2.2. Total proteins content.
The result showed that GA3 application affected the content proteins, in trial at 10
1
mgl
reduced the soluble protein content in the leaf there for increasing soluble protein
content in the petal, (table2), This could be cause translocation the protein towards the
flower. This was coincident whit what was previously reported for rose, GA3 may block the
cynthesis of enzymes involved in starch hydrolysis, as is seen in carnations (Ho and
Nichols, 1997), or fractal hydrolysis, as seen in daylily (Bielesk, 1993). This action inhibits
the decline in petal osmotic potential and resultant in flux of water to expand petal tissue
(Jones, Margrethe Serek, 1994).
The initial increase in soluble protein concentration in petals (fig 2) suggests
increased protein synthesis during the rapid bud development phase. Thereafter, declining
soluble protein concentration accord whit reports for other flowers such as daylily (Lay–Yee
et al.1992) cell expansion and water uptake are associated with flower opening and can
contribute to a decrease in soluble protein concentration. protein content of flowers absorb
leaf protein so decllintheir content after 5 day (fig 2) proteins may have been trans located
within the leaf to the flowers reported by Joyce ∞ Jones (1992).
e(5mg/l f(10mg/l)
g(15mg/l) h(0mg/l)
Fig 2: effects of GA3 (0,5,10,15 mg/l) onchange soluble protein oftheuppermosleaf and
petalon gladiolus (e, f, g, h).
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