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장석우(Suk Woo Jang),최승국(Seung Kook Choi),박수형(Suhyoung Park),최학순(Hak Sun Choi),양은영(Eung Young Yang),이종남(Jong Nam Lee),김대균(Dae Gyun Kim),노재관(Jae Kwan Noh),김은지(Eun Ji Kim),정완규(Wan Gyu Jeong),고순보(Sun Bo Ko) 한국육종학회 2018 한국육종학회지 Vol.50 No.3
A new red butterhead lettuce (Lactuca sativa L.) with transverse broad elliptic, red leaves, ‘Sun Red Butter’, with late bolting and high yield, was developed from a cross between ‘Jajusangchu’ (red leaf color and half crisp) and ‘Dukseomjeokchukmyeon’ (high yield). The crossing and selection for advanced lines was previously carried out using the pedigree method during the period 2001-2009. The advanced lines were evaluated for yield and adaptability at several locations in Korea (Gangwon-do, Gyeonggi-do, Chungcheongbuk-do, Jeollabuk-do, Gyeongsangnam-do, and Jeju-do) in 2011. The type of matured stage is early and medium butterhead lettuce. The shelf life of ‘Sun Red Butter’ was four weeks longer than that of ‘Germania’ at 4°C. The anthocyanin content of ‘Sun Red Butter’ was lower than that of ‘Germania’ at 11.2 mg/100 g. The BSL (latucin+8-deoxylactucin+lactucopicrin) content of ‘Sun Red Butter’ was higher than that of ‘Germania’ at 32.8 μg/g, DW. The marketable yield of ‘Sun Red Butter’ was higher than that of ‘Germania’ by 67% (at 621.4 g per plant), and ‘Sun Red Butter’ showed a particularly improved yield under high-temperature cultivation in the field. Furthermore, ‘Sun Red Butter’ had better taste characteristics and was crisper and sweeter than ‘Germania’. Therefore, we recommend that the new cultivar ‘Sun Red Butter’ would be suitable for cultivation in spring and fall. Furthermore, this new cultivar could be harvested in a single harvest, as in a head lettuce, and could therefore be managed more efficiently and economically by farmers.
고추 안정생산을 위한 논 재배시 적정 토양 시비방법평가
최장선 ( Chang Sun Choi ),조명철 ( Myeong Cheoul Cho ),채수영 ( Soo Young Chae ),최학순 ( Hak Soon Choi ),곽정호 ( Jung Ho Kwak ),이우문 ( Woo Moon Lee ),박동금 ( Dong Kum Park ),이상규 ( Sang Gyu Lee ),전희 ( Hee Chun ),양은영 ( 전북대학교 농업과학기술연구소 2014 농업생명과학연구 Vol.45 No.2
In Korea, pepper cultivation fields are mostly located at mountain slopes or sloping field. Recently, pepper cultivation area using paddy-field has been increased. It is necessary to determine alternate fertilization methods for pepper cultivation in paddy field because pepper growth and development are influenced by environmental condition such as drought or waterlogging. Experimental plots were operated at 3 levels of fast-releasing fertilizer and 2 levels of slow-releasing fertilizer in paddy field and field conditions. Plant height, stem diameter, fruit weight, fruit length, and fruit diameter in accordance with the types and amount of fertilizer did not show significant differences. In the fast-releasing fertilizer plot, the yield of pepper increased as 14.4∼32.4% in paddy field than in field cultivation. In double level of slow-releasing fertilizer plot, the yield of paddy field cultivation increased 24.4% compared to field cultivation. The amount of capsaicinoids, with the exception of double level plot in fast-releasing fertilizer treatment, showed higher levels in paddy cultivation. The ASTA value is higher in paddy-field plot than the field cultivation in the slow-release fertilizer treatment. Based on the results of this study, double levels of slow-releasing fertilizer was evaluated as suitable fertilization scheme for stable pepper production in paddy field.