A comparative study of the level of abscisic acid (ABA) and cytokinin and of ethylene production by rose ( Rosa sp.) petals of the short‐lived cultivar Golden Wave (Dr. Verhage) and the long‐lived cultivar Lovita was conducted. In both cultivars, the level of ABA increased as the flowers aged; it was higher in Golden Wave in all developmental stages tested. Ethylene production by cut flowers of the two cuitivars remained low for a short time concomitant with development and then increased sharply. The rise in ethylene production occurred after 3 and 4 days in Golden Wave and Lovita, respectively. Cytokinin level increased as the flower started to open and then decreased to a low level. The significance of these changes in relation to maturation and senescence of rose petals is discussed.
No takes yet. Share an insight, caveat, or question.
Mayak et al. (1972) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: