Browsing by Author "Ciftci, Vahdettin"

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Changes of Micronutrients, Dry Weight and Plant Development in Canola (Brassica Napus L.) Cultivars Under Salt Stress
(Academic Journals, 2011) Tuncturk, Murat; Tuncturk, Ruveyde; Yildirim, Bunyamin; Ciftci, Vahdettin
This study was carried out to determine the effects of salt stress on the growth, dry weights and micronutrient contents of canola (Brassica napus L.) cultivars grown in greenhouse conditions. 12 canola cultivars (Marinca, Kosa, Spok, Semu DNK207 NA, Tower, Liraspa, Star, Tobin, Helios, Semu 209/81, Regent and Lirawell) were exposed to salinity treatments (150 mM NaCl and control). Shoot, leaf and root dry weights of all the cultivars at 45-day-old plants were determined. Micronutrient contents (Fe, Mn, Cu and Zn) of the leaves, stems and roots were also analyzed. Salinity stress negatively affected the canola cultivars and the extent of effects varied depending on the salt tolerance of the cultivars. Generally, salinity reduced the plant growth and dry weights. Fe, Mn, Cu and Zn concentrations were high in the roots when compared with those in the leaves and shoots in the salt applied samples. It was observed that, micronutrient contents showed some variation in the different plant parts of the canola cultivars as a result of salt applications to the growing media. Iron (Fe), manganese (Mn) and copper (Cu) content increased in all the plant parts with salt applications except for some cultivars. On the other hand, when mean data of the cultivars were considered, it could be said that zinc (Zn) content of the leaves was not significantly affected by the salt stress.
Determination of Some Seed Characteristics of False Flax (Camelina Sativa L. Crantz) Genotypes Grown Under Semi-Temperate Conditions
(Univ Philippines Los Banos, 2022) Subasi, Ilhan; Arslan, Yusuf; Eryigit, Tamer; Ciftci, Vahdettin; Camlica, Mahmut
Camelina is an alternative low-input oil plant grown in marginal areas in Turkey. This study aimed to determine some quality characteristics of 39 camellia genotypes in ecological conditions in Bolu, Turkey. The field experiments were carried out in an augmented design with randomized blocks. In this work, some important properties such as thousand seed weight, oil content, fatty acid composition, and protein ratio were investigated. Results showed that mean data for thousand seed weight, oil ratio, and protein ratio were 0.63 - 1.5 g, 26.69 - 39.17%, and 21.81 - 29.81%, respectively. Considering the oil content of the genotypes used in the study, the PI 650158 genotype had the highest oil ratio, while the PI 650164 genotype had the highest seed protein ratio. In conclusion, the PI 311735 and PI 650158 genotypes were found to be within acceptable limits in terms of both oil and protein ratios in places with semi-temperate conditions.
Effect of Salinity Stress on Plant Fresh Weight and Nutrient Composition of Some Canola (Brassica Napus L.) Cultivars
(Academic Journals, 2011) Tuncturk, Murat; Tuncturk, Ruveyde; Yildirim, Bunyamin; Ciftci, Vahdettin
Soil salinity is a major limitation to crop production in many areas of the world. A pot experiment was carried out with rapeseed cultivars in order to investigate the effects of salinity stress on plant development and nutrient composition. For the salinity studies, 150 mM NaCl concentration was applied to 12 rapseed cultivars (Marinca, Kosa, Spok, Semu DNK207 NA, Tower, Liraspa, Star, Tobin, Helios, Semu 209/81, Regent and Lirawell) under the greenhouse conditions. All the cultivars were harvested after 45 days from planting. Green plants parts were weighted. Harvested rapeseed plants were separated into root, shoot and leaf parts for nutrient (K+, Na+, K+/Na+, Ca2+ and Cl-) analysis. As shown in this study, salinity stress affected negatively all the canola cultivars investigated. Generally, salinity reduced the green parts' weight. K+, Ca2+ and K+/Na+ contents in plants decreased by salt stress, but Na+ and Cl- content in the roots, shoots and leaves of all the cultivars significantly increased. In the salt treatment, the K+ and Ca2+ concentrations were the highest in the leaf samples as compared to root and shoot samples. Furthermore, the highest concentration of Na+ and Cl- was observed in the leaf and shoot. Under salinity, Regent and Lirawell cultivars retained the highest K+ and Ca2+ content in leaves, with respect to the K+ content. The effect of NaCl treatment on the canola cultivars' growth was not considerable.
Effects of Different Arbuscular Mycorrhizal Fungi (Amf) Species on Some Bean (Phaseolus Vulgaris L.) Cultivars Grown in Salty Conditions
(Academic Journals, 2010) Ciftci, Vahdettin; Turkmen, Onder; Erdinc, Ceknas; Sensoy, Suat
This study was carried out to determine the effects of three different Arbuscular Mycorrhizal Fungi (AMF) species (Glomus mosseae, Glomus intraradices and Glomus fasciculatum) on the growth and nutrient contents of four bean cultivars (Onceler, Seker, Terzibaba and Sehirali) grown under salt stress. The constant amount of NaCl (50 ppm) was added the autoclaved growth medium containing 1:1:1: ratios of soil, sand, and manure. The five gram (25 spores g(-1)) of inoculum was placed in the seedling growth medium before the seeds were sown. At the end of the study, some nutrients such as N, P, K, Ca, Mg, Fe, Cu, Mn, and Zn and plant growth parameters such as shoot height, stem diameter, root length, leaf number, leaf area, and dry and fresh weights of shoots and roots were investigated. Moreover, the plant colonization rates of AMF species were determined. The AMF species had positive effects on the plant growth and nutrient intake. Among the bean cultivars, Onceler and Terzibaba, and among the AMF species, G. mosseae had the best results for plant growth.
Relationships Among Yield Components and Selection Criteria for Seed Yield Improvement in Bush Bean (Phaseolus Vulgaris L.)
(Ankara Univ, Fac Agr, 2012) Kulaz, Haluk; Ciftci, Vahdettin
correlation and path coefficient analysis. The experiment was carried out in irrigated conditions during 2004-2005 and 2005-2006 at the East of Turkey (Van-Gevas ecological conditions). In this study, 12 dry bean cultivars were used. The experiment was designed in a complete randomized block design with three replications. Positively significant relationships were found among seed yield and biological yield per unit and seed yield per plant, number of branches per plant, number of pods per plant. According to path coefficient analysis, there were strong direct effects of the biological yield, 1000-seed weight, seed yield per plant, plant height and number of seeds per plant respectively.
Relationships Between Yield and Some Yield Components in Rapeseed (Brassica Napus Ssp. Oleifera L.) Cultivars by Using Correlation and Path Analysis
(Pakistan Botanical Soc, 2007) Tuncturk, Murat; Ciftci, Vahdettin; FTCIdot,
This research was carried out during 2000, 2001 and 2002 in Van, Turkey to investigate the relationships between yield and some yield components of 16 oilseed rape cultivars (Brassica napus ssp. oleifera L.) by using correlation and path coefficient analysis. The results revealed that there were statistically positive correlation between seed yield with the number of branch (r=0.219 **), with number of pods per plant (r=0.424 **), with the number of seeds per pod (r= 0.247 **), and with 1000-seed weight (r= 0.161*). Number of pods per plant, 1000-seed weight and number of seeds per pod have-shown a considerable direct positive effect on seed yield. Positive direct effect of number of pods per plant, number of seeds per pod and number of branches per plant was associated with significant and positive correlation with seed yield. These yield components suggested good selection criteria to improve seed yield of rapeseed breeding.
Variation of Salinity Tolerance in Bean Genotypes
(Academic Journals, 2011) Ciftci, Vahdettin; Turkmen, Onder; Dogan, Yusuf; Erdinc, Ceknas; Sensoy, Suat
Bean is among the very sensitive plant species to soil salinity. This study was carried out using the 55 bean genotypes collected from Gevas-Van region in Turkey to determine their salinity tolerance. This study aimed to investigate the salt tolerance capacity of this local bean population. 50 mM NaCl was applied to the bean seedlings, and the measurements and observations were done 20 days after the salt application, when the differences among the genotypes appeared. Number of leaves, seedling heights, and root and shoot weights and some nutrients (phosphorous, potassium, iron, calcium, manganese, magnesium, copper, zinc, and sodium) of the seedlings were determined. The wide variation at salt stress tolerance was observed in this population. The overall performances of local genotypes were better than the tried commercial cultivars.