Fig. 4.

(A) Rates of growth for the vegetative parts (broken line) and the panicle (continuous line) during growth of a rice crop. The parameter values in Table 2 were averaged for IR72 across all years to produce composite logistic curves for vegetative parts and panicle; these were differentiated to produce the curves of growth rate. (B) The cumulative pattern of above-ground growth (solid line) of the cultivar IR72 generated by adding the composite logistic descriptions of vegetative and reproductive growth.