Effect of Different Dates of Planting on Growth and Flowering of China aster [Callistephus chinensis (L.) Nees] cv. Arka Archana

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Date
19-06-18
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OUAT,Bhubaneswar
Abstract
An experiment entitled “Effect of Different Dates of Planting on Growth and Flowering of China aster [Callistephus chinensis (L.) Nees] cv. Arka Archana” was carried out at the Department of Floriculture and Landscaping, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar, Odisha during October, 2017 to May, 2018. The experiment consisted of nine planting dates (10th October, 20th October, 30th October, 10th November, 20th November, 30th November, 10th December, 20th December and 30th December). The study was conducted as a pot culture trial in form of Completely Randomized Design with nine treatments replicated thrice in cv. Arka Archana of china aster. The results indicated significantly higher plant height (42.11 cm), maximum stem girth (2.70 cm), maximum leaf area (32.99 cm2), highest number of flowers per plant (50.16), longest flower stalk length (26.18 cm) and longest flowering duration (41.90 days) under 10th November planting. Maximum number of leaves (292.93), maximum plant spread in E-W direction (32.82 cm) and N-S direction (33.14 cm), earliest bud initiation (65.17 days), earliest bud showing colour (75.55 days) and earliest flowering (78.33 days) was recorded under 30th November planting. Seedlings planted on 30th October recorded maximum fresh weight (6.87 g) and dry weight (1.28 g) of leaves, maximum flower diameter (5.90cm), maximum shelf life of flowers (3.09 days) and maximum vase life of cut flowers (12.83days). Maximum number of branches (15.89) and longest bloom life (20.6 days) was recorded under 20th November planting. Seedlings planted in 20th October recorded maximum fresh weight (3.73 g) and dry weight (0.76 g) of flowers. Thousand seed weight (2.51 g) was recorded maximum under 10th October planting. Minimum results for almost all parameters like plant height, leaf area, number of branches per plant, fresh weight and dry weight of leaves, length of flower stalk, flower diameter, flowering duration, fresh weight and dry weight of flowers, shelf life of flowers, vase life of flowers, thousand seed weight and delay in bud initiation, bud showing colour and first flowering was recorded under 30th December planting. However, parameters like plant spread (E-W and N-S), stem girth, number of leaves per plant, number of branches per plant and number of flowers per plant were recorded minimum under 10th October planting while bloom life was shortest in 30th October and 10th November planting.
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