Relationship between Respiratory Metabolism and Diapause of Pupae of Apocheima cinerarius

The research on oxygen consumption of the pupae of Apocheima cinerarius is determined with Warburg manometric.The respiratory rates [μL(O2)/(mg·h)] of diapausing pupae is characterized by conspicuous reduction in the metabolic intensity with the prolongation of the pupal period.Metabolism rate of papuae follows classic U shaped pattern and the bottom region of the curve lasted for nearly 180～210 days.The respiratory rate 0.03 μL(O2)/(mg·h) is the starting point of diapause and 0.15 μL(O2)/(mg·h) is the terminated diapause of the pupae.Keeping pupae, which has been developed for 45 days at 20℃ and then under 4～6℃ (cold stimulation) for 60 days, diapuase termination could be shifted to an earlier time of 90～120 days.