Effect of Gibberellin and Cytokinin
the longest spathes (6.53 cm) followed by the control plants produced spathes of
5.97 cm. The other levels of growth regulators were found less effective regarding
the spathe length of anthurium. The shortest spathes (5.25 cm) were obtained from
the plants treated with T 6 (Table 6).
Stalk length (cm)
Significant differences were observed between the effects of different plant growth
regulators on the stalk length of anthurium flowers. T 4 was the most effective
treatment produced the longest stalks (15.82 cm) statistically at par with control
plants (15.33 cm). The rest of the treatments were found non-effective (Table 6).
The shortest stalks were recorded with the plants treated with T 2 (12.83 cm).
Spadix length (cm)
The exogenous application of plant growth regulators exhibited significant effects
on the spadix length of anthurium. The pooled results revealed that control plants
produced the longest spadix (4.17 cm), which was statistically at par with the
plants treated with T 5 (4.08 cm), T 3 (4.03 cm), T 4 (3.88 cm) and T 2 (3.82 cm)
respectively (Table 6). The shortest spadix length (3.08 cm) was obtained with the
plants treated with T 1 statistically at par with the effect of T 6 (3.37 cm).
Spathe width (cm)
The pooled result established T 5 as the most effective treatment produced widest
spathes (5.60 cm) statistically at par with control plants (5.50 cm). The rest
treatments were proved less effective. The shortest spathe width (4.60 cm) was
obtained from the plants treated with T 1 (Table 6).
Spadix circumference (cm)
The effect of plant growth regulators on spadix circumference of anthurium was
found to be statistically significant. GA 3 at lower concentration (T 3 ) recorded the
highest spadix circumference of anthurium (1.33 cm). Plants treated with T 5 (1.24
cm) and T 2 (1.21 cm) performed at par with control plants (1.19 cm). The rests
were found less effective regarding the spadix circumference. The shortest spadix
circumference (0.88 cm) was obtained from the plants treated with T 1 (Table 6).
Vase-life of flowers (days)
Plant growth regulators had significant influence on the post-harvest life of cut
anthurium flowers. T 2 was identified as the best treatment recorded the maximum
(12.33) days of vase-life followed by T 1 (12.17 days). Other plant growth regulator
applications showed less marked effect (Table 6) including T 6 recorded the
minimum days of post-harvest life (10.83 days).
Int. J. Bioinformatics and Biological Sci.: v.2 n.1&2, p. 41-53. March & June 2014
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