A MODEL OF LEAF GROWTH RESPONDING TO AIR TEMPERATURES

CHIKUSHI J. and EGUCHI H. A model of leaf growth responding to air temperatures. BIOTRONICS 20, 65-71, 1991. A hysteresis model was applied to estimate leaf growth curve of cucumber leaf exposed to changing air temperature. Cucumber plants were treated with low temperature of 15°C for different periods, and thereafter grown at 25°C in a growth chamber. Observed data of leaf growth curves were fitted by the Richards equation, and were compared with the curves estimated by the model. It was demonstrated that the hysteresis model can be useful for estimating the curves of leaf growth responding to the low temperature treatment.