Certified seed I-Certified seed is produced from basic seed but it can also be produced from a higher class of seed such as pre-basic seed
Mbeu yovomerezeka I - mbeu yovomerezeka imapangidwa kuchokera ku mbeu yochulukitsa komanso ikhoza kupangidwa kuchokera ku mtundu wa mbeu wapamwamba monga ngati kholo la mbeu