Home / Standards / GB/T 17315-2026 GB/T 17315-2026 Upcoming Technical code of practice for seed production of maize 玉米种子生产技术规程 Standard Type GBT ICS 65.020.20 CCS B 05 Status 即将实施 Issue Date 2026-02-27 Implementation 2026-09-01 Responsible Dept 农业农村部 Drafting Unit N/A