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自花后４６ｄ到８８ｄ果实成熟．黄皮种子的发芽率由０升至１００％．而活力指数逐渐上升，到花后７４ｄ达到最大值，之后略有下降．每粒种子的呼吸强度在花后４６－６７ｄ持续增加，此后则渐渐减弱，但湿藏２ｄ后又回升．黄皮种子的发育明显超前于果实．花后７４ｄ时．每粒种子的干重已接近最大值，这时种子活力最大．而果实的鲜重虽然已接近最大值．但其干重却只有成熟时的７３％。花后４６－５３ｄ的种子，其发芽率小于１００％，轻微脱水能提高种子的发芽率及活力指数，花后６０ｄ至果实成熟．种子发芽率均为１００％．这时任何程度的脱水都会引起活力指数的下降，但不同发育时期的黄皮种子耐脱水力有差别．其中以花后６７ｄ的耐脱水力最强．花后８８ｄ果实成熟时种子的耐脱水力最弱。
46d to 88d after anthesis fruit mature. The germination rate of yellow seed rose from 0 to 100%. The vitality index increased gradually, reaching the maximum value after flowering 74d and then declined slightly. The respiration intensity of each seed continued to increase 46-67 days after anthesis, then gradually weakened, but recovered after 2 days of wet storage. The development of yellow seed significantly ahead of the fruit. 74d after anthesis The dry weight of each seed is close to the maximum, when the seeds of the greatest vitality. Although the fresh weight of fruit is close to the maximum. But its dry weight is only 73% when mature. After 46-53 days after anthesis, the germination rate was less than 100%. Slight dehydration could improve the seed germination rate and vitality index, and the seeds matured 60 days after anthesis. Seed germination rate was 100%. At this time any degree of dehydration will cause a decline in vitality index, but different developmental stages of the yellow seed dewatering resistance differences. Among them, the resistance to dehydration was the strongest in 67 days after flowering. Seed dewater resistance was the weakest at 88 days after anthesis.