Korean peanut yield by new varieties has marvelously increased since first variety with 1.09 MT/ha was developed in 1960. This means 77.58kg/ha yield increment every year from 1960 to 2012. A new peanut variety “Sinpalkwang”(Arachis hypogaea ssp. hypogaea L.) showed the highest grain yield, 5.40 MT/ha, of Korean varieties was developed at the Department of Functional Crop, NICS, in Milyang in 2012. This was developed from the cross between cultivar “Palkwang“ and crossing line from cultivar “Palkwang” and “PI156649”. “Sinpalkwang” which is Virginia plant type has 41cm of main stem length and 25 branch number per plant. 45 pod number per plant, 79% of shelling ratio and 92g of 100-grain weight in the regional yield trials(RYT) greatly contributed to increase the yield potential of this variety. Each pod has two grains with brown testa and ellipse shape. Seed quality showed 45.4% of crude oil and 29.2% of protein content. This variety also showed more resistant to web blotch and stem rot, compared with check variety, Daekwang.
In the regional yield trials “Sinpalkwang” outyielded check variety by 28% with 5.40 MT/ha for kernel.

• Suk-Bok Pae(Department of Functional Crop, National Institute of Crop Science, RDA) Corresponding Author
• Chung-Dong Hwang(Department of Functional Crop, National Institute of Crop Science, RDA)
• Sung-Up Kim(Department of Functional Crop, National Institute of Crop Science, RDA)
• Myung-Hee Lee(Department of Functional Crop, National Institute of Crop Science, RDA)
• Chang-Hwan Park(Department of Functional Crop, National Institute of Crop Science, RDA)
• Keum-Yong Park(Department of Functional Crop, National Institute of Crop Science, RDA)
• Choon-Ki Lee(Department of Functional Crop, National Institute of Crop Science, RDA)
• In-Youl Baek(Department of Functional Crop, National Institute of Crop Science, RDA)