OBSERVATIONS ON THE FOLIAR ASSIMILATING PIGMENTS CONTENT FOR WILD AND…
48
The fresh material of foliar assimilating pigments determinations was done in the
Vegetal Physiology Laboratory of the Biology Faculty, “Alexandru Ioan Cuza” University
of Iaşi by spectrophotometric method.
Results and discussions
In the case of species, during the vegetative stage, there can be observed a higher
chlorophyll a content compared to chlorophyll b, of a ratio ranging around the value of 3/1
in all the cases.
Slightly higher values of chlorophyll were registered for the species R. damascena
(1.897 mg), R. glauca (1.576 mg) and R. pimpinellifolia (1.448 mg), with a minimum value
for the R. multibracteata (1.016 mg) species (Fig. 1).
High values of chlorophyll b are present in the species R. damascena (0.617 mg),
followed by R. glauca (0.538 mg) and R. canina (0.516 mg), while the lowest quantities are
to be found in R. rubiginosa (0.319 mg) and R. multibracteata (0.306 mg).
The minimum values of the chlorophyll a : chlorophyll b ratio are observed in R.
pimpinellifolia (2.998/1), R. glauca (2.929/1), while R. rubiginosa and R. multibracteata
have ratios that are superior to the values 3.3/1.
OBSERVATIONS ON THE FOLIAR ASSIMILATING PIGMENTS CONTENT FOR WILD AND…48The fresh material of foliar assimilating pigments determinations was done in theVegetal Physiology Laboratory of the Biology Faculty, “Alexandru Ioan Cuza” Universityof Iaşi by spectrophotometric method.Results and discussionsIn the case of species, during the vegetative stage, there can be observed a higherchlorophyll a content compared to chlorophyll b, of a ratio ranging around the value of 3/1in all the cases.Slightly higher values of chlorophyll were registered for the species R. damascena(1.897 mg), R. glauca (1.576 mg) and R. pimpinellifolia (1.448 mg), with a minimum valuefor the R. multibracteata (1.016 mg) species (Fig. 1).High values of chlorophyll b are present in the species R. damascena (0.617 mg),followed by R. glauca (0.538 mg) and R. canina (0.516 mg), while the lowest quantities areto be found in R. rubiginosa (0.319 mg) and R. multibracteata (0.306 mg).The minimum values of the chlorophyll a : chlorophyll b ratio are observed in R.pimpinellifolia (2.998/1), R. glauca (2.929/1), while R. rubiginosa and R. multibracteatahave ratios that are superior to the values 3.3/1.
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