The effect of space flight on seed is weakened when the seed moisture content approaching 10%～12%,reversely the effect is strengthene.

were treated by space flight,and young tender leaves of the germinated plants were used as explants for callus induction,testing the effects of different exogenous hormones on the tissue culture.

Seeds of Brassica juncea var gemminfera were treated by space flight,and contents of chlorophyll and soluble carbohydrate in leaves of the germinated plants were tested.

It is necessary to establish the traffic control communication system with centre upon mobile vehicle satellite communication on-the-move,which could improve traffic control ability,and traffic police′s ability of reacting quickly and solving question.

The developing progress of the seeds,which were of the SP1 from the seeds carried by satellite,was observed and analyzed,comparing with the control.

No significant statistic differences in plant height of SP 1 of fspring were observed between four cultivars of Chrysanthemum carried by satellite (A,C ,E,H) and the control except for H variant.