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    COMPARISON OF ORGANIC AND TRADITIONAL PRODUCTION SYSTEMS IN CHICKPEA (Cicer arietinum L.)
    (Soc Field Crop Sci, 2013) Caliskan, Sevgi; Erdogan, Cahit; Arslan, Mehmet; Caliskan, Mehmet Emin
    Yield and yield components, and protein content of chickpea (Cicer arietinum L.) were compared in traditional and organic production systems since organic farming has many advantages on environment, animal and human health over traditional production systems. In the study, organic production system, green manure, farmyard manure and effective microorganisms and their combinations were tested as six treatments. Seed yield and some yield components were found higher in the traditional production system than those of organic production systems. The highest protein content was obtained in green manure and farmyard manure applications. Among the organic production systems, green manure and farmyard manure applications could be strongly recommended for organic chickpea producer since the highest seed yields with 2729 in 2007 and 3838 kg ha(-1) in 2008 were found in green manure + farmyard manure treatment among the organic production systems.
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    Genetic characterization and cotyledon color in lentil
    (Inst Investigaciones Agropecuarias - Inia, 2015) Erdogan, Cahit
    Genetic characterization of lentil (Lens culinaris Medik.) cultivars is important for lentil breeding. Therefore, random amplified polymorphic DNA (RAPD) and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis were carried out to evaluate genetic diversity in 13 Turkish lentil cultivars. A total of eight RAPD primers were used in this study; 61 bands were produced and 55 of them were polymorphic (89.78%). The RAPD primers OPA-10, OPB-11, and OPI-13 had the highest polymorphism ratio (100%). As a result of SDS-PAGE analysis, variations in the seed protein pattern were observed among the lentil cultivars being studied. The SDS-PAGE similarity matrices indicated higher genetic similarity estimates among the lentil cultivars than RAPD. In addition, principal components analysis (PCA) was performed for both SDS-PAGE and RAPD where the first three components accounted for 75.760% and 68.121% of the total variation for SDS-PAGE and RAPD analysis, respectively. It was noted that the lentil cultivars with factor loadings greater than 0.5 for each principal component (PC) were also grouped together in the SDS-PAGE and RAPD dendrogram. In addition to genetic diversity, cotyledon color (an important market criterion) values were measured for lightness (L*), redness (a*), and yellowness (b*). As for cotyledon color, values for brightness, redness, and yellowness varied significantly among lentil cultivars. Among the red lentil cultivars, 'Cagil' and 'Yerli Kirmizi' had the highest cotyledon L* values of 70.83 and 70.74, respectively. The results of both genetic diversity analyses and cotyledon color of lentil cultivars would help in planning future breeding programs to improve high yielding marketable lentil cultivars.
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    Genetic diversity in some faba bean (Vicia faba L.) genotypes assessed by simple sequence repeats
    (Taylor & Francis Ltd, 2017) Tufan, Hidayet; Erdogan, Cahit
    The success of the breeding programmes depends on the dimension of genetic variability. Simple sequence repeats (SSR) have been extensively used in the studies including genetic characterization of many plant species. The objective of this study was to investigate the genetic variation in 22 faba bean genotypes, 18 of which were originated from International Center for Agricultural Research in the Dry Areas (ICARDA) and 4 of which were cultivated genotypes in Turkey, using SSR markers. Of 41 SSR markers used, 25 produced bands. As a result of SSR amplification, a total of 39 bands, 25 of which were polymorphic and 14 of which were monomorphic, were obtained. The mean gene diversity and polymorphism information content values were 0.27 and 0.24, respectively. The faba bean genotypes cultivated in Turkey had greater genetic diversity than those that originated from ICARDA. The faba bean genotypes FLIP10- and FLIP03- were successfully separated, using the un-weighted pair group method with arithmetic average dendrogram constructed via Jaccard similarity coefficients. These results were further supported by factor analysis substantially. The results indicated that there is sufficient genetic diversity among the tested faba bean genotypes (especially cultivated in Turkey) and could be used in faba bean breeding programmes.
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    Insecticidal effects of essential oils from Labiatae and Lauraceae families against cowpea weevil, Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) in stored pea seeds
    (Entomology & Applied Science Research Letters-Easletters, 2017) Demirel, Nihat; Erdogan, Cahit
    The cowpea weevil, Callosobruchus maculatus (F.) (Coleoptera: Bruchidae), is one of the most serious pests of stored pulse seeds. The essential oils obtained from rosemary (Rosmarinus officinalis L.), Turkish oregano (Origanum onites L.), sweet marjoram (Origanum majorana L.), Greek oregano (Origanum vulgare L.), mountain oregano (Origanum minutiflorum L.) and laurel (Laurus nobilis L.) have been analyzed by GC and GC-MS and tested for their insecticides effects against the cowpea weevil. In the current study, 1,8 cineole (21.45%), camphor (19.70%) from rosemary, 1,8 cineole (37.84%), alpha-terpinyl acetate (15.33%) from laurel, carvacrol (57.01%) from Turkish oregano, carvacrol (34.14%), thymol (20.36%), terpinene-4-ol (12.31%) from sweet marjoram, carvacrol (59.87%), p-cymene (17.55%) from Greek oregano, carvacrol (52.04%), p-cymene (22.87%) from mountain oregano have been identified as the main volatile components. In both bioassays, essential oil extracted from rosemary and laurel resulted in significant mortality on the cowpea weevil with 1.6 (mu g mL(-1)) concentrations comparing with the sweet marjoram, the Turkish oregano, the Greek oregano and mountain oregano. The essential oil extracted from the laurel and rosemary had the lower lethal concentrations compared with the Turkish oregano, sweet marjoram, Greek oregano and mountain oregano in both bioassays. The major components of 1,8 cineole, camphor, alpha-terpinyl acetate, carvacrol, thymol, terpinene-4-ol, p-cymene act as insecticides to the cowpea weevil. The essential oils extracted from rosemary and laurel can be recommended as a potential source of environment-friendly botanical insecticide in control of the cowpea weevil.
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    Propagation of some native grown medicinal plants by stem cuttings
    (2002) Ayanoglu, Filiz; Mert, Ahmet; Erdogan, Cahit; Kaya, Alpaslan
    Salvia indica L., Helichrysum plicatum subsp, plicatum D.C., and Satureja thymbra L, are some native grown plants which are used as folk medicine in Hatay province, Turkey. The propagation possibilities of these plants by stem cuttings were investigated, Different IBA (Indole 3-butiric acid) doses were applied to 10-12 cm cuttings as a rooting agent: 100, 250, 500, 1000 and 2000 ppm for H. plicatum; 250, 500, 1000, 2000 and 4000 ppm for S. thymbra; and 100, 250, 500, 1000, 2000 and 4000 ppm for S. indica L. The experimental design was a completely randomized block with four replications. Each replication had 25 cuttings. Cuttings were immersed in different IBA doses for 5 seconds. No IBA was applied to the control cuttings. Rooting ratio (%), root length (cm), root number (number/cutting) and rooting quality of cuttings were measured. The best rooting ratios were obtained from 250 and 1000 ppm IBA doses for H. plicatum, 1000 and 2000 ppm for S. thymbra and S. indica. © 2002 by The Haworth Press, Inc. All rights reserved.
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    RESPONSE OF RAINFED CHICKPEA (Cicer arietinum L.) TO TWEEN ROW SPATIAL ARRANGEMENT AT MULTIPLE DENSITIES
    (Univ Agriculture, Fac Veterinary Science, 2014) Erdogan, Cahit
    Plant density and arrangement are important factors affecting rainfed chickpea yield. A field experiment was conducted under the Eastern Mediterranean conditions for two consecutive growing seasons (2009-2010 and 2010-2011) to evaluate the effects of plant density (20, 25, 35 and 55 plants per m(2)) and spatial configuration (conventional single 36-cm row width vs 18-cm twin rows spaced 72-cm between paired-rows). The experiment was laid out in a randomized complete block design in a factorial arrangement with three replications. Light interception (LI) and leaf area index (LAI) were significantly affected by plant density. Twin-row arrangement had higher light interception efficiency (LIE) than the single-row. Plants grown in the higher plant densities had greater LAI and LI; however, they had inefficient use of incident solar radiation. The number of primary branches was significantly affected by both planting patterns and plant densities, but the number of secondary branches was significantly affected only by the plant densities. The number of pods and seeds/plant decreased with the increasing plant density. The highest seed weight/plant was recorded at the lowest density (20 plants/m(2)) while the lowest one was recorded at the highest plant density (55 plants/m(2)). Seed weight and harvest index in the twin row were significantly higher in tween row than in the single row.
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    Öğe
    Response of rainfed chickpea (Cicer arietinum L.) to tween row spatial arrangement at multiple densities
    (University of Agriculture, 2014) Erdogan, Cahit
    Plant density and arrangement are important factors affecting rainfed chickpea yield. A field experiment was conducted under the Eastern Mediterranean conditions for two consecutive growing seasons (2009-2010 and 2010-2011) to evaluate the effects of plant density (20, 25, 35 and 55 plants per m2) and spatial configuration (conventional single 36-cm row width vs 18-cm twin rows spaced 72-cm between paired-rows). The experiment was laid out in a randomized complete block design in a factorial arrangement with three replications. Light interception (LI) and leaf area index (LAI) were significantly affected by plant density. Twin-row arrangement had higher light interception efficiency (LIE) than the single-row. Plants grown in the higher plant densities had greater LAI and LI; however, they had inefficient use of incident solar radiation. The number of primary branches was significantly affected by both planting patterns and plant densities, but the number of secondary branches was significantly affected only by the plant densities. The number of pods and seeds/plant decreased with the increasing plant density. The highest seed weight/plant was recorded at the lowest density (20 plants/m2) while the lowest one was recorded at the highest plant density (55 plants/m2). Seed weight and harvest index in the twin row were significantly higher in tween row than in the single row.