Evaluation of Genetic Variability and Varietal Performance of Standard Chrysanthemum (Chrysanthemum morifolium Ramat.) Under Ecological Condition of Sub-Humid Zone of Rajasthan
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Date
2017-12-31
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College of Horticulture and Forestry, Jhalawar
Abstract
A field experiment was conducted during kharif season of 2016-17 (July to February) on the title “Evaluation of Genetic Variability and Varietal Performance of Standard Chrysanthemum (Chrysanthemum morifolium Ramat.) Under Ecological Condition of Sub-Humid Zone of Rajasthan at the Instructional Farm, Department of Floriculture & Landscaping, College of Horticulture & Forestry, Jhalarapatan, Jhalawar. The experiment consisted of 15 varieties ‘BC-1-123’, ‘Shova’, ‘Accession No-24’, ‘Pink Cloud’, ‘Lalima’, ‘Bravo’, ‘Jaya’, Ravikiran’, ‘Jafri’, ‘Shyamal’, ‘Pusa Chitraksha’, ‘White Star’, ‘Pusa Kesari’, ‘Thai Chung Queen’ ‘Pusa Arunodaya’ which laid out in randomized block design with three replications.
The variety ‘White Star’ was found to be superior with respect to highest plant height (56.67 cm), maximum number of leaves per plant (259.00), highest stem thickness (1.38 cm), maximum fresh flower weight (18.14 g), largest flower diameter (11.92 cm), highest stalk diameter (0.38 cm), longest stalk length (28.52 cm) and maximum duration of flowering (61.00 days). ‘Thai Chung Queen’ recorded highest vase life (18.00 days), in-situ life (21.67 days) and ray florets per flower (286.67). The early flower bud appearance (84.01) and minimum number of days taken to full bloom (94.40) was recorded in ‘Jaya’. The late flower bud appearance (113.68), more number of days taken to full bloom (129.55), highest number of cut flowers per plant (47.67), maximum number of cut flowers per plot (1340.83) and highest number of leaves per plant (260.33) was recorded in ‘Pusa Chitraksha’. ‘Shyamal’ recorded the highest plant spread (39.73 cm), whereas ‘Lalima’ was found to be inferior among all other varieties.
‘White Star’, ‘Thai Chung Queen’, Pusa Kesari’, ‘Ravikiran’ was recorded a maximum flower diameter and stalk length and these varieties were found to be superior with respect to all other varieties of standard chrysanthemum.
High heritability with high values of genetic advance as per cent mean was recorded for number of leaves per plant, leaf area, number of cut flowers per plant, number of cut flowers perplot, fresh flower weight, stalk length, stalk diameter and number of ray florets. These characters offer scope for their improvement by applying selection pressure in breeding programme.
Stalk length is significantly and positively correlated with plant height, plant spread, number of leaves per plant, fresh flower weight, flower diameter, stalk diameter and vase life.
Flower diameter is significantly positively correlated with stalk length, fresh flower weight, flower yield per plant, flower yield per plot and stalk diameter indicating improvement of these traits will directly influence the yield of flowers.
Description
Evaluation of Genetic Variability and Varietal Performance of Standard Chrysanthemum (Chrysanthemum morifolium Ramat.) Under Ecological Condition of Sub-Humid Zone of Rajasthan