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
- 발행연도
- 2014.12
- 수록면
- 563 - 570 (8page)
이용수
초록· 키워드
오류제보하기
The shortage or surplus of minerals directly affects overall physiological metabolism of plants; especially, it strongly influences carbohydrate metabolism as a primary response. We have studied mineral uptake, synthesis and partitioning of soluble carbohydrates, and the relationship between them in N, P or K-excessive tomato plants, and examined the interaction between soluble carbohydrates and mineral elements. Fourweeks-old tomato plants were grown in a hydroponic growth container adjusted with excessive N (20.0 mmol L<SUP>-1</SUP> Ca(NO₃)₂?4H₂O and 20.0 mmol L<SUP>-1 </SUP>KNO₃), P (2.0 mmol L-1 KH₂PO₄), and K (20.0 mmol L-1 KNO₃), respectively, for 30 days. Shoot growth rates were significantly influenced by excessive N or K, but not by excessive P. The concentrations of water soluble N (nitrate and ammonium), P and K were clearly different with each tissue of tomato plants as well as the mineral conditions. The NPK accumulation in all treatments was as follows; fully expanded leaves (48%) > stem (19%) = roots (16%) = petioles (15%) > emerging leaves (1). K-excessive condition extremely contributed to a remarkable increase in the ratio, which ranged from 2.79 to 10.34, and particularly potassium was dominantly accumulated in petioles, stem and roots. Fresh weight-based soluble sugar concentration was the greatest in NPK-sufficient condition (154.8 mg g<SUP>-1</SUP>) and followed by K-excessive (141.6), N-excessive (129.2) and P-excessive (127.7); whereas starch was the highest in K-excessive (167.0 mg g<SUP>-1</SUP>) and followed by P-excessive (146.1), NPK-sufficient (138.2) and N-excessive (109.7). Soluble sugar showed positive correlation with dry weight-based total N content (p<0.01) whereas was negatively correlated with soluble P (p<0.01) and dry weight-based total P (p<0.01). On the other hand, starch production was negatively influenced by total N (p<0.001), but, it showed positive relation with total K concentration (p<0.05). This study shows that uptake pattern of NPK and production and partitioning of soluble carbohydrate were substantially different from each mineral, and the relationship between water soluble- and dry weight-based-mineral was positive.
목차
Introduction
Materials and Method
Results and Discussion
Conclusions
References
참고문헌 (25)
참고문헌 신청
1. [학술지(정기간행물)] - Becker, M. / 2005 / Iron toxicity in rice – conditions and management concepts / J. Plant Nutr. Soil Sci 168 : 558 ~ 573
2. [학술지(정기간행물)] - Bendixen, R. / 1997 / Physiological and biochemical processes related to ammonium toxicity in higher plants / J. Plant Nutr. Soil Sci 160 : 239 ~ 251
3. [학술지(정기간행물)] - Cakmak, I. / 1994 / Activity of ascorbate-dependent H2O2-scavenging enzymes and leaf chlorosis are enhanced in magnesium- and potassium-deficient leaves, but not in phosphorus-deficient leaves / J. of Exp. Bot 45 : 1259 ~ 1266
4. [학술지(정기간행물)] - Cakmak, I. / 1994 / Partitioning of shoot and root dry matter and carbohydrates in bean plants suffering from phosphorus, potassium and magnesium deficiency / J. of Exp. Bot 45 : 1245 ~ 1250
5. [학술지(정기간행물)] - Cechin, I. / 2004 / Effect of nitrogen supply on growth and photosynthesis of sunflower plants grown in the green house / Plant Sci 166 : 1379 ~ 1385
2. [학술지(정기간행물)] - Bendixen, R. / 1997 / Physiological and biochemical processes related to ammonium toxicity in higher plants / J. Plant Nutr. Soil Sci 160 : 239 ~ 251
3. [학술지(정기간행물)] - Cakmak, I. / 1994 / Activity of ascorbate-dependent H2O2-scavenging enzymes and leaf chlorosis are enhanced in magnesium- and potassium-deficient leaves, but not in phosphorus-deficient leaves / J. of Exp. Bot 45 : 1259 ~ 1266
4. [학술지(정기간행물)] - Cakmak, I. / 1994 / Partitioning of shoot and root dry matter and carbohydrates in bean plants suffering from phosphorus, potassium and magnesium deficiency / J. of Exp. Bot 45 : 1245 ~ 1250
5. [학술지(정기간행물)] - Cechin, I. / 2004 / Effect of nitrogen supply on growth and photosynthesis of sunflower plants grown in the green house / Plant Sci 166 : 1379 ~ 1385
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UCI(KEPA) : I410-ECN-0101-2016-521-000952315