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    Determining nutrition status of mulberry orchards (Morus alba L.) in upper Çoruh valley
    (Centenary University, 2017) Karlidağ H.; Pehluvan M.; Turan M.
    The study was conducted to evaluate nutrition status in mulberries sampled from 16 orchards to represent the study area in Upper Çoruh Valley. Soil samples were taken from different depths of soil such as 0-30 cm, 30-60 cm and 60-90 cm. Mineral content of soil and leaf samples from mulberry orchard were analysed. Available soil minerals of the orchards were found to be adequate levels in the study area. Mineral content of leaf samples were determined between 25.75 and 58.48 mg kg-1 for manganese, 13.53 and 41.15 mg kg-1 for zinc, 6.55 and 15.22 mg kg-1 for copper, 87.21 and 152.49 mg kg-1 for iron, 0.18 and 0.46% for phosphorus, 2.54 and 5.25% for nitrogen, 0.40 and 0.77% for magnesium, 1.36 and 2.90% for calcium and 1.58% and 2.79% for potassium. As a result, there were no found mineral deficiency in soil and leaf samples of mulberry orchard grown dried consuming as well as prepared as local specialties such as pekmez, pestil in the study area. © 2017, Centenary University. All rights reserved.
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    Heavy metal levels of mulberry (Morus alba L.) grown at different distances from the roadsides
    (2012) Pehluvan M.; Karlidag H.; Turan M.
    The heavy metals pollution of mulberry cultivated soil, mulberry leaf and fruit, growing at different distances from the roadside were investigated in the Upper Coruh Valley of Turkey. The rate of heavy metals in soil, leaf and fruit were detected by Inductively Coupled Plasma Optical Emission Spectrophotometer (ICP-OES). All of the heavy metals (Zn, Mn, Cu, Co, Cr, Pb, Cd and Ni) were found in soil and parts of plant and their highest level at a distance of 20 m from the roadside. At a distance of 20 m from the roadside, the soil was found to be contaminated by Zn (330.7 mg kg-1), Cu (217.5 mg kg-1), Pb (500.2 mg kg-1) and Cd (4.24 mg kg-1) pollutants. The concentration of Pb in mulberry fruit was found to be more than the permissible limits at a 20 and 100 m distances from the roadside with its 0.467 and 0.419 mg kg-1 values, respectively. At all of distances, the concentration of Ni in fruit was found higher than the permissible limits. The results reflected a strong relationship between soil and fruits for contamination with some heavy metals.
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    Plant growth-promoting rhizobacteria mitigate deleterious effects of salt stress on strawberry plants (Fragaria × ananassa)
    (American Society for Horticultural Science, 2013) Karlidag H.; Yildirim E.; Turan M.; Pehluvan M.; Donmez F.
    The effect of selected plant growth-promoting rhizobacteria (PGPR) on the growth, chlorophyll content, nutrient element content, and yield of strawberry plants under natural field salinity conditions stress was investigated. Field experiments were conducted using a randomized complete block design with five PGPRs (Bacillus subtilis EY2, Bacillus atrophaeus EY6, Bacillus spharicus GC subgroup B EY30, Staphylococcus kloosii EY37, and Kocuria erythromyxa EY43) and a control (no PGPR) in 2009 and 2010. PGPR inoculations significantly increased the growth, chlorophyll content, nutrient element content, and yield of strawberry plants. PGPR treatments lowered electrolyte leakage of plants under saline conditions. The leaf relative water content (LRWC) of plants rose with bacterial inoculation. All nutrient element contents of leaves and roots investigated were significantly increased with PGPR inoculations with the exception of sodium (Na) and chlorine (Cl). The highest efficiency to alleviate salinity stress on the yield and nutrient uptake of strawberry plants was obtained from EY43 (228 g per plant) and EY37 (225 g per plant) treatment and the yield increasing ratio of plants was 48% for EY43 and 46% for EY 37 compared with the control treatment (154 g per plant). The highest nitrogen (N), potassium (K), phosphorus (P), calcium (Ca), magnesium (Mg), sulfur (S), manganese (Mn), copper (Cu), and iron (Fe) concentrations were obtained from EY43 and followed by E6, E37, and E30, and increasing ratio of leaves and root N, P, K, Ca, Mg, S, Mn, Cu, and Fe contents were 22% to 33%, 34% to 8.8%, 89% to 11%,11.0% to 7.2%, 5.1% to 6.2%, 97% to 65%, 120% to 140%, 300% to 15%, and 111% to 9.0%, respectively. The results of the study suggested that PGPR inoculations could alleviate the deleterious effects of salt stress conditions on the growth and yield of strawberry plants under salinity conditions.