摘要：

The intensity of water uptake by halves of splitroot cuttings fromColeus blumeiBenth was measured by potometrical method. Inhibition of the water uptake induced by application of high concentrations of sodiumsalts of α-naftylacetic acid (NAA) and 2-methyl-4-chlorophenoxyacetic acid (MCPA) in the treated half of the root inducedan increase of water uptake by the other half. The compensation is not complete. If only one half of the root treated by syntheticauxin was allowed to take up water, MCPA appeared to induce a smaller degree of reversibility than NAA.

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