“Chamgreen” was a domestically developed rye (Secale cereal L.) cultivar in South Korea, known for its quick heading, cold resistance, and abundant yield of forage. The heading date of cv. 'Chamgreen' averaged April 17th, which was 4 days earlier than the standard cv. 'Gogu'. In the early harvesting stage, the plant height reached an average of 119 cm, 7 cm taller than the standard cv. 'Gogu', and the number of spikes per ㎡ was 865, slightly less than cv. 'Gogu's 897. Resistance to cold and powdery mildow remained consistent across four regions nationwide over three years, with an average rating of 0, matching cv. 'Gogu'. Lodging resistance was also rated at 2, equivalent to cv. 'Gogu'. The dry matter yield of cv. 'Chamgreen' was 9.1 tons per hectare, 15% higher than cv. 'Gogu's 7.9 tons. Although the protein content in cv. 'Chamgreen' was 13.5%, 1.6% lower than cv. 'Gogu', the total digestible nutrients (TDN) content was 5.81 tons per hectare, 20% higher than cv. 'Gogu'. Due to its strong cold resistance, cv. 'Chamgreen' allows for winter cultivation through double cropping and rotation systems in various regions across the country.

Background : Panax ginseng C. A. Meyer is a slow-growing perennial herb that is cultivated in shading condition. Climate change occur around the world that make a lot of problem such as damage of high temperature, drought, salinity and disease. The problems lower the ginseng productivity that cause income reduction of farmers. To achieve stable ginseng production, development of elite varieities resistant to abiotic and biotic stresses is consistently required. It is very time consuming process in order to develop new ginseng varieties because ginseng flowers after 3 years of growth. So, early selection system of elite line must be established. This study was conducted to develope efficient ginseng breeding techniques for early identification of heat or salinity resistance. Methods and Results : Ginseng petioles was soaked in mixed salts solution consisting of KNO3, KH2PO4, MgSO4․H2O in order to test resistant or susceptible salinity. The degree of resistance was quantified according to damage size. Also, ginseng lines transplanted in pot were treated 46℃ for 1 hour and then chlorophyll fluorescence reaction were measured in order to test resistant or susceptible high-temperature. The measured values such as Fm/Fo, Fv/Fm, Rfd were differentiated between resistant and susceptible line. Conclusion : Several lines showed that they are resistance to high temperature or salinity. The selected lines will be utilized for parents to develop new varieties.

‘Nampungchal’ is a Sorghum bicolor L. developed and registered by Department of Sothern area crop science, NICS, RDA in 2012. This variety was developed through pure line breeding method from ‘Namhae’ landrace. ‘Nampungchal’ is a medium maturing variety having 68 days from planting to heading of sorghum in Miryang, Korea. The plant is pigmented (purple), the glumes and grains are red-brown with waxy endosperm. The panicle has less compact shape and the length is 23 cm. The grain yield of ‘Nampungchal’ is about 2.28MT/ha that is higher 9%, when compared with standard variety ‘Hwanggeumchal’. Culm length and width are about 142 cm and 20.2 cm, respectively. It could be reduce the lodging problem by thicker stems and also adapted to mechanized cultivation. ‘Nampungchal’ does produce high quantities of polyphenol and tannin contents with DPPH radical scavenging activity in pigmented testa. The object of this breeding program is improvement for mechanized production with high yield potential, lodging resistant, and responsive to favorable environmental conditions.