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휴면기간이 짧고 숙기가 빠른 2기작 감자 신품종 ‘새봉’
최장규(Jang-Gyu Choi),박영은(Young-Eun Park),임주성(Ju-Sung Im),이영규(Young-Gyu Lee),장동칠(Dong-Chil Chang),진용익(Yong-Ik Jin),서진희(Jin-Hee Seo),박현진(Hyun-Jin Park),이규빈(Gyu-Bin Lee),조지홍(Ji-Hong Cho) 한국육종학회 2021 한국육종학회지 Vol.53 No.4
‘Saebong’ is a double cropping potato variety bred by the Highland Agriculture Research Institute, NICS, RDA, in 2010. Althoughthe major double-cropped potato cultivar of Korea, cv. Dejima, with a dormancy period of 50-60 days after harvest was introduced in 1978,it is susceptible to physiological disorders, such as abnormal tubers and cracking, and common scab. The ‘Chubaek’ variety matures veryearly and has a dormancy period similar to that of cv. Dejima, yet it is highly susceptible to potato virus Y and has a low dry matter content. ‘Saebong’ was obtained by crossing ‘Daegwan2-8’ with ‘DH9-231’ in 2002. Seedling and line selections were performed from 2003-2004,and yield trials were carried out from 2005-2006 in Gangneung and Pyeongchang. Regional yield trials were conducted in spring and autumnin Namhae, Jeju, and Gangneung from 2007-2008 and in Muan, Jeju, and Gangneung in 2009. This variety produces many white flowersand berries, narrow green leaflets and petioles, and round tubers with beige-colored skin and white-colored flesh. Its dormancy period, whenstored at 20℃, was 50-60 days after harvest in spring, similar to cv. Dejima and Chubaek. The average tuber yields in spring and autumnregional trials were 40.4 and 30.5 ton⋅ha-1, respectively. It is susceptible to common scab but highly resistant to potato leafroll virus andpotato virus Y. Its dry matter content was 21.56% and 20.60% in spring and autumn, respectively (similar to those of cv. Atlantic and cv. Goun). It produces brighter colored potatoes and can be used to process potato chips and table stock after autumn cultivation in the potatodouble cropping area of Korea (Registration No. 4873).
이규빈,최장규,박영은,정건호,권도희,조광룡,천충기,장동칠,진용익,Lee, Gyu-Bin,Choi, Jang-Gyu,Park, Young-Eun,Jung, Gun-Ho,Kwon, Do-Hee,Jo, Kwang-Ryong,Cheon, Chung-Gi,Chang, Dong Chil,Jin, Yong-Ik 한국농림기상학회 2022 한국농림기상학회지 Vol.24 No.3
Due to abnormal weather conditions caused by climate change, natural disasters and damages are gradually increasing around the world. Global climate change as accompanied by warming is projected to exert adverse impact on production of potato, which is known as cool season crop. Even though, role of potato as a food security crop is expected to increase in the future, the climate change impacts on potato and adaption strategies are not sufficiently established. Therefore, this study was conducted to analyze the damage pattern of potatoes due to high temperature treatment and to evaluate the response of cultivars. T he high temperature treatment (35~38℃) induced heat stress by sealing the plastic house in midsummer (July), and the quantity and quality characteristics of potatoes were compared with the control group. T otal yield, marketable yield (>80 g) and the number of tubers per plants decreased when heat treatment was performed, and statistical significance was evident. In the heat treatment, 'Jayoung' cultivar suffered a high heat damage with an 84% reduction in yield of >80 g compared to the control group. However, in Jopung cultivar, the decrease was relatively small at 26%. Tuber physiological disturbances (Secondary growth, Tuber cracking, Malformation) tended to increase in the heat stress. Under heat conditions, the tubers were elongated overall, which means that the marketability of potatoes was lowered. T he tuber firmness and dry matter content tended to decrease significantly in the heat-treated group. T herefore, the yield and quality of tubers were damaged when growing potatoes in heat conditions. T he cultivar with high heat adaptability was 'Jopung'. T his result can be used as basic data for potato growers and breeding of heat-resistant cultivars.
박영은(Young-Eun Park),조지홍(Ji-Hong Cho),장동칠(Dong-Chil Chang),최장규(Jang-Kyu Choi),박현진(Hyun-Jin Park),서진희(Jin-Hee Seo),이규빈(Gyu-Bin Lee),임주성(Ju-Sung Im) 한국육종학회 2021 한국육종학회지 Vol.53 No.4
In 2018, a new potato variety, ‘Arirang-2’, was released by the Highland Agriculture Research Institute in Pyeongchang, Korea. To create new varieties with better tuber formation at high temperature under long day, a cross was performed between high-temperaturetolerant ‘Eigenheimer’ and drought tolerant ‘Daegwan 1-116’ in 2011. The shoot (57.9 cm) of ‘Arirang-2’ was taller than ‘Superior’ and‘Sante’, and its tuber skin and flesh were red and light-yellow colored, respectively. Average number of tubers per plant of ‘Arirang-2’ was9.1 while ‘Superior’ and ‘Sante’ had 5.4 and 14.1 tubers, respectively. Average weight of tuber of ‘Arirang-2’ was 98.1 g, which was slightlyheavier than that of ‘Superior’ (90.0 g), and much heavier than that of ‘Sante’ (38.9 g). Total weight of tuber per plant of ‘Arirang-2’ was892 g, which was remarkably higher than that of ‘Superior’ (486 g) and ‘Sante’ (549 g). Total yield (TY) of ‘Arirang-2’ measured in Gangwon-Do,Korea was around 5,022 kg/10a while that of ‘Superior’ was 3,036 kg/10a. In Kazahstan, total yield of ‘Arirang-2’ was 4,657 kg/10a andthat of ‘Sante’ was 4,155 kg/10a. Marketable tuber yield (MTY) of ‘Arirang-2’ was 3,119 kg/10a in Gangwon-Do, Korea while that of ‘Superior’was only 2,147 kg/10a. In Kazahstan, MTY of ‘Arirang-2’ was 3,162 kg/10a, which was 60% higher than that of ‘Sante’ (1,974 kg/10a). ‘Arirang-2’ is resistant to early blight (Alternaria solani) and late blight (Phytophthora infestans) compared to ‘Superior’ and ‘Sante’, andit shows tolerance to drought or high temperature. ‘Arirang-2’ was approved as a new potato cultivar by The Korea Seed and Varieties Serviceon March 3, 2021 (Registration No. 8444).