MORPHACTINS AS POSSIBLE FRUIT THINNING AGENTS FOR PEACHES

Trials with morphactins (derivatives of fluorene-9-carboxylic acid) as fruit thinning agents on cultivars of peach (Prunus persica Batsch) have shown that aqueous solutions of 30–40 ppm applied 10 days after full bloom induce a thinning effect similar to that obtained by the routine hand thinning commonly carried out 40 days after full bloom.
Small scale trials with ¹⁴C-labelled morphactins have suggested a possible mode of action of these compounds as thinning agents.

Symposium on growth Regulators in Fruit Production

J. Hugard, H. Clanet, A. Carbonneau

https://doi.org/10.17660/ActaHortic.1973.34.47