BEIJING -- Samples from space material and plant growth experiments carried out on China's space lab Tiangong-2 are in good condition and have been delivered to scientists for further research, the Chinese Academy of Sciences (CAS) said Saturday.

The material and plant samples were retrieved after the successful landing of the Shenzhou-11 spacecraft's reentry module Friday.

According to CAS, 12 out of 18 material samples sent to space via Tiangong-2 in September, including semiconductor, nano and thin film materials, were taken back for study, while the other six will remain in space to test their physical and chemical features in zero gravity for future development of material processing techniques.

Seeds of thale cress, a kind of flowering plant, have grown into pods after 48 days of cultivation in space, said CAS, adding that scientists will continue to grow the pods in the laboratory.