학술논문
지중가온 재배에 의한 녹차의 조기생산 체계확립과 적합 품종선발
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- 영문명
- Establishment of early - production system for Camellia sinensis by selection of optimum cultivar and soil warming cultivation
- 발행기관
- 한국차학회
- 저자명
- 김현중(Hyun-jung Kim) 노일섭(Ill-Sup Nou)
- 간행물 정보
- 『한국차학회지』제6권 제1호, 63~73쪽, 전체 11쪽
- 주제분류
- 농수해양 > 기타농수해양
- 파일형태
- 발행일자
- 2000.03.30
4,120원
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국문 초록
영문 초록
This study was carried out to be established the protected cultivation system for early production and for selection the suitable cultivar at soil warming cultivation, investigating the changes of soil temperature in each soil depths. growth characteristics and major chemical components of the green tea (Camellia sinensis) cultivars which were introduced from the Japan. The mean soil temperature was kept over average 15˚C than unheated the bare ground by soil warming, and the soil temperature was in range of 15~28˚C from the middle to the last in January. The early production of green tea was possible at this range of the soil temperature by soil warming. As the results of the growth characteristics for selecting the suitable cultivar at soil warming cultivation, the plant growth was fairly vigorous in almost cultivars and especially cultivar 'Yabukita' was showed best growth, and 'Makinoharawase' was medium. Also, plant height and internode length were the highest in 'Yabukita'. The leaf shape index was the lowest in 'Oiwase'(1.86), and 'Saemidori' was the highest(3.15). The length of the young shoot in 'Fushun' was the lowest by 33.0cm, and was the highest in 'Yabukita' by 46.8cm. According to the results of the above, 'Yabukita' and 'Okumidori' were the most recommendable cutivars in soil warming cultivaion system. The contents of total nitragen in 'Yabukita' and 'Okumidori' were each the highest by 5.86%, and 'Makinoharawase' was the lowest by 5.15%. The content of tannin was 12.5~15.3% all over the cultivars. The content of caffeine was the highest in 'Oiwase' , and was the lowest in 'Makinoharawase'. The total contents of free amino acid were composed mainly of theanine, aspartic acid, serine, glutamic acid, and arginine, and these were occupied as much as 83~90%. The data about major chemical components in each cultivars will be used as a selection indicator of the quality of green tea.
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