지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.48 No.2
- 발행연도
- 2007.4
- 수록면
- 97 - 101 (5page)
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초록· 키워드
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Management of electrical conductivity (EC) is very important for crop growth in hydroponics. To determine the effect of EC on growth and yield of pak-choi (Brassica campestris ssp. chinensis) with growth stage, fresh and dry weights, number of leaves, yield, crop growth rate, and yield per area were evaluated in deep flow technique and nutrient film technique systems under different EC conditions. The growth stages were divided into two stages: stage 1, from seedling emergence to transplanting with 3 or 4 true leaves; stage 2, from transplanting to harvest at fresh weight ≥ 60g. The EC conditions were 0.5, 1.0, 1.5, 2.0, and 2.5 dSㆍm?¹ for growth stage 1 and 1.0, 1.5, 2.0, and 2.5 dSㆍm?¹ for growth stage 2. In growth stage 1, shoot fresh weight was highest at 1.5 dSㆍm-1, while shoot dry weight was highest at 2.0 dSㆍm?¹. Both shoot fresh and dry weights were lowest at 1.0 dSㆍm?¹. In growth stage 2, leaf length, leaf width and number of leaves were highest at 2.0 dSㆍm?¹. Both shoot fresh and dry weights were highest at 2.5 dSㆍm?¹. Yield per area was highest at 2.0 and 2.5 dSㆍm?¹. Except for 1.0 dSㆍm?¹, no significant differences in shoot fresh, dry weights and yield per area were observed. Cumulative water absorption per plant was highest at 2.0 dSㆍm?¹. Adequate ECs for growth and yield of pak-choi were 1.5-2.0 dSㆍm?¹ from seedling emergence to transplanting and 2.0 dSㆍm?¹ from transplanting to harvest. Optimum conditions of EC could improve the growth and yield of hydroponically-grown pak-choi.
목차
Abstract
Introduction
Materials and Methods
Results and Discussion
Literature Cited
참고문헌 (11)
참고문헌 신청
1. [학술지(정기간행물)] - Abou-Hadid, A.F / 1996 / Electrical conductivity effect on growth and mineral composition of lettuce plants in hydroponic system 434 : 59 ~ 66
2. [학술지(정기간행물)] - Chi / 1991185?H{192 / Effect of concentration of nutrient solution on vegetative growth and fruit yield of hydroponically grown tomato plants shi (hara)
3. [학술지(정기간행물)] - Cho, Y.Y / 2007 / Estimation of leaf number and leaf area of hydroponic pak-choi plants (Brassica campestris ssp. chinensis) using growing degree-days 50 : 8 ~ 11
4. [학술지(정기간행물)] - Cho, Y.Y / 1999 / Effects of nutrient control on the growth of lettuce in nutrient film technique 483 : 161 ~ 165
5. [학술지(정기간행물)] - De Kreij, C / 1995 / Latest insights into water and nutrient control in soilless cultivation 408 : 47 ~ 61
2. [학술지(정기간행물)] - Chi / 1991185?H{192 / Effect of concentration of nutrient solution on vegetative growth and fruit yield of hydroponically grown tomato plants shi (hara)
3. [학술지(정기간행물)] - Cho, Y.Y / 2007 / Estimation of leaf number and leaf area of hydroponic pak-choi plants (Brassica campestris ssp. chinensis) using growing degree-days 50 : 8 ~ 11
4. [학술지(정기간행물)] - Cho, Y.Y / 1999 / Effects of nutrient control on the growth of lettuce in nutrient film technique 483 : 161 ~ 165
5. [학술지(정기간행물)] - De Kreij, C / 1995 / Latest insights into water and nutrient control in soilless cultivation 408 : 47 ~ 61
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