
%0 Journal Article
%A Bottrill, DE 
%A Hanson, JB 
%T Short-Term Growth Response to Growth Regulators In Roots of Zea Mays
%J Australian Journal of Biological Sciences
%D 1968/04/01
%V 21
%N 2
%P 201-208
%K 
%R https://doi.org/10.1071/BI9680201
%U https://www.publish.csiro.au/paper/BI9680201 
%X A study was made of the inhibition of root growth in Z. mays by 2,4-dichlorophenoxyacetic acid (2,4-D), 2,4,6-trichlorophenoxyacetic acid (2,4,6·T), and indole-3-acetic acid (IAA) over a wide range of concentrations. IAA and 2,4·D caused identical responses whereas the response to 2,4,6-T was different. Application of 2,4.D or IAA at concentrations of 4·5xl0-4M for 5 min resulted in an immediate reversible inhibition of root growth whereas long-term application gave an irreversible inhibition. The same concentration of 2,4,6-T caused a similar degree of inhibition of root growth, but only after an extended treatment, and the roots could then recover from the inhibition in the presence of the chemical. 
