Characterization of chrysanthemum (Dendranthema grandiflora) genotypes as per DUS guidelines

Abstract

Characterization and establishment of distinctiveness among 30 chrysanthemum (Dendranthema grandiflora Tzvelev) genotypes was carried out using morphological descriptors adopted from the DUS guidelines developed by PPV and FR authority on chrysanthemum. The genotypes were characterized for 41 essential characters among which six characters were monomorphic, five dimorphic and 30 were polymorphic indicating their potential for varietal characterization and distinctiveness. Out of 30 chrysanthemum genotypes studied, eight were found to be distinctive on the basis of 10 essential characters. The rest of the 22 genotypes remained in groups of two or three without being differentiated for similar traits and therefore, it is suggested to use other biological markers/DNA fingerprinting. This study will be useful for breeders/researchers/farmers to identify distinctiveness in chrysanthemum genotypes and to seek protection under Protection of Plant Varieties and Farmers Rights Act.