3rd International Symposium on Biodiversity Research, Erzurum, Türkiye, 20 - 22 Ekim 2021, ss.68
Oriental
sweetgum (Liquidambar orientalis
Mill.) is an important endemic species for both wood and non-wood use in
Turkey. In the present study, it is aimed to reveal the change of
photosynthetic pigment content of oriental sweetgum in summer period. The
leaves collected from five oriental sweetgum individuals in the Kanuni Campus
of Karadeniz Technical University were used as study material within the scope
of the study. Spectrometer device was used for photosynthetic pigment
determination and chlorophyll a, chlorophyll b, total chlorophyll and total
carotenoid amounts were determined. Measurements were carried out in June, July
and August. As a result of the analysis of variance (one-way ANOVA), it was
revealed that there were statistically significant differences at 99%
confidence level between the months in terms of all measured parameters. In
addition, it was determined that the amount of chlorophyll a, chlorophyll b and
total chlorophyll increased from June to August, while the amount of total
carotenoids decreased. While the lowest values for chlorophyll a (1.15 mg/g),
chlorophyll b (0.55 mg/g) and total chlorophyll (1.70 mg/g) amounts were
determined in June, the highest values were determined as 2.31 mg/g, 1.48 mg/g
and 3.79 mg/g in August, respectively. The highest total carotenoid amount was
0.24 mg/g in June and the lowest value was 0.08 mg/g in August. The summer
period averages of oriental sweetgum were determined as 1.89 mg/g for
chlorophyll a, 0.98 mg/g for chlorophyll b, 2.88 mg/g for total chlorophyll and
0.18 mg/g for total carotenoid. In the study, it was revealed that
photosynthetic pigment contents showed significant differences during the
summer period.