Magnesium Uptake by Soybeans

Magnesium uptake by soybeans.

Magnesium contents of soybean (Glycine max) roots increase and the K and Ca contents decrease with increased MgCl(2) concentrations in ambient solutions. The Mg uptake is inhibited when both Ca and K are present in the solution, but not by K or Ca alone. Chloride uptake, which is very low from the MgCl(2) solution, is greatly enhanced by the presence of K. The selectivity against Mg imparted by...

Iron Uptake-Transport of Soybeans as Influenced by Other Cations.

Of the many factors affecting the absorption of iron by plants, the interference of other metal ions appears quite important. Hewitt (8, 9), Nicholas (14,15), and Millikan (12,13) found nickel, cobalt, zinc, and copper to induce iron deficiencies in a number of annual crops. Nicholas found high concentrations of these interfering metals reduced the iron content of the leaves of affected plants....

Antimetabolite sensitivity and magnesium uptake by thermally stressed Vibrio parahaemolyticus.

Metabolic inhibitors were added to a culture medium inoculated with theramlly stressed Vibrio parahaemolyticus to obtain information pertaining to biosynthetic processes required for recovery from heat damage. Ribonucleic acid and protein syntheses, in addition to membrane repair, were required during recovery of injured cells. Neither nucleic acid nor Mg2+ leakage was noted to occur during the...

Modelling potassium uptake by wheat

A model has been used to simulate potassium (K) uptake by wheat in a pot culture experiment. Three soils from India, namely Alfisol, Inceptisol and Vertisol, were differentially K exhausted by Sudan grass (Surghum vulgare var. Sudanensis) for a period of 280 days and were used to simulate potassium uptake by wheat (Triticum aestivum) and also to predict the amounts of K released or fixed during...

Yield and nitrogen uptake of soybeans and safflower plants grown on alkaline soil as affected by iron chelate, CCC and nitrogen