General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 17980.21-2000
Scope
This standard specifies the methods and basic requirements for field trials of fungicides to control the following cereal seed-borne diseases: wheat smut (Tilletia caries), wheat light smut (Tilletia foetida), wheat loose smut ( Ustilago tritici), wheat stem smut (Urocystis tritici), wheat root rot [Bipolaris sorokiniana (asexual generation); Cochliobolus sativus (sexual generation)], wheat snow mold leaf blight [Gerlachia nivalis (asexual generation); Monograghella nevalis (sexual generation)], barley loose smut (Ustilago nuda), barley hard smut (Ustilago hordei), barley net spot disease [Helminthosporium teres (asexual generation); Pyrenophoya teres (sexual generation)], oats Loose smut (Ustilago avenae), Oat root smut (Ustilago levis). This standard is applicable to the field efficacy plot test and efficacy evaluation of fungicides for the control of wheat, barley, and oat seed-borne diseases. Other field efficacy tests shall be carried out with reference to this standard.
GB/T 17980.21-2000 history
2000GB/T 17980.21-2000 Pesticide-Guidelines for the field efficacy trials(I)-Fungicides against seed-bonecereal fungi