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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.50 No.5
- 발행연도
- 2009.10
- 수록면
- 377 - 383 (7page)
이용수
초록· 키워드
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Nitrogen forms (ammonium versus nitrate) have important physiological and morphological consequences for plants. In this study, the effects of N forms (ammonium versus nitrate) as sole nitrogen source on water consumption of tomato plants in both nutrient solution and soil culture were investigated. Tomato plants grown in ammonium or in nitrate showed different pattern of transpiration and water consumptions. Compared to ammonium, nitrate led to higher water consumption. In nutrient solution, when plants were supplied with nitrate at concentrations of 1, 2, 4 and 8 mM N-NO₃, water consumption increased along with increasing nitrate concentrations, while ammonium-fed plants (buffered with CaCO₃) resulted in a significant reduction of water consumption, independent of ammonium concentration. Similarly in soil culture stabilized ammonium nutrition, by application of ammonium with 3,4-dimethylpirazole phosphate (DMPP) as a standard nitrification inhibitor, led to a significant reduction of water consumption compared to nitrate grown plants. In addition, nitrate reductase activity was also inhibited under ammonium nutrition, and the activity of this enzyme could be used as a good indicator of water consumption of tomato plants. Other plant growth parameters such as root and shoot fresh weights under ammonium culture compared to nitrate were significantly lower in soil culture. Nitrogen concentrations and chlorophyll contents, however, were significantly higher in ammonium-compared to nitrate-grown plants.
목차
Abstract
Introduction
Material and Methods
Results
Discussion
Conclusion
Literature Cited
참고문헌 (29)
참고문헌 신청
1. [학술지(정기간행물)] - Abbasi, M.K / 2000 / Gaseous N emission during simultaneous nitrification-denitrification associated with mineral N fertilization to a grassland soil under field conditions / Soil Biol.Biochem 32 : 1251 ~ 1259
2. [학술지(정기간행물)] - Adler, P.R / 1996 / NH4+ decreases muskmelon root system hydraulic conductivity / J. Plant Nutr 19 : 1395 ~ 1403
3. [학술지(정기간행물)] - Blom-Zandstra, M / 2007 / The role of nitrate in the osmoregulation of lettuce (Lactuca sativa L.) grown at different light intensities / J. Exp. Bot 36 : 1043 ~ 1052
4. [학술지(정기간행물)] - Bowman, D.C / 1992 / Foliar absorption of urea, ammonium and nitrate by perennial ryegrass turf / J. Am. Soc. Hort. Sci 117 : 75 ~ 79
5. [학술지(정기간행물)] - Britto, D.T / 2002 / NH4 + toxicity in higher plants: a critical review / Plant Physiol 159 : 567 ~ 584
2. [학술지(정기간행물)] - Adler, P.R / 1996 / NH4+ decreases muskmelon root system hydraulic conductivity / J. Plant Nutr 19 : 1395 ~ 1403
3. [학술지(정기간행물)] - Blom-Zandstra, M / 2007 / The role of nitrate in the osmoregulation of lettuce (Lactuca sativa L.) grown at different light intensities / J. Exp. Bot 36 : 1043 ~ 1052
4. [학술지(정기간행물)] - Bowman, D.C / 1992 / Foliar absorption of urea, ammonium and nitrate by perennial ryegrass turf / J. Am. Soc. Hort. Sci 117 : 75 ~ 79
5. [학술지(정기간행물)] - Britto, D.T / 2002 / NH4 + toxicity in higher plants: a critical review / Plant Physiol 159 : 567 ~ 584
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