Abstract:When wampee seeds developed from 46 days after anthesis (DAA) to fruit maturation,the germination Percentage rose from zero to 100%, while the visor index rose from zero and attained maximum value at 74 DAA, and then dropped down slightly. The respiratory rate pergram dry weight decreased continuously, but that on per seed basis increased constantly during 46-67 DAA and fell afterwards, then rose again after wet-storage for one day. The seeds developed ahead of the fruit, the dry weight Per seed reached nearly maximum value at 74 DAA with maximum vigor index, meanwhile, the fresh weight Per fruit reached nearly maximum value, but its dry weight was only 73% of that at ripening stage. The germination percentage of the seeds during 46-53 DAA was less than 100%. Mild desiccation could improve the seed germination percentage and vigor index, and the germination percentage from 60 DAA to the days of fruit maturation were all 100%. In this Period any degree of the seed desiccation could decrease the vigor index. However, the desiccation-sensitivity of seeds during various development stages was different, among which, seeds at 67 DAA had the lowest desiccationsensitivity, while seeds at 88 DAA (maturation) had the highest.