Changes in direction of growth as induced by unilateral auxin application to apple shoots

L. S. Jankiewicz

Abstract


Lanolin paste containing indoleacetic acid, applied unilaterally to the elongating internodes of apple shoot, caused a marked change in its direction of growth. Measurements taken during autumn have shown that the treated internodes were not longer than those of control shoots. There was a short zone a few cm above the treated area with inhibited internodes and small leaves. Possibilities for practical application of the described method exist.

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