Author (s): H. Mehraj, T. Taufique, A.F. Ona, M.Z.K. Roni and A.F.M. Jamal Uddin*
*Corresponding author; jamal4@yahoo.com
Abstract
An
experiment was conducted at Department of Horticulture, Sher-e-Bangla
Agricultural University, Dhaka, Bangladesh to
evaluate the effect of gibberellic acid (150-ppm GA3, G)
on gerbera. Four treatments, namely G0;
no spray of GA3 (Control), G1; one time spray of GA3
at 15 days after transplanting (DAT), G2: two times sprays of GA3
(at 15 and 30 DAT) and G3: three times sprays of GA3 (at
15, 30 and 45 DAT) were used in the present study. It was observed that G3
performed as the best treatment in terms of having significantly higher number
of leaves plant-1 (58.7), plant height (50.5 cm), individual leaf
area (35.8 cm2), chlorophyll content, number of flower plant-1
(16.3), peduncle length (36.1 cm), peduncle diameter (3.1 mm) and flower head
diameter (7.4 cm). G3 also took the maximum days for the first
flower bud initiation (83.8 days) while G0 took the minimum days
(65.7 days). So, it was interpreted that
three times spraying of GA3 caused delay in flowering ensuring
proper vegetative growth for producing maximum flower production.
Key words:
Gerbera, repeated spray of GA3, growth and flowering
J. Expt. Biosci.
4(2):7-10, July 2013 ISSN 2223-9626 (Online), ISSN 2077-3358
(Print)
Full pdf: PDF
