The accumulation and distribution of sodium in tomato strains differing in potassium efficiency when grown under low-K stress

Figdore, Scott S.; Gabelman, W. H.; Gerloff, G. C.

doi:10.1007/bf02370156

Cited by 21 publications

(10 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The modified Hoagland solutions possess 7.75 × 10 3 M ionic strength, which is about the same as the culture solution. The similarity of ionic strengths between these two solutions makes constant solution phase AR k levels in the sand-zeolite culture system possible• Experimental results supported the assumption that counterions of zeolite IE-96 can be ~ AR k 5.88 x 10 -3 converted into designed K concentration ratios, and Na-ions can be minimized• At the end of percolation, an average Na concentration in the effluent solution was 22.2/zM which is closed to the Na concentration from uncontrolled sources of 14/~M (Figdore et al, 1987). Whether the small cage of zeolite still contains Na-ions was not determined in this experiment• Column replacement was an effective procedure for zeolite counterion alterations because equilibrium was established between zeolite and influent solution• In addition, there was no mechanical breakdown of zeolite, and effluent solutions were easily monitored•…”

Section: Zeolite Counterion Alterationsupporting

confidence: 49%

See 1 more Smart Citation

A sand-zeolite culture system for simulating plant acquisition of potassium from soils

Chen

Gabelman

1990

Plant Soil

Self Cite

View full text Add to dashboard Cite

A sand-zeolite culture system simulating plant acquisition of K from soils has been developed. The system, a mixture of synthetic zeolite 1E-96 and coarse-sand, provides K concentrations comparable to soils depending on the K concentration ratios of solutions loaded onto the cation-exchange sites of the zeolite and the ionic strengths of the nutrient solutions supplied during the period of plant growth.Tomato (Lycopersicon esculentum Mill.) strain 203, PI 124163, was used in this study. An increase in the amount of the loaded zeolite per culture pot did not shift solution phase K activity ratios (AR k) of the culture system but did result in a linear increase of plant dry matter accumulation, indicating that K bioavailability is diffusion-limited in the sand-zeolite culture system as in soils.

show abstract

Section: Zeolite Counterion Alterationsupporting

confidence: 49%

“…Tomato strains differ in their capacity to substitute Na for K when grown at low-K stress (Figdore et al, 1987). A culture system used for studying such plants efficient in K acquisition should minimize Na sources.…”

Section: Zeolite Pretreatmentmentioning

confidence: 99%

A sand-zeolite culture system for simulating plant acquisition of potassium from soils

Chen

Gabelman

1990

Plant Soil

Self Cite

View full text Add to dashboard Cite

show abstract

“…Four indeterminate-tomato strains previously identified as efficient in K absorption, but differing in K-use efficiency were used in this study (Chen and Gabehnan, 1995;Makmuretal., 1978;Figdore etal., 1987 (Figdore et al, 1987) under low-K stress. Therefore, Na was experimentally excluded from this investigation to avoid any interference with K. A hydroponic culture system with a continuous flow of nutrient solution was set up.…”

Section: Plant Materials and Growth Conditionsmentioning

confidence: 99%

“…Thus, the importance ofK to tomato has been extensively studied (Chen and Gabehnan, 1995;Figdoreetal., 1989;Makmuretal., 1978;Rush and Epstein, 1981;Wakhloo, 1980;Widders and Lorenz, 1979). Among the studies, a strong emphasis has been placed on the variation of tomato germplasm in K requirements; several types of efficient variants have been isolated, some of which include Kabsorption (Chen and Gabehnan, 1995), K-use (Makmur et al, 1978), and sodium (Na) substitution (Figdore et al, 1987(Figdore et al, ,1989.…”

Section: Introductionmentioning

confidence: 99%

Potassium‐transport rate from root to shoot unrelated to potassium‐use efficiency in tomato grown under low‐potassium stress

Chen

Gabelman

1999

Journal of Plant Nutrition

View full text Add to dashboard Cite

Four tomato (Lycopersicon esculentum Mill.) strains (203, 474, 546, and 576) that are equally efficient in potassium (K) absorption, but different in efficiency of K use were studied using a continuously flowing solution culture to determine the importance of K-transport rate from root to shoot in relation to K-use efficiency. Strains 203 and 546 are inefficient in K use, ratios of K in shoots to roots were found to be three times higher than those of the two Kuse efficient strains 474 and 576 when grown under low-K stress (0.1 mM). In addition, both the K concentrations and rates of K flow in xylem exudates of decapitated strains 203 and 546 were significantly higher than those of strains 474 and 576. These results suggest that high rates of K transport from roots 1 Florida Agricultural Experiment Station Journal Series No. R-06629.

show abstract

“…(Smith, 1974), tomato (Lycopersicon esculentum Mill.) (Besford, 1978;Figdore et al, 1987), cotton (Gossypium spp.) (Balaguru and Khanna, 1982), and sugar beet (Beta vulgaris L.) (Moraghan, 1985).…”

Section: Introductionmentioning

confidence: 99%

Effects of Sodium on Potassium Nutrition in Three Tropical Root Crop Species

Ivahupa¹,

Asher²,

Blamey

et al. 2006

Journal of Plant Nutrition

View full text Add to dashboard Cite

The potassium (K) nutrition and high K requirement of tropical root crops may be affected by their sodium (Na) status, as has been observed in a number of plant species. Solution culture was used to study the effects of K and Na supplies in tannia [Xanthosoma sagittifolium (L.) Schott.], sweetpotato [Ipomoea batatas (L.) Lam.] and taro [Colocasia esculenta (L.) Schott]. At low K supply, Na ameliorated symptoms of K deficiency and increased growth in tannia, and to a lesser extent in sweetpotato, but not in taro. None of the species responded to Na at adequate K supply. Differences in response to Na were attributed to differences in Na translocation to plant tops. At maximum Na supply, the Na concentration in index leaves averaged 1.82% in tannia, 0.205% in sweetpotato, and 0.0067% in taro. An increase in the supply of Na resulted in a shift in the critical K concentration for deficiency (i.e., 90% of maximum yield) in index leaves from 2.9% to 1.2% in tannia, and from 4.8% to 2.5% in sweetpotato. The critical K concentration in taro was 3.3%, irrespective of Na supply. To overcome the problem in tannia and sweetpotato of determining the critical concentration relevant to a leaf sample of unknown K status, a relationship was established for each species relating the critical K concentration to the concentration of Na in the index leaves.

show abstract

The accumulation and distribution of sodium in tomato strains differing in potassium efficiency when grown under low-K stress

Cited by 21 publications

References 6 publications

A sand-zeolite culture system for simulating plant acquisition of potassium from soils

A sand-zeolite culture system for simulating plant acquisition of potassium from soils

Potassium‐transport rate from root to shoot unrelated to potassium‐use efficiency in tomato grown under low‐potassium stress

Effects of Sodium on Potassium Nutrition in Three Tropical Root Crop Species

Contact Info

Product

Resources

About