DSpace Arşivi :: by Yazar "Serce, Sedat" değerine göre listeleniyor

Yazar "Serce, Sedat" seçeneğine göre listele

Listeleniyor 1 - 20 / 31

Antioxidant activities and fatty acid composition of wild grown myrtle (Myrtus communis L.) fruits
(Pharmacognosy Network Worldwide, 2010) Serce, Sedat; Ercisli, Sezai; Sengul, Memnune; Gunduz, Kazim; Orhan, Emine
The fruits of eight myrtles, Myrtus communis L. accessions from the Mediterranean region of Turkey were evaluated for their antioxidant activities and fatty acid contents. The antioxidant activities of the fruit extracts were determined by using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and beta-carotene-linoleic acid assays. The fatty acid contents of fruits were determined by using gas chromatography. The methanol extracts of fruits exhibited a high level of free radical scavenging activity. There was a wide range (74.51-91.65%) of antioxidant activity among the accessions in the beta-carotene-linoleic acid assay. The amount of total phenolics (TP) was determined to be between 44.41-74.44 mu g Gallic acid equivalent (GAE)/mg, on a dry weight basis. Oleic acid was the dominant fatty acid (67.07%), followed by palmitic (10.24%), and stearic acid (8.19%), respectively. These results suggest the future utilization of myrtle fruit extracts as food additives or in chemoprevention studies.
ANTIOXIDANT, PHYSICAL AND CHEMICAL CHARACTERISTICS OF CORNELIAN CHERRY FRUITS (Cornus mas L.) AT DIFFERENT STAGES OF RIPENESS
(Wydawnictwo Akad Rolniczej W Lublinie, 2013) Gunduz, Kazim; Saracoglu, Onur; Ozgen, Mustafa; Serce, Sedat
There has been growing interest for less utilized fruit species lately. Cornelian cherry is one of these species with significant antioxidant characteristics. In this study, several, chemical properties and antioxidant characteristics of cornelian cherry fruits at four ripeness stages were evaluated. The stages were light yellow, blush, light red and dark red. Several fruit characteristics (fruit width, length, weight), total soluble solids (TSS), total titratable acidity (TA), sugar/acid ratio (TSS/TA), pH, fruit external color, total phenolic compounds (TPC), total antioxidant capacity (AOC) by trolox equivalent antioxidant capacity (TEAC), total monomeric anthocyanins (TMA) and tannins were evaluated. The stages were found to be significantly different for all factors evaluated. There was an overall increase in fruit width, length, weight, TSS, and SSC/TA over time, while TA averages decreased as the fruit matured. Fruit color progressively turned to dark red as anthocyanin accumulates. TPC and TEAC averages were similar at light yellow (8033 mu g gallic acid equivalent GAE . g(-1) fresh weight (fw) and 55.0 mu mol trolox equivalent (TE) . g(-1) fw) and reduced at the dark red stages (4162 mu g GAE . g(-1) fw and 7.8 mu mol TE . g(-1) fw). Tannin content decreased from 0.45 to 0.19% from light yellow to dark red stages.
Antioxidant, physical and chemical characteristics of cornelian cherry fruits (Cornus mas L.) at different stages of ripeness
(2013) Gunduz, Kazim; Saracoglu, Onur; Özgen, Mustafa; Serce, Sedat
There has been growing interest for less utilized fruit species lately. Cornelian cherry is one of these species with significant antioxidant characteristics. In this study, several chemical properties and antioxidant characteristics of cornelian cherry fruits at four ripeness stages were evaluated. The stages were light yellow, blush, light red and dark red. Several fruit characteristics (fruit width, length, weight), total soluble solids (TSS), total titratable acidity (TA), sugar/acid ratio (TSS/TA), pH, fruit external color, total phenolic compounds (TPC), total antioxidant capacity (AOC) by trolox equivalent antioxidant capacity (TEAC), total monomeric anthocyanins (TMA) and tannins were evaluated. The stages were found to be significantly different for all factors evaluated. There was an overall increase in fruit width, length, weight, TSS, and SSC/TA over time, while TA averages decreased as the fruit matured. Fruit color progressively turned to dark red as anthocyanin accumulates. TPC and TEAC averages were similar at light yellow (8033 ?g gallic acid equivalent GAE · g-1 fresh weight (fw) and 55.0 ?mol trolox equivalent (TE) · g-1 fw) and reduced at the dark red stages (4162 ?g GAE · g-1 fw and 7.8 ?mol TE · g-1 fw). Tannin content decreased from 0.45 to 0.19% from light yellow to dark red stages.
Challenges faced by day-neutral strawberry breeders in the continental climates of the eastern United States and Canada
(Amer Soc Horticultural Science, 2008) Hancock, James; Weebadde, Cholani; Serce, Sedat
[Abstract Not Available]
Chemical and antioxidant properties of pomegranate cultivars grown in the Mediterranean region of Turkey
(Elsevier Sci Ltd, 2008) Ozgen, Mustafa; Durgac, Cokun; Serce, Sedat; Kaya, Cemal
Arils from six pomegranate (Punica granatum L.) cultivars obtained from various sites from the Mediterranean region of Turkey were evaluated for their chemical and antioxidant properties. These properties included total phenolics (TP), total monomeric anthocyanins (TMA), soluble solids (TSS), titratable acidity (TA), individual sugars and organic acids. Antioxidant capacities of arils were determined by both the ferric reducing antioxidant power (FRAP) and trolox equivalent antioxidant capacity (TEAC) assays. The antioxidant capacities averaged 5.60 and 7.35 mmol TE/I by the TEAC and FRAP methods. Variability among cultivars was greatest for TMA content (CV 132%): individuals ranged from 6.1 to 219 mg cy3-Gluc 1(-1). TP means averaged 1507 mg GAE/l Levels of FRAP, TEAC, TP, and TMA were strongly correlated (r = 0.82-0.96). The major sugars were fructose (6.4 g/100 ml) and glucose (6.8 g/100 ml), the major acids were citric (1.78 g/100 ml) and malic (0.12 g/100 ml). (c) 2008 Elsevier Ltd. All rights reserved.
Chemical composition, antioxidant activities and total phenolic content of Arbutus andrachne L. (Fam. Ericaceae) (the Greek strawberry tree) fruits from Turkey
(Academic Press Inc Elsevier Science, 2010) Serce, Sedat; Ozgen, Mustafa; Torun, Ayfer Alkan; Ercisli, Sezai
Arbutus andrachne L and A. unedo L are two members of the Ericaceae family. The species are distributed in coastal parts of Anatolia and have edible fruits. We determined several characteristics of eight A. andrachne accessions collected from different parts of the Mediterranean regions of Anatolia. A. unedo is also represented with a sample. Notable differences were found among A. andrachne accessions. On average, the fruit width and length were 12.3 and 10.8 mm, respectively. All of the element concentrations that were tested varied considerably. The average of the total organic acids was 0.47 g/100 g fruit. Among the organic acids measured, malic acid had the highest content (0.34 g/100 g fruit) followed by ascorbic (0.10 g/100 g fruit) and citric acids (0.03 g/100 g fruit). The average for total sugars of the A. andrachne accessions was 16.38 g/100 g fruit. Fructose was the main sugar (average of 9.75 g/100 g fruit) followed by glucose (5.33 g/100 g fruit) and sucrose (1.19 g/100 g fruit). Among the A. andrachne accessions tested, the total phenolics ranged from 2422 to 4102 mu g gallic acid/g fresh weight (fw) with an average of 3343 mu g gallic acid equiv. g/fw. Antioxidant activities, determined by TEAC (Trolox equivalent antioxidant capacity) and FRAP (Ferric reducing ability of plasma), reached up to 36.1 and 29.5 mu mol Trolox equiv. (TE) g/fresh weight, respectively. It can thus be concluded that A. andrachne is a good source of phenols and antioxidants. (C) 2010 Elsevier Inc. All rights reserved.
Chemical composition, antioxidant activities and total phenolic content of Arbutus andrachne L. (Fam. Ericaceae) (the Greek strawberry tree) fruits from Turkey (vol 23, pg 619, 2010)
(Academic Press Inc Elsevier Science, 2012) Serce, Sedat; Ozgen, Mustafa; Torun, Ayfer Alkan; Ercisli, Sezai
[Abstract Not Available]
Comparison of several plant nutrient elements in conventionally and organically grown citrus orchards
(Academic Journals, 2009) Demirkeser, Turan Hakan; Kaplankiran, Mustafa; Toplu, Celil; Agca, Nejat; Yildiz, Ercan; Serce, Sedat
Organic citrus production has been increasing recently in Turkey. In this study, we compared several nutri-elements concentrations of organically (ORG) and conventionally (CON) grown citrus orchards in the Mediterranean region of Turkey. The samples included Satsuma mandarins (Citrus unshiu L.) and Washington navel and Valencia oranges (Citrus sinensis (L.) Osbeck), which were grafted on sour orange (Citrus aurantium L.). In 1996, 58 citrus orchards were sampled and 48 of them used for analyses. Three years after the first sampling, some orchards switched from CON to ORG production. Sampling was repeated in 2007 and included 31 samples from CON and 30 samples from orchards that switched to ORG after the 1996 samples were taken. Concentrations of N, P, K, Ca, Mg, Na, B, Cu, Fe, Mn and Zn were determined using the samples from 1996; with the exception of B, no significant differences were observed. Analysis of the samples from 2007 indicated statistically significant differences between the two groups for concentrations of N, K, Mg, B and Mn. The means of both samples were subjected to principle component analysis (PCA); the results indicated that, after several years of ORG culture, the two groups were clearly separated. The variables highly correlated with PC1 were Na, Fe and Ca, while P, K, Mn and Mg were correlated by PC2. B, Fe and Zn correlated by PC3. Several trace elements (Pb, Cu, Fe, Mn, Ni and Zn) from five randomly chosen soil samples from both CON and ORG growing groups were determined, and the results indicated that the mean concentrations for the two groups were similar for most of the elements (Pb, Cu, Fe and Ni). Our results shed light on the optimization of plant nutrient programs in organic citrus production.
Determination of factors affecting sensitivity of two strawberry species to iron deficiency
(WFL Publisher Ltd., 2013) Torun, Ayfer A.; Serce, Sedat; Kacar, Yildiz A.; Erdem, Nazife; Erdem, Halil; Bicen, Belgin; Tolay, Inci
Iron (Fe) deficiency is an important nutritional problem occurring in plants and humans in the world. It is also common nutritional problem in Turkey and the strawberry is known as a sensitive species to Fe deficiency which results in significant yield and quality losses. The objective of this study was to determine the factors affecting the sensitivity of strawberry to Fe deficiency using BSP 14 (Fragaria chiloensis L.) and LH 30-4 (F. virginiana Miller) genotypes of the cultivated strawberry, F. ×ananassa Duch in hydroponic culture. In the study, the genotypes LH 30-4 and BSP 14 were selected as plant material. F. chiloensis and F. virginiana were determined as tolerant and sensitive to Fe deficiency in a previous screening study. The plants were grown in Fe (-) (0 ?mol Fe) and Fe (+) (100 ?mol Fe) nutrient culture and several variables were measured. The variables evaluated included symptom severity, SPAD values, shoot and root weight, Fe-reductase activity, shoot and root Fe content, Fe concentration and the pH value of the media. The results indicated that the most important factors affecting the Fe deficiency in strawberry species were the Fe uptake and the Fereductase activity.
Determining total phenolic content and total antioxidant capacity of loquat cultivars grown in Hatay
(Wolters Kluwer Medknow Publications, 2010) Polat, A. Aytekin; Caliskan, Oguzhan; Serce, Sedat; Saracoglu, Onur; Kaya, Cemal; Ozgen, Mustafa
Several fruit characteristics of five loquat (Eriobotrya japonica (Thunb.) Lindl.) cultivars/selections grown in Dortyol, Hatay, Turkey were investigated in 2008. The cultivars/selections included 'Baduna 5', Guzelyurt 1, 'Hafif Cukurgobek', 'Ottaviani,' and Type 1. The characteristics evaluated included fruit weight, width, length, seed number and weight, flesh/seed ratio, total soluble solids (TSS), pH, acidity, total phenolic (TP) content, and total antioxidant capacity (TAC), determined by the ferric reducing antioxidant power ( FRAP) assay. The analyses were conducted by three replicates, with 30 fruits in each replicate. The results indicated that there were significant differences among the cultivars, for all the traits tested. For example, 'Hafif Cukurgobek' and 'Ottaviani' had smaller fruits than others, although 'Hafif Cukurgobek' had heavier seeds. The flesh/seed ratio was the highest in Type 1, while 'Hafif Cukurgobek' had the highest pH and high soluble solids. 'Baduna 5' and 'Hafif Cukurgobek' had the highest acidity. The TP ranged from 129 ('Baduna 5') to 578 ('Hafif Cukurgobek') mg gallic acid equivalent (GAE)/kg fresh fruit (fw). 'Hafif Cukurgobek' also had the highest FRAP mean (12.1 mmol Trolox Equivalent (TE)/kg fw). The results suggest that loquat cultivars have a variable range of TP content and a relatively high total antioxidant capacity, which is crucial for human health.
Distribution of heavy metals in plant and media samples from a volcanic region in Hatay, Turkey
(Parlar Scientific Publications (P S P), 2008) Demirkeser, Turan Hakan; Ozgen, Senay; Torun, Ayfer Alkan; Erdem, Halil; Gunduz, Kazim; Durgac, Coskun; Serce, Sedat
There is a volcanic area in Hatay, Turkey with currently limited agricultural activities; however, its ecological properties make it a plausible choice for protected fruit and vegetable production. The different soil properties of the area might be useful for plant growing in the future. In this study, we determined selected plant nutrients and heavy metal concentrations of eight soil and rock types from the realon. along with those of ten different species of fruits and vegetables representing the region's flora and agricultural activities. We found significant differences in all the micronutrients and heavy metal concentrations among the media samples. Overall, the highest concentrations were recovered from growing media. For example, one medium had the highest concentrations of Cu, Cd and Zn. Similarly, the plant samples had significant differences in micronutrients and heavy metal concentrations. Almond leaf samples were in the highest mean groups for Mg, Na, Fe, Al and Cr, while cucumber had the highest values for Zn and Ni. The highest Pb levels were recovered from uncultivated olive. Comparisons of our results to those of others in the related literature indicated that only two of our results were above the accepted levels: the almond Fe and holy oak B concentrations. In conclusion, our samples from the volcanic area in Hatay were not dangerously contaminated with heavy metals, and utilization of this area for agricultural purposes poses no apparent threat.
Effect of cultivar, controlled atmosphere storage, and fruit ripeness on the long-term storage of highbush blueberries
(Amer Soc Horticultural Science, 2008) Hancock, Jim; Callow, Pete; Serce, Sedat; Hanson, Eric; Beaudry, Randy
Controlled-atmosphere storage had little effect on the quality of fruit of eight cultivars: held under 2 kPa oxygen (O-2) and 8 kPa carbon dioxide (CO2) versus ambient air. 'Elliott' fruit harvested from bushes with only 30% ripe fruit had significantly better storage quality than fruit picked later; however, there was no significant difference in the storage life of fruit that was stored fully blue versus partially green. Fruit from the first harvest of four cultivars had superior storage quality to that of the second. In one comparison of the long-term storability of nine cultivars, 'Bluegold', 'Brigitta', and 'Legacy' performed the best, storing for 4 to 7 weeks. In another postharvest trial of 17 cultivars, 'Brigitta' stored the longest (8 weeks) followed by 'Aurora' and 'Draper' (7 weeks). The most resistant genotypes to Alternaria spp. were 'Brigitta', 'Aurora', 'Elliott', and 'Draper', whereas the most resistant genotypes to Colletotrichum spp. were 'Elliott', 'Brigitta', 'Toro', 'Draper', and 'Bluejay'.
The effect of mycorrhiza in nutrient uptake and biomass of cherry rootstocks during acclimatization
(Ars Docendi, 2010) Aka-Kacar, Yildiz; Akpinar, Cagdas; Agar, Aslihan; Yalcin-Mendi, Yesim; Serce, Sedat; Ortas, Ibrahim
The effect of arbuscular mycorrhizal fungi (AMF) on growth and nutrient uptake of micropropagated cherry rootstocks was evaluated during acclimatization and plant establishment. Two commonly used cherry rootstocks, 'Edabriz' and 'Gisela 5', were propagated through tissue culture and grown in a greenhouse for 16 weeks. Plantlets were inoculated with Glomus Glomus caledonium, Glomus etunicatum. Glomus intraradices, Glomus mosseae, cocktail (mixture of these species) and indigenous mycorrhiza into three different substrate mixtures. All micropropagated cherry plantlets survived transplanting. After 16 weeks. mycorrhizal plantlets had greater nutrient uptake than non-mycorrhizal plantlets. Roots of inoculated cherry plantlets were heavily colonized with AMF. These results indicated that mycorrhizal inoculation during transplantation from in vitro to ex vitro culture can induce growth responses. The experiments also showed that the mycorrhizal cherry rootstocks were healthier and had higher Zn and P contents when compared to controls for both rootstocks. G. mosseae was one of the most efficient AMF species. Indigenous AMF isolated from Cukurova region also significantly increased the plant growth and nutrient uptake. 'Gisela 5' rootstocks had significantly higher P and Zn contents than 'Edabriz'. Taken together, our results indicate that AMF inoculations enhance growth and development of micropropagated plants which would be beneficial to improve cherry rootstock production.
Effect of scale color on the antioxidant capacity of onions
(Elsevier Science Bv, 2010) Gokce, Ali Fuat; Kaya, Cemal; Serce, Sedat; Ozgen, Mustafa
The bulb onion (Allium cepa L.) has been cultivated for thousands of years and used as an important component of human diet. Recent studies suggest that onions can be used to cure, reduce, or prevent some of the health problems such as cancer, cardiovascular diseases, antidiabetic, asthma, antibiosis, and prebiotic effects due to its high antioxidant effect. In this Study, we determined the antioxidant capacities of a wide range of onion cultivars: nine commercial cultivars and five advance selections differing in color. The variables tested include bulb size, scale color,, total phenolic (TP), total antioxidant activity determined by both Ferric reducing ability of plasma (FRAP) and Trolox equivalent antioxidant capacity (TEAC). We found that yellow onion had the greatest TP content (3.7 mg GAE/g dw); and, the red group had higher TP mean than the white group (2.2 mg GAE/g dw vs. 1.1 mg GAE/g dw). For the antioxidant capacity measurements, the red group had the greatest means by both methods (15.4 mu mol TE/g dw and 9.3 mu mol TE/g dw for TEAC and FRAP). Yellow onions had higher TEAC (14.7 mu mol TE/g dw vs. 8.7 mu mol TE/g dw) and FRAP values (9.8 mu mol TE/g dw vs. 5.6 mu mol TE/g dw) than white onions. Among the cultivars tested great differences of TP, TEAC and FRAP was observed. The TP content of Me-Tan 88 (8.3 mg GAE/g dw) was two times higher than the yellow group. Yellow color Dayton had the greatest TEAC (20.5 mu mol TE/g dw) and FRAP (123 mu mol TE/g dw) means followed by yellow color Me-Tan 88 (19.4 and 11.4 mu mol TE/g dw). The two antioxidant measurements were found to be highly correlated (0.99) where absolute values of FRAP were about 40% less than those of TEAC. The values of TEAC and FRAP were significantly correlated by TP with similar rs (0.74 and 0.73, respectively). TP, TEAC and FRAP were significantly and positively correlated to Soluble solids (0.41, 0.43, and 0.40, respectively). Our results suggested that the red onions had higher antioxidant activities than yellow and white onions although yellow onions had the richest phenolic contents. (C) 2009 Elsevier B.V. All rights reserved.
The Effects of Different Hormones on Regeneration of Gazania (Gazania rigens)
(Ars Docendi, 2009) Yalcin-Mendi, Yesim; Unek, Ceren; Eldogan, Selay; Aka-Kacar, Yildiz; Serce, Sedat; Curuk, Pembe; Kocaman, Esra
Recent advances in the modern techniques of propagation could help growers to meet the demand of the ornamental industry. New ornamental plant varieties are being created by breeders in response to consumer demand for new products. In this study, different concentrations of BA (0.0, 0.2, 0.5, 1.0 mg/l) and IAA (0.0, 0.5, 1.0 mg/l) were investigated to optimize regeneration of Gazania rigens. The best callus formation was found from the media containing 0.2 mg/l BA-1.0 mg/l IAA (100%), 0.5 mg/l BA-1.0 mg/l IAA (98%), 0.5 mg/l BA-0.5 mg/l IAA (97%), 1 mg/l BA -1 mg/l IAA (97%), 1.0 mg/l BA-0.5 mg/l IAA (98%). 0.5 mg/l BA (97%). The most promising regeneration and growth were obtained from the media with 0.2 mg/l BA-1.0 mg/l IAA (30%). 1.0 mg/l BA-0.5 mg/l IAA (22%) and 1.0 mg/l BA (18%). The regenerated plantlets were rooted on the media containing 0.5 and 1.0 mg/l IAA. The best rooting percentage was observed on the media containing 1.0 mg/l IAA (75%).
Effects of Short Day Conditioning, Chilling and GA3 Treatments to Yield and Fruit Quality in Strawberry Plug Transplants Aiming Early Fruit Production
(Univ Agr Sci & Veterinary Med Cluj-Napoca, 2013) Ozdemir, Emine; Kaska, Nurettin; Gunduz, Kazim; Serce, Sedat
In this study, we tested the effects of short day (SD), chilling (Ch) and gibberalic acid (GA(3)) treatments on the yield and fruit characteristics of 'Camarosa' and 'Sweet Charlie' plug plants under a freeze-protected greenhouse in Mediterranean conditions for two growing seasons in 2006-2007 and 2007-2008. The treatments included control (ambient day length and temperature); SD (8 h days) and ambient temperature, SD + Chilling (Ch) (18/12 degrees C day/night temperatures); SD + Ch (10 degrees C); SD + Ch (2 degrees C); and, GA(3) (10 ppm applied to the plants in November). In each growing season, the plug plants were planted in mid-August using bag culture. Yield, fruit weight, firmness, total soluble solids (SS), titratable acidity (TA), and SS/TA ratio were investigated. Considerable amounts of early yield (March and April) were recovered from 'Sweet Charlie'; 116 and 72 g/plant in the first and second growing seasons, respectively. 'Sweet Charlie' also had consistently higher total yield than 'Camarosa' (457 vs. 400 g/plant in the 2006-2007 season and 446 vs. 406 g/plant in the 2007-2008 season). Treatment did not have a consistent effect on the fruit quality traits measured. The results indicated that although SD conditioning, Ch and GA(3) treatments may have an effect on the total and early yield of strawberries, these effects may be cultivar-dependent and further regulated by environmental factors. Therefore, we propose that low-chilling varieties be utilized for early fruit production that can initiate flower buds in warmer, longer days.
Evaluation of American (Sambucus canadensis) and European (S. nigra) elderberry genotypes grown in diverse environments and implications for cultivar development
(Amer Soc Horticultural Science, 2008) Finn, Chad E.; Thomas, Andrew L.; Byers, Patrick L.; Serce, Sedat
American (Sambucus canadensis L.) elderberry genotypes were evaluated at multiple locations, whereas European (S. nigra L.) elderberry genotypes were evaluated at a single location to assess genotypic differences and, for genotypes evaluated at multiple locations, to determine genotype x environment interactions (G x E). Seventeen S. canadensis genotypes were planted in replicated trials at Missouri State University (Mountain Grove, MO) and at the University of Missouri (Mt. Vernon, MO) or at the U.S. Department of Agriculture-Agricultural Research Service in Oregon (Corvallis). 'Johns', 'Netzer', 'Adams II', and 'Gordon B' were in common at all locations. In addition, three genotypes of S. nigra, which are not winter-hardy in Missouri, were planted in Oregon. All plants were established in 2003 and evaluated in 2004, 2005, and, for some traits, in 2006. Plants were evaluated for phenology (e.g., dates of budbreak, first flowering, full flowering, and first ripening), vegetative growth (e.g., number of shoots and plant height), yield components (e.g., total yield, number of cymes, cyme weight, and berry weight), and for pest incidence (e.g., eriophyid mites). For the genotypes in common to all locations, there were significant differences resulting from genotype, location, year, and the interactions for various traits. Although the trend was for Corvallis to have the highest and Mt. Vernon the lowest yield, there was no significant location effect. The significant genotype x environment interaction appeared to be primarily the result of the differential performance of 'Johns', which was generally high-yielding in Corvallis and low-yielding at both Missouri locations. The significant G x E suggests that as the Missouri institutions develop new cultivars, it will be important to test them individually at other locations and not rely on their relative performance compared with standards in Missouri. For the genotypes in common to the two Missouri sites, there was significant variation for many traits. Although there were no differences among genotypes for yield across the locations, there was a significant G x E. Although there were some small changes in performance among the sites for yield, the most dramatic changes were for 'Wyldewood 1' that was the second highest yielding genotype at Mountain Grove and the second worst at Mt. Vernon. Plant growth in Oregon was 40% and 60% greater than at Mountain Grove and Mt. Vernon, respectively, when the plants were first measured. In Oregon, the two Sambucus species behaved differently. Phenologically, although the S. nigra genotypes flowered approximate to 3 weeks earlier than the S. canadensis genotypes, they ripened at the same time, thereby shortening their exposure to potential biotic and abiotic stress. 'Johns', 'York', 'Golden', and 'Gordon B' were the highest yielding S. canadensis genotypes and 'Korsor' the highest of the S. nigra genotypes. Although 'Korsor' is considered high-yielding in Denmark, it did not yield as well as the highest yielding S. canadensis cultivars.
In vitro screening of octoploid Fragaria chiloensis and ragaria virginiana genotypes against iron deficiency
(Tubitak Scientific & Technological Research Council Turkey, 2014) Torun, Ayfer Alkan; Kacar, Yildiz Aka; Bicen, Belgin; Erdem, Nazife; Serce, Sedat
Iron (Fe) deficiency is one of the common problems in strawberry (Fragaria x ananassa Duch.) growing regions. In vitro screening enables researchers to evaluate genotype performance under several concentrations of Fe in a relatively fast and economical way. Therefore, we evaluated the responses of several genotypes belonging to octoploid Fragaria chiloensis (L.) Mill. and Fragaria virginiana Mill. (the progenitors of cultivated strawberry) against Fe treatments under in vitro conditions. In the first experiment, HM 1, Pigeon Point, CFRA1267 (F. chiloensis subsp. pacifica), and CA1541 (F. chiloensis subsp. chiloensis) were tested with various Fe concentrations (0%, 10%, 15%, 25%, 50%, 65%, 80%, and 100%, where 100% = 27.8 mg L-1 FeSO4.7H(2)O). Different Fe concentration treatments resulted in differences in plant height, fresh and dry weight, as well as macro- and microelement concentrations among the tested genotypes. In the second experiment, 16 octoploid Fragaria genotypes were tested with 4 Fe concentration treatments (0%, 10%, 50%, and 100%, where 100% = 27.8 mg L-1 FeSO4.7H(2)O). Iron concentration and genotype interactions were significant for all studied characteristics except sulfur (S) and manganese (Mn) concentrations, and the 16 genotypes responded differentially to varying Fe treatments. The results of these experiments indicated that F. chiloensis and F. virginiana genotypes exhibited considerable variation under different Fe treatments in vitro, and the more resistant genotypes could be utilized to develop new strawberry cultivars with tolerance to low Fe concentrations.
Molecular characterization of mulberry accessions in turkey by AFLP markers
(Amer Soc Horticultural Science, 2008) Kafkas, Salih; Ozgen, Mustafa; Dogan, Yildiz; Ozcan, Burcu; Ercisli, Sezai; Serce, Sedat
Mulberries (Morus L.) show a great deal of genetic variability and adaptability to various environments. There are more than 24 species of mulberries in cultivated and wild forms. In Turkey, three Morus species, M. alba L., M. nigra L., and M. rubra L., are grown. In this study, we attempted to characterize 43 Morus accessions originating from distinct regions of Turkey using fluorescent dye amplified fragment length polymorphism (AFLP) markers and capillary electrophoresis. The accessions belonged to M. alba, M. nigra, and M. rubra; M. alba consisted of white- and purple-fruited samples. Eight primer combinations generated a total of 416 bands, 337 of which were polymorphic (80.5%). Resolving powers of the AFLP primers ranged from 0.410 to 0.942 making a total of 5.015, whereas the polymorphic information content ranged from 0.662 to 0.898 with an average of 0.812. Unweighted pair-group method of arithmetic mean (UPGMA) clustering of the accessions showed three major groups representing M. nigra, M. rubra, and M. alba accessions. The M. alba group had two subgroups that were not correlated with fruit color. The UPGMA dendrogram of average taxonomic differences confirmed these results. The principle coordinate analysis demonstrated that M. nigra accessions had limited genetic variation. In conclusion, our study indicated that M. nigra and M. rubra are molecularly distinct from M. alba. Our results also suggest that M. nigra accessions having a low level of morphological variation are molecularly similar.
MOLECULAR CHARACTERIZATION OF SOME SELECTED PERSIMMON GENOTYPES AND CULTIVARS BY SRAP AND SSR MARKERS
(Serbian Genetics Soc, 2017) Pinar, Hasan; Yildiz, Ercan; Kaplankiran, Mustafa; Toplu, Celil; Unlu, Mustafa; Serce, Sedat; Ercisli, Sezai
In this study, SRAP and SSR markers were employed to determine genetic relationships among 42 persimmon genotypes (Diospyros kaki Thunb) obtained from Hatay province and 3 persimmon cultivars, 2 of which belong to Diospyros kaki Thunb and one belongs to Diospyros oleifera Cheng. Genetic relationships were determined by using a total of 29 molecular DNA primers (SRAP and SSR). Of these primers, 21 SRAP primer combinations produced a total of 107 bands and 77.6% of them were polymorphic; 8 SSR primers produced 26 polymorphic bands with an average polymorphism ratio of 84.6%. The SRAP and SSR markers produced 4.6 bands as average and the number of bands produced per marker was calculated as 3.6. The lowest similarity was observed between MK-113 (Diospyros oleifera Cheng) and the other genotypes all belongs to Diospyros kaki Thunb (with similarity ratios of 0.41-0.69 for SRAP primers, between 0.25-0.67 for SSR primers). The genotypes/cultivars belongs to Diospyros kaki had similarity ratio between 0.98-1.00 according to SRAP and SSR markers. This synonym or similarity could be results of clonal propagation rather than autogamy.

Yazar "Serce, Sedat" seçeneğine göre listele

Sayfa Başına Sonuç

Sıralama seçenekleri