Dhatt, K.K.Sarpreet Kaur2018-05-272018-05-272018http://krishikosh.egranth.ac.in/handle/1/5810047781The present studies entitled "Genetic analysis for plant growth and floral parametres in pansy (Viola tricolor L.)" were undertaken at the Floriculture Research Farm of Punjab Agricultural University, Ludhiana during the year 2013-2015. Five inbred lines of pansy were used for the experiment and crosses were attempted in diallel. The results pertaining to the analysis of variance for experimental design and combining ability were highly significant for all the characters. P3 (Pa-32) was found as the best general combiner for plant height at first flowering, plant height at peak flowering, plant spread, days to first flower opening, duration of flowering and flowers per plant. The cross P1 × P3 had highest significant sca values for plant height at first flowering, plant height at peak flowering flowers per plant and flower size. The cross P1 × P3 exhibited maximum heterosis for plant height and plant spread. The highest magnitude of heterosis was observed in P4 × P3 for flower count. The maximum phenotypic coefficient (19.60%) was found with flowers per plant followed by plant height at peak flowering (18.84%). Higher genotypic coefficient (18.97%) was found with number of flowers per plant followed by plant height at peak flowering (18.71%).The heritability ranges between 49.01% and 98.71% for different parametres. The estimates of genetic advance (%) varied from 4.61 to 38.30.ennullThesis