ISHS Acta Horticulturae 179: V International Symposium on Growth Regulators in Fruit Production
ETHEPHON INDUCED BLOOM DELAY OF PEACH TREES, OHIO USA |
| Authors: | R.C. Funt, D.C. Ferree |
| Abstract:
Fall applications of ethephon [(2-chloroethyl)phosphonic acid] were applied at 0, 60 and 120 parts per million (ppm) to Redhaven/Halford peach trees (Prunus persica L.) in 1980, 1981 and 1982. Ethephon delayed bloom and fruit maturity and increased winter hardiness. However, when ethephon at 120 ppm was applied at full leaf, branch and trunk damage was observed. Trees treated with ethephon at 60 ppm applied in mid-October (first leaf drop) had the smallest amount of tree damage and delay in fruit maturity but similar bloom delay as ethephon at 120 ppm. Redhaven was the most responsive cultivar to these treatments. | |
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