Genotypic evaluation of open cultivated floribunda roses (Rosa hybrida L.) Based on floral parameters

Evaluation of floribunda varieties of roses was carried out based on 18 floral parameters under open conditions. Among 20 varieties tested, flower size was observed maximum in ‘White Queen Elizabeth’ (11.40 cm) and the flower stem length was the maximum in ‘Brown Velvet’ (82.16 cm). Flower colour varied from red, purple, yellow to orange group and 11 cultivars were found fragrant. The maximum vase life of flowers (8 days) was recorded in ‘Rumba'and ‘Charisma’. The maximum number of flowering stems per plant (4.67) was observed in ‘Zorina’ and ‘Brown Velvet’, whereas, maximum number of petals per flower was recorded in ‘Arunima’ (66.33). The maximum days for visible bud (155.67 days) and bud formation (157.67 days) was observed in ‘White Junior Miss’, while maximum days for colour development (161.67 days) and opening of flower (167.67 days) were required in ‘White Junior Miss’. The maximum days for senescence (196.33 days) were recorded in ‘Eureka’. The maximum bud length (31.31 mm) was recorded in ‘White Queen Elizabeth’ and the maximum bud diameter (15.26 mm) appeared in ‘Brown Velvet’. The maximum pollen viability was observed in ‘Brown Velvet’ (71.67%) and maximum pedicle length occurred in ‘Banjaran’ (11.76 cm). The maximum duration of flowering (41 days) was observed in ‘Hot Cocoa’, ‘Judi Garden’, and ‘White Junior Miss’. The seed setting was observed only in five of the 20 floribunda cultivars of roses evaluated.