The thermogenesis curves of the germination of different rice and tree seeds were determined and studied by using a newly constructed microcalorimeter. The thermogenesis curves of the germination of the seeds demonstrate the existence of physiological triphasic patterns, which include imbibition, activation and growth stages in the germination process. The thermodynamics and thermokinetics of the main growth phase of the growth stage in the germination process have been studied. The growth heat effect (Δ
H), the growth rate constant (
k), the growth inhibitory factor (
s) and deceleration rate constant (
β) have been determined and calculated, In addition, the experimental thermokinetic equations of the growth stage in the seed germination process have been established.