Effect of pruning time and height on growth and flowering of rose (Rosa gruss-am-teplitz)
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Date
2022
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Punjab Agricultural University
Abstract
The study was conducted to find the effect of pruning time and height on growth and flowering of Rose Rosa gruss-an-teplit2). Two-year old plants were used for the research. The Five pruning time treatments (1sh September, 1sh October, 15h November, 15h December and 15h January) were combined at height of PH (45cm) and PH, (90cm) from ground level. The Factorial Randomized Block Design method was used to set up the experiment with three replications. For vegetative parameters, maximum (144.08 cm) plant height was recorded at 90 cm pruning height, maximum (93.16 cm) plant spread was recorded in 90 cm pruning height, maximum (44.00) number of branches and maximum (2027.2) number of leaves were also observed at height of 90 cm from ground level. In case of floral parameters, early (31.17) days to visible bud appearance, less (37.13) days to color break, less (45.16) days to opening of first flower and less (60.50) days to 50 % flowering were recorded
in pruning at height of 45 cm from ground level on 15h September pruning whereas maximum (7.27 cm) flower diameter was obtained on 15" November pruning. The number of petals, petal length and petal width were reported almost similar in all pruning time and pruning height treatments whereas pruning on 15h November showed maximum flower weight which was almost similar in 15 October pruning. In case of yield parameters, maximum (362.33) number of flowers was recorded at height of 45 cm height in 1sh September month pruning which was also found at par with 15 October and 15 November pruning but maximum (1715.6) flower yield was recorded at 45 cm pruning height in October which was almost recorded similar in November month pruning at 45 cm pruning height. So, on the basis of result obtained in study, pruning at height of 45 cm from 1s October to 15h November was best in improving flower yield of Rosa gruss-an-teplitz in open field
conditions of Punjab.
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Citation
Gurveer Kaur (2022). Effect of pruning time and height on growth and flowering of rose (Rosa gruss-am-teplitz) (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.