ISSN:
1573-5036
Keywords:
Nitrogen cycling
;
Nitrogen-15 tracer
;
Split root experiments
;
Triticum aestivum L.
;
Wheat
;
Xylem sap
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary One part of a split root system of wheat seedlings received full nutrient solution with15N-nitrate, the other received an identical solution with unlabelled nitrate. Appearance of labelled amino compounds was measured in the xylem sap exuding from roots not supplied directly with15N-nitrate after removal of the15N-nitrate-fed roots. This material indicates cycling of nitrogen from the shoots and through the roots. About 60 per cent of the nitrogen in the xylem appears to be cycling in this way.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02198115
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