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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.49 No.5
- 발행연도
- 2008.10
- 수록면
- 298 - 304 (7page)
이용수
초록· 키워드
오류제보하기
The study was performed to investigate the possibility of seed potato (Solanum tuberosum L. cv Superior) production using plug derived from hydroponically produced minitubers of about 0.7 g. The minitubers were planted on 128-cells plug trays filled with growing media such as cocopeat, cocopeat/perlite (9:1 v/v), peatmoss, peatmoss/perlite (9:1), peatmoss/cocopeat (5:5) and three commercial potting media. Potato plug grown in the commercial growing media showed better growth in shoot and root compared to the peatmoss- and cocopeat-based growing media because of the optimum range of pH (4.8-5.8) and high levels of electrical conductivity (0.2-0.8 dS mㆍ?¹). The plugs were transplanted into the field under rain-sheltered screenhouse conditions. Transplanting of the plugs were compared with direct planting of minitubers and conventional cut seed tubers of about 30 g. Dry weight accumulation of shoots reached a maximum 70 days after planting (DAP) for cut tubers while those of plug and minitubers took 80 to 90 DAP. Tuber dry weight accumulation increased to 45-50 g per plant for cut tubers, 40-45 g for plug, and 35-40 g for minitubers when harvested 90 and 100 DAP. Specific gravity of tubers harvested showed significant increases between 80 and 90 DAP, particularly in the minitubers and plug. However, there were no significant differences among the seed tuber types although there were decreases in the cut tubers in 2004. Total number of seed tubers at harvest was not different between the plug and minituber plants. Tuber yield of plug (1.6-2.2 ㎏ per 10 plants) was intermediate of the cut tubers (2.0-2.7 ㎏) and minituber plants (1.3-2.0 ㎏g).
목차
Abstract
Introduction
Materials and Methods
Results and Discussion
Acknowledgement
Literature Cited
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