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- 주제어 : carbohydrate partitioning (검색결과 9 건)
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Jwakyung Sung,Suyeon Lee,Yejin Lee,Hongbae Yun,Sangkeun Ha,Yongsik Ok 한국토양비료학회 2013 한국토양비료학회지 Vol.46 No.6
A huge number of greenhouse soils in Korea have accumulated mineral elements which induce many nutritional and pathological problems. The present study was performed to the effects of the reduced fertilization on plant growth, and uptake and partitioning of minerals (N, P, K) and soluble carbohydrates using highly minerals-accumulated farmer’s greenhouse soil. On the basis of the recommended application for tomato crop, the application rates of N, P and K were 110(50%)-5.2(5%)-41.5(35%)kg ha<SUP>-1</SUP>, respectively, using Hoagland’s nutrient solution. Tomato growth rates during the whole experiment were not significant between treatments, but it was found that a decrease in daily growth represented after 60 days of treatment (DAT). The reduced application led to a drastic decrease in the concentration of N, P and K in fruits, and, thus, this resulted in lower uptake after 40 DAT. The lower phloem export and utilization of soluble carbohydrates caused an accumulation of extra-carbohydrates in leaves, stems and fruits in the reduced application. The reduced fertilization induced the capture of N, P and K in leaves and of soluble carbohydrates in stems compared to the conventional application. In this study, we suggest that it is possible to delay the first fertigation time in minerals-accumulated soils without an adverse impact on crop growth, but it is necessary to regularly monitor mineral status in soil to ensure a balanced uptake, synthesis and partitioning of minerals and carbohydrates.
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Sung, Jwakyung,Lee, Suyeon,Lee, Yejin,Yun, Hongbae,Ha, Sangkeun,Ok, Yongsik Korean Society of Soil Science and Fertilizer 2013 한국토양비료학회지 Vol.46 No.6
A huge number of greenhouse soils in Korea have accumulated mineral elements which induce many nutritional and pathological problems. The present study was performed to the effects of the reduced fertilization on plant growth, and uptake and partitioning of minerals (N, P, K) and soluble carbohydrates using highly minerals-accumulated farmer's greenhouse soil. On the basis of the recommended application for tomato crop, the application rates of N, P and K were 110(50%)-5.2(5%)-41.5(35%)kg $ha^{-1}$, respectively, using Hoagland's nutrient solution. Tomato growth rates during the whole experiment were not significant between treatments, but it was found that a decrease in daily growth represented after 60 days of treatment (DAT). The reduced application led to a drastic decrease in the concentration of N, P and K in fruits, and, thus, this resulted in lower uptake after 40 DAT. The lower phloem export and utilization of soluble carbohydrates caused an accumulation of extra-carbohydrates in leaves, stems and fruits in the reduced application. The reduced fertilization induced the capture of N, P and K in leaves and of soluble carbohydrates in stems compared to the conventional application. In this study, we suggest that it is possible to delay the first fertigation time in minerals-accumulated soils without an adverse impact on crop growth, but it is necessary to regularly monitor mineral status in soil to ensure a balanced uptake, synthesis and partitioning of minerals and carbohydrates.
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Sung, Jwakyung,Lee, Suyeon,Lee, Yejin,Kang, Seongsoo,Ha, Sangkeun,Sonn, Yeonkyu Korean Society of Soil Science and Fertilizer 2014 한국토양비료학회지 Vol.47 No.6
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. Four-weeks-old tomato plants were grown in a hydroponic growth container adjusted with excessive N ($20.0mmol\;L^{-1}$ $Ca(NO_3)2{\cdot}4H_2O$ and $20.0mmol\;L^{-1}$ $KNO_3$), P ($2.0mmol\;L^{-1}$ $KH_2PO_4$), and K ($20.0mmol\;L^{-1}$ $KNO_3$), 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 ($154.8mg\;g^{-1}$) and followed by K-excessive (141.6), N-excessive (129.2) and P-excessive (127.7); whereas starch was the highest in K-excessive ($167.0mg\;g^{-1}$) 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.
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Jwakyung Sung,Suyeon Lee,Yejin Lee,Seongsoo Kang,Sangkeun Ha,Yeonkyu Sonn 한국토양비료학회 2014 한국토양비료학회지 Vol.47 No.6
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.
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성좌경,손연규,이수연,강성수,하상근,이예진 한국토양비료학회 2014 한국토양비료학회지 Vol.47 No.6
The shortage or surplus of minerals directly affects overall physiological metabolism of plants; especially, itstrongly 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-excessivetomato 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 mmolL-1 Ca(NO3)2․4H2O and 20.0 mmol L-1 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 byexcessive P. The concentrations of water soluble N (nitrate and ammonium), P and K were clearly differentwith each tissue of tomato plants as well as the mineral conditions. The NPK accumulation in all treatmentswas 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 2.79to 10.34, and particularly potassium was dominantly accumulated in petioles, stem and roots. Freshweight-based soluble sugar concentration was the greatest in NPK-sufficient condition (154.8 mg g-1) andfollowed by K-excessive (141.6), N-excessive (129.2) and P-excessive (127.7); whereas starch was thehighest in K-excessive (167.0 mg g-1) and followed by P-excessive (146.1), NPK-sufficient (138.2) andN-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). Onthe other hand, starch production was negatively influenced by total N (p<0.001), but, it showed positiverelation with total K concentration (p<0.05). This study shows that uptake pattern of NPK and production andpartitioning of soluble carbohydrate were substantially different from each mineral, and the relationshipbetween water soluble- and dry weight-based-mineral was positive.
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Seong-Tae Choi,Seong-Mo Kang 한국원예학회 2007 Horticulture, Environment, and Biotechnology Vol.48 No.6
Three-year-old ‘Fuyu’ (Diospyros kaki) trees were completely defoliated with and without defruiting on Sept. 4 to monitor changes in nonstructural carbohydrates (NSCs) and their partitioning to different parts of a tree. At fruit harvest on Nov. 3, total dry weights (DWs) of the aerial woods were 277 g and those of roots were 334 g in a control tree. DW of a control tree was increased by only 4% when defruited. DW in the roots of a defoliated tree was decreased by 29%, and defruiting restored it to 14%. A control tree on Nov. 3 contained 60.9 g of soluble sugars and 37.3 g of starch in its permanent parts, more than 60% of each being in the roots. Defruiting of a control tree increased sugars by 18% and starch by 65%. Soluble sugars in aerial wood and roots of a defoliated tree were at 40% and 28% of a control tree, respectively; when defoliated trees were also defruited, these respective percentages increased to 81 and 71. On the other hand, starch contents in the aerial wood and roots of a defoliated tree were 25% and 18% of a control tree, respectively; these respective percentages were 66 and 58 when combined with defruiting. When sugars and starch were converted to glucose equivalents, a defoliated tree contained 34% and 24% of the total level found in aerial wood and roots of a control tree, respectively. By removing the fruits from such a tree these respective percentages increased to 76 and 66. The changes and the balance of NSCs among tree parts are discussed with special regard to the sustained growth of the fruits during autumn in a defoliated tree.
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Byung-Joo Lee,Mi-Kyoung Won,Euy-Seog Yang,Jong Suk Lee,Jeffrey Gordon Atherton 한국원예학회 2004 Horticulture, Environment, and Biotechnology Vol.45 No.6
Carbohydrate production and partitioning were examined under different photoperiods in chrysanthemum (Dendranthema grandiflorum cv. Envy). Sucrose was the principal sugar at the shoot tips of chrysanthemum analyzed under inductive 10 h photoperiods. Fructose and glucose were only present in smaller quantities compared to sucrose. Sucrose content at the shoot tip increased more than 1.5-fold within a day in 10 and 13 h short photoperiods and remained static for 9 days compared to vegetative plants in 16 h photoperiods. Growth parameters such as total dry weight, leaf area, absolute growth rate, and final leaf number increased as photoperiods extended from 10 to 16 h, whereas floral development and partitioning of carbohydrate to floral parts measured by flower weight ratio were highest under 10 h photoperiods. Net assimilation rate was highest at 10 h photoperiods followed by 16 and 13 h photoperiods, indicating higher productivity of source leaves at 10 h photoperiods than of 13 or 16 h photoperiods.
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성좌경,이수연,이예진,윤홍배,하상건,옥용식 한국토양비료학회 2013 한국토양비료학회지 Vol.46 No.6
A huge number of greenhouse soils in Korea have accumulated mineral elements which induce manynutritional and pathological problems. The present study was performed to the effects of the reducedfertilization on plant growth, and uptake and partitioning of minerals (N, P, K) and soluble carbohydratesusing highly minerals-accumulated farmer’s greenhouse soil. On the basis of the recommended application fortomato crop, the application rates of N, P and K were 110(50%)-5.2(5%)-41.5(35%)kg ha-1, respectively,using Hoagland’s nutrient solution. Tomato growth rates during the whole experiment were not significantbetween treatments, but it was found that a decrease in daily growth represented after 60 days of treatment(DAT). The reduced application led to a drastic decrease in the concentration of N, P and K in fruits, and, thus,this resulted in lower uptake after 40 DAT. The lower phloem export and utilization of soluble carbohydratescaused an accumulation of extra-carbohydrates in leaves, stems and fruits in the reduced application. Thereduced fertilization induced the capture of N, P and K in leaves and of soluble carbohydrates in stemscompared to the conventional application. In this study, we suggest that it is possible to delay the firstfertigation time in minerals-accumulated soils without an adverse impact on crop growth, but it is necessary toregularly monitor mineral status in soil to ensure a balanced uptake, synthesis and partitioning of minerals andcarbohydrates.
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