GB/T 19557.19-2018
ActiveGuidelines for the conduct of tests for distinctness, uniformity and stability—Chrysanthemum Chrysanthemum × morifolium Ramat.（Chrysanthemum × grandiflorum Ramat.），Chrysanthemum pacificum Nakai(Ajania pacifica Bremer and Humphries)and hybrids between them
植物品种特异性、一致性和稳定性测试指南 菊花
Application Summary AI generated
This standard provides specific testing protocols for assessing distinctness, uniformity, and stability (DUS) in chrysanthemum varieties, covering both cultivated chrysanthemum (Chrysanthemum × morifolium) and related species like Chrysanthemum pacificum. It is applied by plant variety protection offices, breeding institutions, and agricultural testing centers in China to formally evaluate new chrysanthemum cultivars for registration and intellectual property rights. The guidelines ensure consistent, objective characterization of morphological traits across different growing conditions, supporting legal protection and commercial classification of ornamental chrysanthemum varieties.
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