This regulation is applicable to all levels of original (good) seed farms, scientific research institutions, collective units and farmers to produce seed potatoes. This regulation is applicable to scientific research, teaching, production units and farmers breeding good (original) varieties of wheat to propagate wheat seeds.
GB 7412-1987 history
2003GB 7412-2003 Plant quarantine rules for wheat seeds in producing areas
1987GB 7412-1987 Quarantine Regulations for Wheat Seed Origin