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Cupric Ion as a Tracer to Measure Spray Application Efficiency
Author(s) -
Nichols R. L.,
Gaines T. P.,
Stephenson M. G.
Publication year - 1990
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1990.00021962008200010037x
Subject(s) - sucker , tracer , nicotiana tabacum , chemistry , biology , biochemistry , physics , anatomy , nuclear physics , gene
The uniformity and efficiency of agricultural chemical spray solutions on plants, such as sucker control chemicals on tobacco ( Nicotiana tabacum L.), needs to be determined. This study was conducted to determine if cupric ion could be used as a tracer to measure the spray applicaton efficiency of a tobacco sucker control chemical. Chlorpropham (1‐methylethyl 3‐chlorophenylcarbamate) was amended with 1.92 mmol of cupric sulfate (CuSO 4 ˙5H 2 O) to determine the relationship between leaf Cu concentration and tobacco sucker control, as measured by per unit reduction of sucker Weights. Leaf Cu was correlated positively with sucker control ( r = 0.70) and negatively with sucker weights ( r = −0.69). These results indicate that cupric ion can be used as a tracer to measure the spray application efficiency of agricultural chemicals on plants.