Maitra and Roychowdhury
Days required from spadix visible to full bloom stage
The effect of plant growth regulators on the days required for full bloom stage was
found to be statistically non-significant. However, the results indicated that T 0
and T 1 were the most effective treatments (Table 5) required 5.83 days to reach the
full bloom stage and T 6 showed the most delayed effect (7.50 days).
Number of flowers per plant
The effect of plant growth regulators on the production of flowers of anthurium
was found to be statistically significant. Results reported that T 3 was the best
performer produced 3.33 flowers per plant (Table 5) which was statistically at
par effective with T 1 and T 2 (3.17), T 4 (2.83) and control (2.83). T 5 produced less
marked effect (2.50 flowers per plant). Plants treated with T 6 produced the lowest
number of flowers per plant (1.50).
Field-life of flowers (days)
The use of growth regulators differed significantly in their effect regarding the
field-life of anthurium flowers. Results represented that a mixture of BA and
GA 3 (T 5 ) as the most effective treatment regarding the field-life (36.00 days) of
anthurium which was statistically at par with T 3 treated plants (33.17 days). The
treatment T 6 proved harmful for the field-life (23.50 days) of flowers.
table 6 : Effect of plant growth regulators on the flower quality of Anthurium
andraeanum cv. Nitta.
Spathe
Stalk
Spadix
Spathe
Spadix
vase-life
treatments
length
length
length
width
cumference
(days)
(cm)
(cm)
(cm)
(cm)
(cm)
t 0
5.97
15.33
4.17
5.50
1.19
11.33
t 1
5.33
14.57
3.08
4.60
0.88
12.17
t 2
5.55
12.83
3.82
5.13
1.21
12.33
t 3
5.67
14.52
4.03
4.67
1.33
11.83
t 4
5.65
15.82
3.88
4.95
1.08
11.50
t 5
6.53
14.40
4.08
5.60
1.24
11.00
t 6
5.25
13.38
3.37
4.65
0.98
10.83
S. Em ±
0.17
0.42
0.14
0.15
0.03
0.25
c.D. at 5%
0.51
1.21
0.42
0.45
0.09
0.72
Spathe length (cm)
Plant growth regulators had profound influence on the spathe lengths of anthurium
flowers. The pooled result established T 5 as the most effective treatment produced
50
Int. J. Bioinformatics and Biological Sci.: v.2 n.1&2, p. 41-53. March & June 2014