Abstract:
An experiment (RCBD) was conducted at the Horticulture Farm of Shere-Bangla
Agricultural University, Dhaka during May 2007 to April 2008
to
study the effect of spacing (S
i
:
20 x 15 cm, S
2:
20 x 20 cm and S
3:
20
x
25) and GA
3 (Go: 0 ppm, G1 : 220 ppm. G
2
: 240 ppm and G3: 260 ppm) on
growth, bulb and flower yield of tuberose. The widest plant spacing result
in the highest bulb yield (9.61 tiha) and flower yield (10.19 tlha) whereas
the closest plant spacing produced the lowest. Plant growth regulator
(GA3
) had also significant influence on the yield of tuberose. The higher
level of GA
3
(260 ppm GA3) performed the highest bulb (9.81 tlha) and
flower (II .60 tJha) production. In respect of combined effect, the widest
plant spacing (20 x 25 cm) with the highest level of GA
3 (260 ppm GA
3),
produced the highest (9.71t/ha) yield of bulb and flower (10.89 tiha).The
lowest was recorded from the treatment combination of S
0G0
. Considering
above findings the widest plant spacing (20 x 25 cm) with the highest
level GA3
(260 ppm GA3
) may be used for tuberose cultivation
