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소포자 배양 유래 계통을 활용한 브로콜리 신품종 조기 육성
곽정호(Jung-Ho Kwak),박미영(Miyoung Park),이준구(Jun-Gu Lee),박수형(Suhyung Park),김대영(Dae-young Kim),정승룡(Seung-Ryong Cheong),임용표(Yong Pyo Lim),윤무경(Moo Kyoung Yoon) 충남대학교 농업과학연구소 2012 농업과학연구 Vol.39 No.4
Since the year 2000, the production and consumption of broccoli have rapidly increased in Korea. And, the average production area and amount were about 1,700 ha and 29,000 ton for the past 5 years. Even with the increase of these cultivation and consumption, more than 95% of the broccoli seeds are currently imported from foreign countries such as Japan and Netherlands. Therefore, development of domestic broccoli varieties is needed to relieve Korean farmers’ production cost for broccoli. In this situation, National Institute of Horticultural and Herbal Science (NIHHS) of Korea has tried to develop F1 hybrid varieties from elite lines that were obtained by microspore cultivation method from 2008. As the results, about 850 lines of broccoli were obtained and self-pollinated. Then their ploidy levels of the genome were confirmed to select double haploid (D.H.) lines. And the D.H. lines’ horticultural traits were evaluated in open field. After the selection of 17 elite D.H. lines, they were cross-pollinated with a male sterile (MS) line to produce F1 hybrid seeds. After 2 to 3 years field trials of these F1 hybrid varieties at the area of Suwon, Gangneung, and Jeju respectively, two hybrid varieties such as ‘Wongyo8011’ and ‘Wongyo8012’ are selected for the application of variety protection. With these 4 years of research, we found that the microspore cultivation method is a powerful tool for the conventional breeding program, especially for the development of various inbred lines and even F1 hybrid varieties in short time.
국내 채소 종자산업 활성화를 위한 중국 광동성 및 운남성 채소 종자시장 현황 조사
곽정호(Jung-Ho Kwak),윤무경(Moo Kyoung Yoon),박수형(Suhyung Park),김대영(Dae-young Kim),정승룡(Seung-Ryong Cheong),신현호(Hyun-Ho Shin),이상길(Sang-Kil Lee),임용표(Yong Pyo Lim) 충남대학교 농업과학연구소 2012 농업과학연구 Vol.39 No.4
Vegetable seeds are one of the most important key factors to determine the way of vegetable’s production, distribution, processing and storage. Unfortunately, because of international exchange crisis in 1997, the most of main Korean seed companies were merged into foreign capitals. Currently, many domestic seed companies are incapable of their own survey and development of vegetable seed markets in foreign countries. To provide valuable seed market information for these companies, China, especially Yunnan and Guangdong provinces in China, was selected. Since China is one of the major vegetable seed importers. Also, Yunnan and Guangdong provinces are the most promising targets to export Korean vegetable seeds. The current status of vegetable production in China was analyzed with consideration of Yunnan and Guangdong provinces. The contents of survey and analysis are covering major vegetable crops’ cultivation area, farm number, cultivation type, production amount, market price, farm income, packaging method, distribution type and amount of seed consumption. And particularly, major horticultural characteristics of leading varieties were presented to assist the development of exportable varieties of domestic seed companies. We assume the results of this study would be practically usable for the development of exportable varieties.