select seedsYour best assurance of getting good results is to choose certified seed. Certified seed has a high degree of varietal purity. A representative from an official seed-certifying agency checks the purity of the crop in the field and examines the harvested seed. Certified seed always has an official label.If you keep your own peanuts for seed, handle and store varieties separately. Drill box surveys show that peanuts can become mixed in one year. When mixed, performance usually falls below the best variety in the mixture.