THE RELATIONSHIP BETWEEN STRUCTURE AND FUNCTION OF SURFACTANTS USED FOR REHYDRATION OF CUT ASTILBE, BOUVARDIA AND ROSES
Previous research established that a 24 h pulse treatment with an aqueous solution containing 0.25 ml.1-1 nonylphenolpolyglycol ether (as formulated in the preparation Agral-LN from ICI) effectively enhanced the water uptake by cut rose flowers following dry storage. The use of this surfactant, however, has been questioned as it contains a benzene ring which results in limited biodegradability. We compared the effectiveness of a range of surfactants, with or without a benzene ring, on flower water uptake after 24h of dry storage at 20 °C, 60% RH and 12h photoperiod (15 μmol. m-2.sec-1) in Astible cv. Cattleya, Bouvardia cv. Artemis Jowhite and Rose cv. Sonia. We conclude that some surfactants without a benzene ring were as effective in improving water uptake and flower quality as surfactants with a benzene ring. The biodegradability of the surfactants without a ring was higher.
Pak, C. and van Doorn, Wouter G. (1991). THE RELATIONSHIP BETWEEN STRUCTURE AND FUNCTION OF SURFACTANTS USED FOR REHYDRATION OF CUT ASTILBE, BOUVARDIA AND ROSES. Acta Hortic. 298, 171-176