Semsettin Kulac

• Düzce University

It is known that global climate change is an irreversible process and will directly or indirectly affect all living things in the world. It is estimated that the most devastating effects of the process will be seen on plants and, especially, woody species that do not have a long life cycle. Therefore, being prepared for the process, determining the...

Lead (Pb), one of the most lethal heavy metals (priority contaminant) in environmental and human health, spreads to the air as a metal or compound and has noxious properties. Therefore, tracking and diminishing Pb pollution are urgent and priority research topics. This study aims to contribute to the determination of suitable biomonitor species tha...

Cadmium (Cd) is non-essential heavy metal that negatively affects plant metabolism. Nitric oxide (NO) is an increasingly important molecule for plant metabolism that makes signaling. In this study, it was aimed to investigate the alleviating effect of sodium nitroprusside (SNP) application as NO donor in white poplar (Populus alba) under Cd stress...

Düzce University Ornamental and Medicinal Plants Botanical Garden is a living nature museum built on 43 main plots on a total area of 51.45 ha, consisting of terraced gardens, rock gardens, waterfalls, streams, streams, pond ecological systems, amphitheater, nature and botanical museum education systems, collections and garden exhibitions where liv...

Düzce İli zengin florası ile bir biyoçeşitlilik merkezi olmasının yanında, sahip olduğu doğal güzellikleri ile doğa turizmi açısından da Batı Karadeniz Bölgesinin önemli merkezlerinden birisidir. Botanik turizmi açısından Düzce İli’nin potansiyeli değerlendirilirken, düzenlenecek ekolojik, botanik ve doğa turizmi aktiviteleri, biyolojik zenginliğin...

Cadmium (Cd) is a highly toxic metallic contaminant that negatively affects plant meTabolism and causes reductions in productivity. Nitric oxide (NO) is a signaling molecule that regulates various physiological processes and is involved in response to biotic/abiotic stresses. This work investigated the effects of exogenous sodium nitroprusside (SNP...

Nickel (Ni) is an essential nutrient for plants and it has been identified as a component of a number of enzymes such as ureases. In this study, we have studied the long-term effects of nickel toxicity on black poplar (Populus nigra). The black poplars were exposed to Ni as NiSO4.6H2O (200, 400, or 800 µM) for 28 days by using complete randomized d...

The eastern-Mediterranean Abies taxa, which include both widely distributed species and taxa with minuscule ranges, represent a good model to study the impacts of range size and fragmentation on the levels of genetic diversity and differentiation. To assess the patterns of genetic diversity and phylogenetic relationships among eastern-Mediterranean...

At the beginning of the tree breeding programs, it is started over investigations of genetic variations. Thanks to the genetic variation investigations it is proved how does the scape of variations among populations and trees in populations change according to the variations like altitude, distance from sea and rain. Oriental beech is a very import...

Genetic diversity is a crucial component for plant survivability and fitness in terms of adaptation, genetic stability and variability. In this study, a total of 160 genotypes were investigated using 12 random amplified polymorphic DNA (RAPD) primers to understand the genetic structure and diversity of nine naturally distributed Ostrya carpinifolia...

Oriental beech is a very important tree species in the forestry. It is aimed in this study to determine variations on the seedling which are grown from seeds picked from 11 different Oriental beech populations (Sinop-Merkez, Sinop-Ayancık, Samsun-Kunduz, Samsun-Karapınar, Karabük-Yenice, Düzce-Çiçekli, Trabzon-Maçka, Trabzon-Çaykara, Giresun-Kulakk...

Scots pine (Pinus sylvestris) has a large natural distribution throughout the world, including semi-arid areas of Turkey, where it is being used for afforestation. Determining the drought resistance of Scots pine provenances can increase the success of afforestation efforts in semi-arid regions. In the first stage of this study, water-stress treatm...

In this study, genetic diversity analysis of silver lime genotypes from Duzce city ecosystem were performed using RAPD primers.

Oriental Hornbeam (Carpinus orientalis Miller) is one of the two endemic Carpinus species in Turkey. In order to determine the changes in morphological characteristics depending on altitude seeds from 45 hornbeam trees in Maçka, Trabzon were collected. Morphological characteristics, such as seed length, width and largeness, 1000 seed weight and see...

Four-year-old seedlings of Abies fraseri [(Pursh) Poir] (fraser fir) were grown in semicontrolled conditions in hoop houses with five watering regimes (0.00, 0.62, 1.25, 2.50, and 3.70 cm/week) with the goal of determining the seasonal variation in the physiological response to drought stress. Drought stress was monitored by measuring predawn (Ψpd)...

Plants have the ability to uptake and utilize amino acids as a primary nitrogen source in forest and agricultural ecosystems. This process has been reported in the arctic, boreal and temperate forests, and in controlled environments where plants are raised in containers. We report on a two-year study that aimed to understand the nutrient use physio...

Seedlings of Fraxinus angustifolia Vahl., Ulmus laevis Pall. and U. minor Mill. were grown in nursery for this study. The one-year old bareroot planting stocks so produced were out-planted on the bottomland site with heavy clay soils and 360 seedlings per species was assessed two years after planting for diameter, height and survival. Significant d...