‘Godangok 2’, a yellow sweet corn hybrid obtained by crossing inbred KSE14 (female) and KSE23 (male) varieties harboring the sugary enhancer (se) gene, was developed by the maize breeding team at the National Institute of Crop Science (NICS), Rural Development Administration, Korea, in 2020. Days to silking of ‘Godangok 2’ (65 days) was 3 days later than ‘Danok 3’ (check hybrid, 62 days). The ear length of ‘Godangok 2’ (18.9 cm) was similar to that of ‘Danok 3’, but it exhibited a higher kernel filling rate (97%). In addition, the lodging tolerance of ‘Godangok2’ was greater than that of ‘Danok3’. The number of ears per 10a in Godangok2 (6,177) was 4% higher than that in ‘Danok 3’, whereas ear weights (1,075 kg) were 4% lower. ‘Godangok 2’ had a high sugar content of 23.4° Brix, a thin pericarp thickness of 21.4 μm, and a light 100-kernel weight of 25.4 g compared to that of the check hybrid. ‘Godangok 2’ showed the highest seed yield of 270 kg/10a at a 4 (female):1 (male) planting ratio. Because ‘Godangok 2’ carries the recessive se gene, its unique qualities may be compromised by cross-pollination with other corn varieties (e.g., sh2, bt, wx types). Therefore, to maintain sweet corn quality, corn should be grown and harvested separately in time and space (Registration No. 10059).

‘Danmi’, a sugary rice (Oryza sativa L.), was developed by the Department of Functional Crops, NICS, RDA in 2008. This variety was derived from a cross between ‘Sugary’ a genetic stock of germplasm as a source of sugary endosperm and ‘Seomjinbyeo’ in summer of 1994. The pedigree of ‘Danmi’ is YR16541-14-3-1-2-1-1-3-1-1 which was designated as ‘Milyang 227’ in 2005. Heading date of ‘Danmi’ is August 19, a medium-late maturing ecotype. The total sugar content of ‘Danmi’ was 21.7% with fructose (1.16%), glucose (7.87%), sucrose (9.69%), maltose (0.52%), and raffinose (2.13%), respectively. The appearance of grain is flat shape with 1,000 grain of brown rice is 16.1g. The yield potential of ‘Danmi’ in brown rice is 2.58MT/ha at ordinary fertilizer level of local adaptability test from 2006 to 2008. The sugary rice ‘Danmi’ would be adaptable to the plain paddy field of middle, honam and yeongnam province of Korea.