C. SinghRupa Rani2024-08-302024-08-302003https://krishikosh.egranth.ac.in/handle/1/5810214127The present study was conducted to know the performance of different varieties of gladiolus during Oct-May 2001-2002 in plateau region of Jharkhand .The experiment was conducted in Horticulture Section of Birsa Agricuture University ,Kanke ,Ranchi. Fifteen treatments were used for the experiment .Corms were planted in Randomized Block Design with three Replications. Gladiolus is one of the most important bulbous flowers with its majestic flower spikes, with massive florets of brilliant colours, attractive shapes ,varying sizes and excellent keeping quality. It is ideal both for garden and for cut-flowers and occupies 5th place in the international flower trade. Gladiolus is commercially grown in the states like Maharashtra, Karnatake, West bangal and Kerela . Jharkhand has very congenial climate for gladiolus cultivation and its cultivation can definitely increase the economic condition of Farmers .Keeping this view in mind an experiment on Evolution of gladiolus cultivars was done to assess the performance of different gladiolus cultivar for quality flowers production. During the experiment it was found that variety American Beauty gave significantly maximum sprouting percentage (96.86),higher mean plant height (98.84cm ) and ultimate length of leaves per plant (43.11cm).This variety also gave best spike characters like maximum ultimate length of spike character like maximum ultimate length of spike (64.45cm) and ultimate weight of spike (69.29g) best flower characters were also shown by the variety American beauty like maximum number of florets per spike (17.24) and size of florets per spike (12.21cm) where as maximum number of days of opening of basal florets was taken by the variety Her Majesty (93.79days). Maximum duration of flowering in field condition was shown by the variety White prosperity. Maximum number of comes per plant (2.00 )and weight of corms per plant (44.37g) was found in the variety Red Majesty. While minimum plant height (75.00cm) length of leaves per plant (21.26cm) ,minimum length of spike per plant (36.38cm)lesser no of florets per spike (7.68) and minimum size of floret per spike (7.62cm) was shown by variety Rose supreme .Minimum duration of flowering in field condition (7.65 days) and vase life in aqua solution (5.33day) was shown by the variety Thoinbolina .Minimum number of corms per plant (1.26) and weight of corms per plant (24.51g) was found in the variety Blorina.Hence it can be concluded that the variety American beauty performed better that other varieties because it has topped the list in many characters like in percentage of sprouting plant height length of leaves length of spike weight of spike number and size of florets ect.EnglishThesis