook National Univesity)
• Ka-Hee Moon(International Agricultural Research Institute, Kyungpook National Univesity)
• Kwon-Chul Lee(International Agricultural Research Institute, Kyungpook National Univesity)
• Myung-Hwak Huh(Gongjuliang Dr. Corn Seed Company, Gongjuliang, and Jilin Academy of Agricultural Sciences)