Co-Authors:
Fishman, S., Department of Statistics and Experiment Design, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Erez, A., Department of Fruit Trees, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Couvillon, G.A., Department of Horticulture, University of Georgia, Athens, GA 30602, United States
Abstract:
Experimental studies of breaking of peach bud dormancy under controlled temperature conditions are used for estimation of parameters of a dynamic two-step model involving a cooperative transition. The parameters are installed into an adequate computer program for simulation of the dormancy breaking at cycled temperature regimes. The calculated results are compared with available experimental data obtained for constant temperatures and for two-temperature cycles. In accordance with experimental observations, the simulations show the bell-shaped dependence on temperature for dormancy completion; negation of the chilling effect by high temperatures; dependence of the effect on the cycle length; and the enhancement of the effect by short applications of high temperatures. © 1987 Academic Press Inc. (London) Ltd.