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大豆의 世代短縮에 關한 硏究 Ⅰ. 種實의 登熟期間과 發芽力
Doo Chull Shin(申斗澈),Moon Kap Joo(朱門甲) 한국육종학회 1986 한국육종학회지 Vol.18 No.4
This study was conducted to confirm the germinability of unripened seeds for rapid generation advancement of soybean in field and greenhouse. Seed development and germinability were faster in greenhouse than in field, and in the early variety than in the late variety. The first germinabilities were found on the 20 days after flowering(DAF) in greenhouse materials, and on the 20 to 25 DAF in field materials. It was found that over 90 percentage of germination on 10 to 20 days before maturity of soybean in field and greenhouse, and this ripening stage was corresponded with the time when the fresh pod weight reached at the highest level. The germination ratio of the seeds dried with pod shell was the almost same level with that of the fresh seeds ripened for 10 to 15 days more. The germination ratios of the dried seeds which were harvested on 20 to 25 days before maturity in each cultivar were over 80 percentage.
주문갑,홍우진 한국국제농업개발학회 1994 韓國國際農業開發學會誌 Vol.6 No.3
브루나이는 열대지방인 보르네오섬에 있는 석유와 천연가스가 풍부한 회교군주국가로서, 국토면적은 5,765 평방킬로미터, 인구는 약 264,000명 (1991년), 1인당 국민총생산은 미화 $17,000가량이다. 석유가 개발되기 시작한후, 농업을 소홀히 하여서, 국민총생산에서 농업이 차지하는 비율은 2%에 지나지 않는다. 1970년대 초에는 4,500톤의 쌀을 생산하여 쌀 자급율이 30%이었다. 그러나 1992년에는 년간 벼 재배면적이 1,067헥타, 벼수량이 1.1톤/헥타, 벼생산량이 1,144, 1인당 쌀소비량은 80킬로그램으로서, 쌀자급율은 3.5%로 떨어져서, 매년 21,000톤의 쌀을 외국에서 수입하고 있다. 브루나이 정부는 2012년까지 쌀자급율을 38%까지 올리기 위하여 벼생산사업에 착수하였다. 1차 사업은 780헥타의 논을 새로 개발하고 760헥타의 논에 관배수시설을 하는 것이다. 2차 사업은 정부직영농장 300 헥타의 관배수시설을 개보수하는 것이다. 3차 사업은 2,300헥타의 수리안전답을 개발하여 기계화 벼생산을 하려는 것으로서, 1985-1987년에 한국의 농어촌진흥공사의 용역단이 타당성조사를 실시한바 있다. 수리안전답에서의 작부체계는 벼 2기작으로서, 예상수량은 1기작에 벼 3.2톤/헥타이다. Brunei has a developing market economy based on the exploitation of petroleum and natural gas reserved. Brunei is an lslamic sultanate, covering an area of 5.765㎢ and 264,000 population in 1991. The gross national product(GNP) per capita was US$17,000 in 1992. The agricultural sector accounts for about 2% of the GNP and employs less than 4% of the work force. The rate of self-sufficiency in rice production obtained about 30% in the early 1970s and then decreased 3.5% in 1995. Therefore, Brunei government should be imported rice grains about 21,000 M/T per year. The rice self-sufficiency rate in Brunei will be increase from 3.5% to 38.0% in 2020 with the Rice production projects(RPP). First step of RPP is to expand the lowland paddy area from 606㏊. to 1386㏊. and to construct irrigation and drainage facilities for 760㏊. of paddy land. Second step of RPP is to improve the irrigation and drainage facilities for 300㏊. of the Wasan farm including the construction of the Imang reservoir. Third step of RPP is to develop 2,300㏊. of rice field with irrigation and mechanization of rice production in order to reduce labor force. For the increasing rice self-sufficiency rite, government will be necessary continued efforts such as improvement of new high yieldingcultivars, development of pest and disease control methods, and development of practical cultivation technique.