University of California

Studies on the absorption and translocation of 2,4-D in bean plants


O. A. Leonard

Author Affiliations

O. A. Leonard was Associate Botanist in the Experiment Station, Botany Department, Davis.

Publication Information

Hilgardia 28(5):115-160. DOI:10.3733/hilg.v28n05p115. November 1958.

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Relationships between the composition of 2,4-D solutions and their effectiveness as herbicides were investigated. The measure of effectiveness was the reduction in fresh weight of the growth above the primary leaves of bean plants. Two methods of application were used: the drop method (0.01 ml of solution) and the spray method. Variables studied were: diluents, humectants, surfactants, types of amines and esters, concentration, and dosage. Other studies included the effect of point of application on effectiveness and on the distribution of radioactive 2,4-D in the treated leaf and in the plant. For comparative purposes, some similar studies were conducted with radioactive aminotriazole and maleic hydrazide.

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Leonard O. 1958. Studies on the absorption and translocation of 2,4-D in bean plants. Hilgardia 28(5):115-160. DOI:10.3733/hilg.v28n05p115
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