Dr. NATARAJ. S KMANJULA, B. S.Dr. LAKSHMANA. D2021-12-212021-12-212015-06-20https://krishikosh.egranth.ac.in/handle/1/5810179577An experiment was carried out to study the performance of twenty five genotypes of dahlia for genetic variability, heritability, correlation and path analysis at the department of FLA, College of Horticulture, Mudigere during Dec 2014 - April 2015. The superior performance with respect to growth as well as yield attributes was recorded by the genotypes Sourav (3,25,925 flowers per hectare), Saraladevi (2,95,184 flowers per hectare) while the genotype Joyal Singh showed minimum. Analysis of variance revealed highly significant difference among the genotypes for growth, flowering, yield and quality parameters. High heritability with high genetic advance was observed for plant height at 60 and 90 DAT, number of branches at 30,60 and 90 DAT, stem girth at 30 DAT, leaf length at it’s peak stage of growth, leaf width at it’s peak stage of growth, stalk length, number of days taken to first flowering, number of days taken to 50 per cent flowering, number of days taken for complete flowering, number of flowers per plant, number of tubers per plant, number of flowers per hectare, flower weight, tuber weight, flower diameter, number of petals per flower and vase life, indicating predominance of additive gene component. Thus, there is ample scope for improving these characters through direct selection. Number of flowers per hectare had strong positive correlation with plant height at 120 DAT, number of branches per plant at 120 DAT, internodal length at 120 DAT, duration of the crop, flower weight, flower diameter, stalk length, tuber number, tuber weight and vase life. Direct effect of path analysis for flower yield was recorded highest for plant height at 120 DAT, number of days taken to first flowering, flower weight, stalk length, tuber number, tuber weight and vase life.EnglishThesis