Variability, heritability and association analysis in plant traits of swiss chard (Beta vulgaris subsp. cicla)

Genetika

关键词: heritability;    genetic advance;    Swiss chard;    variability;    quantitative characters;   

DOI  :  10.2298/GENSR1102239E

来源: DOAJ

【 摘 要 】

Plant breeders mainly interested in improvement agronomic properties ofdesirable trait accompanied with genetic architecture of major characters andtheir interrelationship. Genetic variability and character association areprime importance and provide essential contribution for successful breedingprogramme. In the present research genetic variability, heritability,phenotypic and genotypic correlations of several agronomic characters werestudied in fifty-four swiss chard accessions and cultivars. Analysis ofvariance observed highly significant variations among accessions, andphenotypic coefficient of variation (PCV) was higher magnitude of genotypiccoefficient of variation (GCV) for all agronomic characters. The laminalength, lamina width, petiole thickness, petiole width, lightness, chroma andleaf dry matter observed high magnitude broad sense heritable charactersaccompanied with high genetic advance. Genotypic correlation coefficientshowed higher than phenotypic correlation coefficient which could beexplained by low environmental effect on investigated agronomic traits.Positive correlation was revealed between petiole length, lamina length,lamina width, petiole thickness and petiole width which comprise total yieldin swiss chard.

【 授权许可】

Unknown