PLANT GROWTH OPTIMISATION USING A SMALL COMPUTER
Process simulation without using actual plants has indicated adequate values of step size and direction in each method as well as the pattern for pursuing the time-dependent optimum (Fig. 3).
The results with leaf lettuces grown for five days under a constant light intensity confirms the basic pattern which Heath, (1969) suggested. The optimum condition for maximum CO2 uptake changes considerably with time and its daily course is not consistent.