Influence of soil applications of nitrogen on nitrate reductase activity, leaf and grain protein content in sorghum

1981 ◽  
Vol 60 (3) ◽  
pp. 423-434 ◽  
Author(s):  
Christianah O. Ajakaiye
Keyword(s):  
Nitrate Reductase ◽  
Protein Content ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Grain Protein Content ◽  
Grain Protein

Relationship of Nitrate Reductase Activity to Grain Protein Production in Wheat 1

Crop Science ◽  
1970 ◽  
Vol 10 (3) ◽  
pp. 280-285 ◽  
Author(s):  
Lavoy I. Croy ◽  
R. H. Hageman
Keyword(s):  
Nitrate Reductase ◽  
Nitrate Reductase Activity ◽  
Protein Production ◽  
Reductase Activity ◽  
Grain Protein ◽  
Relationship Of

scholarly journals Nitrogen assimilation and nitrate reductase activity in tomato seedlings. II. Effect of increasing calcium doses in the presence of high magnesium concentrations on nitrate reduction and protein content

2015 ◽  
Vol 46 (2) ◽  
pp. 275-283
Author(s):  
A. Suder-Moraw ◽  
J. Buczek
Keyword(s):  
Nitrate Reductase ◽  
Protein Content ◽  
Nutrient Solution ◽  
Nitrate Reductase Activity ◽  
Calcium Concentration ◽  
Nitrogen Assimilation ◽  
Reductase Activity ◽  
Dry Weight ◽  
Tomato Seedlings ◽  
Excessive Accumulation

A 3:30 Ca:Mg ratio in the nutrient solution produces in tomato seedlings symptoms of Ca<sup>2+</sup> deficit owing to excessive accumulation of Mg<sup>2+</sup> ions and the depressed Ca<sup>2+</sup> accumulation. As a result of this a decrease in dry weight increment and protein content is observed together with inhibition of nitrate reductase activity. A doubled Ca<sup>2+</sup> dose in the nutrient solution, that is a change in the Ca:Mg ratio to 6:30 abolishes the external symptoms of Ca<sup>2+</sup> deficit and reduces Mg<sup>2+</sup> accumulation, that of Ca<sup>2+</sup> ions remaining unchanged. At the same time an enhanced activity of nitrate reductase appears, reaching values close to those in control plants. Tomato seedlings grown on a 3-fold increased Ca<sup>2+</sup> dose (Ca:Mg = 9:30) did not differ at all from the control ones. An in-crease in calcium concentration in the nutrient solution, the high magnesium dose remaining unchanged, causes enhanced K<sup>+</sup> accumulation, and this may affect nitrate absorption and reduction. It would seem that Ca<sup>2+</sup> deficit in plant tissues induced by excessive Mg<sup>2+</sup> accumulation with unsuitable Ca:Mg ratio in the nutrient solution in cause of disorders in NO<sub>3</sub> nitrogen assimilation.

Nitrate Reductase Activity in Corn Leaves as Related to Yields of Grain and Grain Protein 1

Crop Science ◽  
1973 ◽  
Vol 13 (3) ◽  
pp. 343-350 ◽  
Author(s):  
E. L. Deckard ◽  
R. J. Lambert ◽  
R. H. Hageman
Keyword(s):  
Nitrate Reductase ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Grain Protein
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