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Öğe Assessment of Tolerance Level of some Cotton (Gossypium hirsutum L.) Varieties against Verticillium wilt (Verticillium dahliae Kleb.)(2010-10-01) Karademir, Emine; Karademir, Çetin; Ekinci, Remzi; Baran, Behzat; Sağır, AbuzerThe objective of this study was to assess the tolerance level of some cotton varieties against Verticillium wilt (Verticillium dahliae Kleb.) disease. Verticillium wilt is one of the major constraint diseases of cotton production worldwide and also in Turkey. The study was carried out at the Southeastern Anatolia Agricultural Research Institute’s naturally infected experimental area during 2004-2006. In this study, 10 different commercial cotton varieties were used as plant material. The experimental design was a randomized complete-block with four replications. During the cotton growing season, foliar disease index (FDI), vascular disease index (VDI) and vascular disease rate (VDR) were observed in addition to seed cotton yield and some fiber quality characteristics. According to the results, it was determined that with regards to FDI, VDI and VDR, the most tolerant varieties were ‘GW-Teks’, ‘GW-Golda’ and ‘Carmen’, while the most sensitive varieties were ‘Maraş 92’, ‘Sayar 314’ and ‘Stoneville 453’. The other varieties had moderate tolerance levels. The highest seed cotton yield and lint yield were obtained from ‘DP-Deltaopal’ and ‘Stoneville 453’. These results showed that some sensitive varieties had high yield; the reason for this situation may be related with early or late occurrence of the disease. The result of this study indicated that ‘GW-Teks’, ‘GW-Golda’ and ‘Carmen’ varieties must be preferred for infected areas; on the other hand, ‘DP-Deltaopal’ and ‘Stoneville 453’ can be recommended and grown in uninfected areas. Additionally, ‘Carmen’, ‘GW-Teks’ and ‘GW-Golda’ varieties can be used as material for improving disease resistance in cotton breeding programs.Öğe Bazı Mısır (Zea mays L.) Çeşitlerinde Verim ve Kalite Özelliklerinin Belirlenmesi(2018-04-19) Kılınç, Sevda; Karademir, Çetin; Ekin, ZehraThis study was carried out to determine quality, yield and yield components and suggesting suitable maize varieties for the region. The research was laid out as randomized complete block design with four replications in 2015 maize growing season in Diyarbakır GAP International Agricultural Research and Training Center. PR31D24, Kalipso, 70MAY82, Suerto, P1921, DKC6724 grain maize varieties with different properties were used as material. According to the obtained results, there were significant differences among varieties in terms of ear length, ear diameter, stem diameter, the number of ear per plant, kernel/ear rate, 1000 kernel weight, grain moisture at harvesting, starch rate, crude fat rate and hectoliter. The P1921 variety sustained the highest yield of 1518.10 kg da-1.Öğe Bazı Pamuk (Gossypium hirsutum L.) Genotiplerinin Doğu Akdeniz ve GAP Bölgesine Uyum Yetenekleri ile Stabilite Analizleri(Harran Tarım ve Gıda Bilimleri Dergisi, 2017-02-16) Güvercin, Ramazan Şadet; Karademir, Emine; Karademir, Çetin; Özkan, Nazife; Ekinci, Remzi; Borzan, GüvenThe main goal of cotton breeding is high yield that affected by the genetic potential of genotypes, environment and cultural applications during the season. This study was conducted to evaluate adaptability and stability of twelve cotton (Gossypium hirsutum L) genotypes in four different environments (Kahramanmaraş, Şanlıurfa, Diyarbakır and Kızıltepe/Mardin) in Turkey and effects of genotype x environment interaction on seed cotton yield in the years of 2006 and 2007. The all experiments in the environments were conducted as randomized complete blocks design with three replications. As average of two years, significant differences were determined among environments, years and genotypes for seed cotton yield. Average seed cotton yield of genotypes ranged from 420.5 kg da-1 (Stoneville 468) to 314.6 5 kg da-1 (ÇA 3) while the averages of years were 394.2 kg da-1 (2006) and 350.6 kg da-1 (2007). The genotypes were tested by stability parameters such as environmental index, genotypes index, mean of genotypes , within-genotype mean square , coefficient of variation , ecovalence , stability variance, regression coefficient, deviations from regression mean square , coefficient of determination , regression line intercept (a), standard error of averages, variance and standard deviation. The results indicated that genotypes BA 308 and Dicle 2000 were the most productive with high mean yield and suitable for all the environments. Genotypes Stoneville 468, BA 119 and Erşan 92 can be suggested for relatively worse environmental conditions than BA 308, Dicle 2000 and Maraş 92.Öğe Bazı Pamuk (Gossypium hirsutum L.) Genotiplerinin Verim ve Lif Teknolojik Özellikler Bakımından Değerlendirilmesi(Yüzüncü Yıl Üniversitesi Tarım Bilimleri Dergisi, 2017-05-21) Karademir, Çetin; Karademir, Emine; Sevilmiş, UğurBu çalışma GAP Uluslararası Tarımsal Araştırma ve Eğitim Merkezi (GAPUTAEM) pamuk ıslah programı ile geliştirilen yeni pamuk hatlarının kontrol çeşitlerle kıyaslanması, verim ve lif teknolojik özelliklerinin belirlenmesi ve öne çıkan genotiplerin tespit edilmesi amacıyla Diyarbakır’da 2012- 2014 yılları arasında yürütülmüştür. Çalışma 20 adet hat/çeşit ile tesadüf blokları deneme desenine göre 4 tekrarlamalı olarak yürütülmüş, denemede 17 adet yeni genotip ile 3 adet kontrol çeşit (Stoneville 468, ADN P 01 ve GW-Teks) materyal olarak kullanılmıştır. İncelenen tüm özellikler bakımından genotipler arasında önemli farklılıkların bulunduğu, kütlü pamuk verimi, lif kopma dayanıklılığı ve ilk el kütlü oranı hariç tüm özelliklerde yıllar arasındaki farklılığın önemli olduğu belirlenmiştir. Yıl x çeşit interaksiyonu ise kütlü pamuk verimi, lif verimi ve ilk el kütlü oranı özelliklerinde önemli bulunmuştur. Üç yıllık veriler incelendiğinde denemede yer alan genotiplerin kütlü pamuk veriminin 318.15 kg da-1 ile 385.09 kg da-1 arasında değiştiği, en yüksek verimin sırasıyla MSR06-2-1, TSPXTLX06-1-75 ve SC-9-2 genotiplerinden elde edildiği, lif verimi bakımından ADN P 01 kontrol çeşidinin 156.40 kg da-1 ile en yüksek değeri gösterdiği tespit edilmiştir. Yeni geliştirilen hatların ilk el kütlü oranı yönü ile kontrol çeşitlerden daha yüksek değerler gösterdiği saptanırken, çırçır randımanında Stoneville 468 çeşidi en yüksek değeri göstermiştir. Lif inceliği yönünden tüm genotipler ideal incelik değerinde yer alırken, lif uzunluğu ve lif kopma dayanıklılığı bakımından GW Teks, ÇG 9 ve SET 34 genotiplerinin üstün değerler gösterdikleri belirlenmiştir.Öğe Combining Ability and Line x Tester Analysis on Heat Tolerance in Cotton (Gossypium hirsutum L.)(Indian Journal Of Natural Sciences, 2016-02-20) Karademir, Emine; Karademir, Çetin; Başal, HüseyinIn recent years cotton breeders have started to interest more and more attention for improving high temperature tolerant cotton varieties due to increased global warming. For this purpose54 cross combinations (6x9) were created in 2010 and 54 F1 hybrid and their 15 parents, totally 69 genotypes were tested at the experimental area of GAP International Agricultural Research and Training Center in 2011. In the populations seed cotton yield, ginning percentage, fiber yield, photosynthetic yield, chlorophyll content and photosynthetically active radiation expressed non-additive gene action (dominant or epistatic) and GCA variance was higher than SCA variance only for fluorescence reflecting the role of additive type of gene action. It was determined that SJ-U86, AGC 375, Fiber Max 819, AGC 208 and STV 453 for seed cotton yield; Fiber Max 819 and Fiber Max 832 for ginning percentage; SJ-U86, DP 90, AGC 375, Fiber Max 819 and STV 453 for fiber yield; Fiber Max 832 and STV 453 for photosynthetic yield; AGC 375, SJ-U 86 and DP 396 for chlorophyll content; Fiber Max 819 and STV 474 for fluorescence; AGC 208 and DP 499 for photosynthetically active radiation (PAR) were the best parent cotton varieties and also having the best (GCA) general combining abilities. In the study specific combining ability (SCA) of hybrids were investigated and some promising cross combinations were selected and transferred to the next generation.Öğe Combining Ability Estimates and Heterosis for Yield and Fiber Quality of Cotton in Line x Tester Design(Notulae Botanicae Horti AgrobotaniciCluj-Napoca, 2009-09-01) Karademir, Çetin; Karademir, Emine; Ekinci, Remzi; Gençer, OktayThe objective of this study was to facilitate the selection in cotton breeding program and estimate the general combining ability (GCA) of the parents and specific combining ability (SCA) of hybrids considered for the development of high yielding and better fiber quality in early generations. The study was carried out at the Southeastern Anatolia Agricultural Research Institute during 2006 and 2007 cotton growing season. Seven cotton lines (which are known as high quality) and three testers (which are known as well adapted and high yielding) were crossed in a line x tester mating design in 2006. Ten genotypes and 21 F1 hybrids were planted in the randomized complete block design with three replications at the same experimental area in 2007. The variance due to GCA and SCA were highly significant for all the traits studied. This indicated that both additive and non-additive gene effects were responsible for the investigated characters. From the trial it was found that in the population, fiber length, fiber fineness and fiber elongation were influenced by additive gene effects while seed cotton yield, fiber yield, ginning percentage, fiber strength and fiber uniformity were influenced by non-additive gene effects. Among the parents FiberMax 832, Teks, Stoneville 453 and Maraş 92 for seed cotton yield and fiber yield; Aşkabat 71 and Giza 45 for fiber length and fiber strength; Aşkabat 71 for fiber fineness and fiber uniformity were detected with higher general combining ability. Most of the parents except Aşkabat 71, Giza 45 and Maraş 92 exhibited GCA for ginning percentage. SCA was significant for FiberMax 832 x Stoneville 453, Tam 94 L 25 x Maraş 92 and Teks x Stoneville 453 hybrid combinations for yield with acceptable fiber quality.Öğe Control of Ascochyta Blight (Ascochytha rabiei ) in Chickpea in Winter Sowing in Southeastern Anatolia(2016-12-21) Aydın, M.Hadi; Oğuz, Abdulrezak; Erdemci, İrfan; Karademir, ÇetinAscochyta blight, caused by Ascochyta rabiei (Pass.) Labrousse (teleomorph=Didymella rabiei), is one of the most serious diseases of chickpea in many countries including Turkey. In this investigation, we searched the reaction of some chickpea varieties against to the causal agent of ascochyta blight disease of A. rabiei in natural conditions and in different locations in the Southeastern Anatolia and revealed some data for the control of this disease. Rainfall and humidity has created ideal conditions for development this disease in the season of production between 2015 and 2016. In these circumstances, determined tolerant varieties and some applications are made in farm conditions against diseases for at least lowering the effect on the yield of chickpea in the winter sowing. As a result, Askan and Arda varieties were identified as the most tolerant varieties against the disease at all locations. It was determined that if these chickpea varieties sown in autumn, seed dressing and foliar spraying is done on time, the negative impact of disease will be minimum on yield.Öğe Control of Ascochyta Blight (Ascochytha rabiei ) in Chickpea in Winter Sowing in Southeastern Anatolia.(The Journal of Turkish Phytopathology, 2016-12-30) Aydın, M. Hadi; Öğuz, Abdulrezak; Erdemci, İrfan; Karademir, ÇetinAscochyta blight, caused by Ascochyta rabiei (Pass.) Labrousse (teleomorph=Didymella rabiei), is one of the most serious diseases of chickpea in many countries including Turkey. In this investigation, we searched the reaction of some chickpea varieties against to the causal agent of ascochyta blight disease of A. rabiei in natural conditions and in different locations in the Southeastern Anatolia and revealed some data for the control of this disease. Rainfall and humidity has created ideal conditions for development this disease in the season of production between 2015 and 2016. In these circumstances, determined tolerant varieties and some applications are made in farm conditions against diseases for at least lowering the effect on the yield of chickpea in the winter sowing. As a result, Askan and Arda varieties were identified as the most tolerant varieties against the disease at all locations. It was determined that if these chickpea varieties sown in autumn, seed dressing and foliar spraying is done on time, the negative impact of disease will be minimum on yield.Öğe Correlations and Path Coefficient Analysis between Leaf Chlorophyll Content, Yield and Yield Components in Cotton (Gossypium hirsutum L.) under Drought Stress Conditions(Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2009-09-01) Karademir, Çetin; Karademir, Emine; Ekinci, Remzi; Gençer, OktayIn this study 20 genotypes, including 2 cultivars and 18 advanced cotton lines were grown under induced drought stress conditions. Twenty cotton genotypes were evaluated in terms of leaf chlorophyll content, number of boll per plant, boll weight, seed cotton weight per boll, number of monopodial branches, number of sympodial branches, 100 seed weight, plant height, ginning out turn and seed cotton yield. According to results of analysis of variance there were significant differences among the genotypes in terms of leaf chlorophyll content, seed cotton weight per boll, 100 seed weight, plant height and ginning out turn. There were significant correlations between leaf chlorophyll content, seed cotton yield (r= 0.231*) and ginning out turn (r= 0.320**), however positive but non- significant correlations were observed among leaf chlorophyll content and other investigated characteristics except for plant height and 100 seed weight. Phenotypic correlations were also partitioned into path coefficients, keeping seed cotton yield as the resultant variable and other components as causals. Path analysis revealed that leaf chlorophyll content, plant height, number of monopodial branches, ginning out turn and 100 seed weight had direct effect on seed cotton yield under drought stress conditions. Partitioning through path coefficient analysis revealed that leaf chlorophyll content may be one of the indicators in the improvement of seed cotton yield in cotton under drought stress conditions.Öğe Correlations Between Canopy Temperature, Chlorophyll Content and Yield In Heat Tolerant Cotton (Gossypium hirsutum L.) Genotypes.(Fresenius Environmental Bulletin, 2018-04-26) Karademir, Emine; Karademir, Çetin; Sevilmiş, Uğur; Başal, HüseyinThe study aimed to determine relationships among canopy temperature, chlorophyll content, seed cotton yield and fiber quality properties and using these relationships to screen large material in cotton breeding program under field conditions for heat tolerance. In this study 140 lines and 5 control varieties (Stoneville 468, DP 499, SJ-U 86, AGC 85 and AGC 208) were used as plant material. Field experiment was conducted as augmented design with four blocks. Canopy temperature (CT) measured three times during cotton growing, pre-flowering peak flowering and post flowering, on the other hand chlorophyll content was measured in peak flowering stage. The results of this study indicated that seed cotton yield significantly correlated with canopy temperature and was not affected by crop stage development.Öğe Determination of Tolerance Levels of Cotton Genotypes Obtained from F6-F7 Generation against Verticillium Wilt Disease Caused by Verticillium dahliae Kleb.(Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2013-10-27) Erdoğan, Oktay; Karademir, Emine; Karademir, Çetin; Unay, AydınThe susceptibility of cotton genotypes obtained from F6 and F7 generations to Verticillium wilt (VW) disease (Verticillium dahliae Kleb.), was studied under artificial and natural infestation during 2009 and 2010 growing seasons at the Cotton Research Institute’s, Nazilli, Aydın, Turkey. In this study, fifteen cotton breeding lines and two control varieties were used as plant material. During the cotton growing season, foliar disease index (FDI), vascular disease index (VDI) and pot disease index (PDI) were observed in addition to seed cotton yield and some fiber quality characteristics. According to the obtained results, disease severity (DS) values observed in pot experiments were higher than field trials. In terms of DS, ‘Tamcot CD3H’ × ‘Tamcot Luxor-III’, ‘Maraş92’ × ‘Tamcot Sphinx’ and ‘Sayar 314’ × ‘Stoneville 453-I’ breeding lines exhibited similar values with tolerant ‘Carmen’ variety. ‘Tamcot CD3H’ × ‘Tamcot Sphinx’, ‘Sayar 314’ × ‘Stoneville 453-I’, ‘Sayar 314’ × ‘Stoneville 453-II’ and ‘Stoneville 453’ × ‘Tamcot Sphinx’ breeding lines which gave similar DS values with tolerant ‘Carmen’ variety were statistically on the same group with ‘Carmen’ variety suitable to seed cotton yield. In this study, the disease tolerant breeding lines had higher fiber strength values than susceptible lines, the lowest fiber strength value obtained from ‘Cukurova 1518’ susceptible variety.Öğe Determination the effect of defoliation timing on cotton yield and quality(Journal of central european agriculture, 2007-10-01) Karademir, Emine; Karademir, Çetin; Başbağ, SemaThis study was carried out for determining the effect of different application times at 40, 50, 60 and 70 % boll opening and untreated plot of the defoliant on cotton yield, earliness and technological properties in Southeast Anatolia Region conditions in Turkey. Maras 92 cotton variety was used as plant material in the experiment field of the Southeast Anatolia Agricultural Research Institute during 2000-2001. Defoliant was including thidiazuron + diuron chemical substance. The result of this study showed that ginning percentage, 100 seed weight, seed germination percentage, fiber fineness, fiber length, fiber strength, reflectance, elongation and seed cotton yield were not affected by the treatment; plant height and first picking percentage in 2001, fiber uniformity in 2000 were 5 % significantly affected. This study showed that application of defoliant didn’t affect significantly yield and technological properties of cotton and after 40 % boll opening the defoliant can be used.Öğe Effect of Verticillium dahliae Kleb. on cotton yield and fiber technological properties(International Journal of Plant Production, 2012-05-26) Karademir, Emine; Karademir, Çetin; Ekinci, Remzi; Baran, Behzat; Sağır, AbuzerThe objective of this study was to determine the effect of Verticillium dahliae Kleb. on cotton yield and fiber technological properties, relationships among to disease and seed cotton yield, fiber yield and fiber technological properties and also determine susceptible and tolerant cotton varieties. The study was conducted in the Southeastern Anatolia Agricultural Research Institute’s experimental area during 2004-2006. The experiment was arranged as a randomized split block design with four replications. Main plot consisted of infected and non-infected area, sub-plot consisted of varieties. In this study 10 different commercial cotton varieties were grown to test the verticillium wilt performance. The results indicated that there were significant differences among varieties for all of the investigated characteristics. Area differences were significant for all of the investigated traits except ginning percentage. The results of the non-infected area showed that there were decreasing with regard to foliar disease index (FDI), vascular disease index (VDI), vascular disease rate (VDR), first picking percentage, fiber fineness, micronaire and yellowness; while increasing with regard to seed cotton yield, fiber yield, fiber length, strength, elongation, uniformity, reflectance and spinning consistecy index. Only ginning percentage was unaffected from area differences. With planting cotton varieties in non-infected area there were 323.60 kg ha-1 increase for seed cotton yield and 114.50 kg ha-1 for lint yield. Disease led to a decrease (7.86%) in seed cotton yield and (6.73%) in fiber yield. The results of this study indicated that GW-Teks, GW-Golda and Carmen varieties were tolerant; while Maraş 92, Sayar 314 and Stoneville 453 were sensitive in terms of FDI, VDI and VDR and tolerant varieties can be used as parents in Verticillium breeding programs.Öğe THE EFFECTS OF HIGH TEMPERATURE STRESS ON SOME AGRONOMIC CHARACTERS IN COTTON(Pakistan Journal of Botany, 2017-04-04) Ekinci, Remzi; Başbağ, Sema; Karademir, Emine; Karademir, ÇetinHigh temperature is one of the abiotic stress causing morphological, physiological, biochemical and molecular changes on plant growth and productivity. One hundred and sixty cotton genotypes obtained from genetic stocks was evaluated for high temperature tolerance based on some agronomic characters under field and controlled conditions. Genotypes showed differences for all investigated characters. Plant height, node number and HNR ranged from 68.38-136.45 cm, 18.22-30.10 number.plant-1, 2.89-6.31 (HNR) respectively. Maximum and minimum values in terms of number of sympodial branches, boll abscission at first position, number of seed and seed-cotton yield changed from 11.09-24.42 number.plant-1; 4.17%-20.80%; 20.39-44.11 number.boll-1 and 5.74-60.30 gr.plant-1 respectively. Differences among genotypes were statistically significant for all characters under high temperature stress conditions. High temperature stress was declined the cotton plant development, the decline are important for cotton breeders and cotton breeding programs on the genotypes less affected from high temperature.Öğe Effects of ridge and conventional tillage systems on soil properties and cotton growth(International Journal of Plant Production, 2011-06-01) Gürsoy, Songül; Sessiz, Abdullah; Karademir, Emine; Karademir, Çetin; Kolay, Betül; Urgun, Murat; Malhi, SukhdevCotton (Gossypium hirsutum L.) seeds are susceptible to low temperature and excess moisture in soil during seed emergence in years with high rainfall and low temperature in spring. Therefore, a two-year field experiment was carried out to evaluate effects of ridge tillage formed in autumn (RT-I), ridge tillage formed about a month before planting (RT-II) and flat conventional tillage (CT) cultivation systems on physical properties of soil and cotton growth. The RT-I and RT-II resulted in higher soil temperature and lower soil penetration resistance than CT at all depths. The RT-II gave highest emergence, earliest maturity and greatest seed cotton yield. In conclusion, ridge tillage formed a month before planting may be considered a good agronomic practice because it can provide favorable physical conditions in soil, while also improving growth and yield of cotton under weather conditions in spring in South East Anatolia Region of Turkey.Öğe Heterosis and Combining Ability for Yield and Fiber Technological Properties in Cotton (Gossypium hirsutum L.) Under Drought Stress Conditions(2007-06-01) Karademir, Çetin; Gençer, Oktay; Karademir, EmineThe objective of this study was to determine the General Combining Ability (GCA) of parents and the Specific Combining Ability (SCA) o fhybrids. in the breeding program to develop better yielding and high quality cotton varieties under drought stress conditions. Five cotton lines (Blightmaster, Sicala 33, Tamcot CD 3H, Cabu CS 2-1-83 and Kurak 2) and 3 testers (Maraş 92, Erşan 92 and Stoneville 453) were crossed in a line x tester mating design at Southeastern Anatolia Agricultural Research Institute in 2001. Eight genotypes and 15 F1 hybrids were grown in a randomized complete block design with 3 replications at the same experimental area in 2002. From the trial it was found that in the population, seed cotton yield, fiber length, fiber fineness, fiber strength and fiber elongation properties were influenced by additive; lint percentage and 100 seeds weight was influenced by non-additive gene effects. Heterosis values for fineness and fiber elongation were negative, while the other characters were positive. It was observed that Blightmaster for seed cotton yield and fiber elongation, Erşan 92 for lint percentage, Sicala 33 for fiber length and fiber strength were the best parent cultivars and also having best general combining abilities. It was also obvious that Blightmaster x Stoneville 453 for seed cotton yield, Tamcot CD 3H x Erşan 92 for lint percentage, Tamcot CD 3H x Maraş 92 for fiber length, Tamcot CD 3H x Stoneville 453 for fiber fineness, Sicala 33 x Stoneville 453 for fiber strength, Cabu CS 2-1-83 x Maraş 92 for fiber elongation, were the most promising crosses.Öğe İleri Generasyondaki Pamuk (Gossypium hirsutum L.) Hatlarında Verim ve Lif Kalite Özelliklerinin Belirlenmesi(2015) Karademir, Emine; Karademir, Çetin; Ekinci, Remzi; Sevilmiş, UğurBu araştırma pamukta yapılan melezleme çalışmaları sonucunda geliştirilen ileri generasyondaki hatlarda verim ve lif kalite özelliklerini belirlemek amacıyla GAP Uluslararası Tarımsal Araştırma ve Eğitim Merkezi Müdürlüğü deneme alanında 2013-2014 yılları arasında iki yıl süre ile yürütülmüştür. Çalışmada 6 adet ileri generasyondaki pamuk hattı ile 2 adet kontrol çeşit (Stoneville 468 ve GW Teks) materyal olarak kullanılmıştır. Denemeler tesadüf blokları deneme desenine göre 4 tekrarlamalı olarak yürütülmüştür. Çalışmada; kütlü pamuk verimi ve çırçır randımanı özelliklerinde genotip farklılığının önemli olduğu, lif uzunluğu, lif kopma dayanıklılığı, lif kopma uzaması, lif üniformite oranı yönünden hem genotip ve hem de yıl farklılığının önemli olduğu, kısa lif indeksi özelliğinde genotip, yıl ve genotip x yıl interaksiyonunun önemli bulunduğu, ilk el kütlü oranı ve lif inceliği özelliklerinin ise sadece yıl farklılığından önemli derecede etkilendiği belirlenmiştir. Araştırma sonucunda kütlü pamuk verimi yönü ile GW Teks, KP-24, 2/2 ve 6/1 Nolu genotiplerin, çırçır randımanı yönü ile 30/4 ve Stoneville 468 hat/çeşitlerinin yüksek değer göstererek aynı istatistiki grupta yer aldıkları saptanmıştır. Lif uzunluğu yönünden Stoneville 468 çeşidi dışındaki tüm genotipler aynı istatistiki grupta yer almışlardır. Lif kopma dayanıklılığı, lif üniformite oranı ve kısa lif içeriği özelliklerinde GW Teks kontrol çeşidinin, lif kopma uzaması yönü ile de Stoneville 468 ve 2/2 Nolu genotiplerin daha yüksek değerlere sahip oldukları belirlenmiştir.Öğe Pamukta (Gossypium hirsutum L.) Çok Yönlü Dayanıklılık Islahında Heterotik Etkilerin Saptanması(TARIM BİLİMLERİ DERGİSİ, 2009-12-15) Karademir, Emine; Gençer, Oktay; Karademir, ÇetinThis study was carried out to determine heterosis and heterobeltiosis values of F1 hybrid combinations obtained from Multi Adversity Resistance breeding program and selection of promising hybrids in early generations, and to find out contributions of parents to the heterosis and heterobeltiosis values and ensuring usage of these promising parents in the next cotton breeding programs. In this study, 4 cotton varieties (Tamcot CD 3H, Tamcot HQ 95, Tamcot Sphinx and Tamcot Luxor), developed by Multi Adversity Resistance breeding program, 3 commercial cotton varieties (Maras 92, Stoneville 453 and Sayar 314) and 21 F1 hybrids obtained by 7 x 7 half diallel quantitative analysis method. Investigation was conducted in the South East Anatolia Agricultural Research Institute’s experimental area. The results of the study indicated that there were significant heterotic effects for most of investigated characteristics. F1 hybrids had higher values than parents in terms of investigated characteristics. The seed cotton yield had the highest heterosis and heterobeltiosis values. From the study; 3x6 (Stoneville 453 x Tamcot Sphinx ), 3x4 (Stoneville 453 x Tamcot CD 3H) and 2x7 (Sayar 314 x Tamcot Luxor) hybrid combinations were determined as the most promising hybrids in terms of all of investigated characteristics. Contributions of parents to the heterosis and heterobeltiosis values for all investigated characters were detected. The results showed that Stoneville 453, Tamcot Luxor and Tamcot Sphinx had the most contribution to the seed cotton yield, respectively.Öğe Pamukta Bazı Agronomik Uygulamaların Verim ve Lif Kalite Kriterleri Üzerine Etkileri(2020) Karademir, Emine; Karademir, ÇetinBu çalışma sulama ve azot miktarına (8, 16 ve 24 kg da-1) bağlı kısıntılı, ideal ve aşırı yetiştirme koşullarınınpamuk verimi, bitki gelişimi ve lif kalite özelliklerine etkisini belirlemek amacıyla yürütülmüştür. Deneme tesadüfblokları deneme desenine göre 4 tekrarlamalı olarak yürütülmüş ve materyal olarak GW-Teks pamuk çeşidikullanılmıştır. İki yıl yürütülen çalışma sonucunda kütlü pamuk verimi, lif verimi, bitki boyu, ilk meyve dalı boğumsayısı, odun dalı sayısı, meyve dalı sayısı, koza sayısı yönünden uygulamalar arasındaki farklılığın istatistiki olarakönemli bulunduğu, bu özellikler yönünden en yüksek değerlerin aşırı gelişme koşullarından elde edildiği belirlenmiştir.Çırçır randımanı yönünden yıl farklılığının önemli olduğu, ancak uygulamalar arasındaki farklılığın önemlibulunmadığı, lif kalite kriterlerinden lif uzunluğu, lif inceliği, lif kopma dayanıklılığı, lif kopma uzaması, lif üniformiteoranı ve kısa lif oranı yönünden uygulamalar arasında istatistiki önem düzeyinde bir farklılığın olmadığı tespitedilmiştir. İlk meyve dalı boğum sayısı, meyve dalı sayısı, koza sayısı ve lif uzunluğu özelliklerinde uygulama × yılinteraksiyonunun önemli olması, bu özelliklerin yıllara bağlı olarak değişebileceğini göstermiştir. Çalışma sonucundaincelenen özelliklerin tümü yönünden aşırı yetiştirme koşullarında elde edilen değerlerin ideal ve yetersiz yetiştirmekoşullarına göre daha yüksek olduğu saptanmıştır. Elde edilen bulguların denemede materyal olarak kullanılan GWTeks pamuk çeşidinin genetik performansını yansıttığı, bu değerlerin çeşitten çeşide değişebileceği, farklı çeşitlerleçalışılmasının uygun olacağı sonucuna varılmıştır. Elde edilen bulgular GW-Teks çeşidinin değişen sulama ve azotdozlarına tepkisinin sınırlı olduğunu göstermiştir.Öğe Relationship between Yield, Fiber Length and other Fiber-Related Traits in Advanced Cotton Strains(Notulae Botanicae Horti AgrobotaniciCluj-Napoca, 2010-10-01) Karademir, Emine; Karademir, Çetin; Ekinci, Remzi; Gençer, OktayThe objective of this study was to determine the relationship between yield, fiber length and other fiber related traits in advanced cotton strains, derived from a cotton breeding program. The experiments were conducted in the Southeastern Anatolia Agricultural Research Institute’s experimental area according to randomized complete block design (RCBD) with four replications during 2007 and 2008 cotton growing season. In the study, 9 advanced cotton strains and 2 check varieties (‘GW-Teks’ and ‘Stoneville 468’) were used as plant materials. The results of the statistical analysis indicated that the advanced cotton strains had significant differences in terms of the investigated characteristics when compared to the check varieties. The highest seed cotton yield (4087.0 kg ha-1) and fiber yield (1632.2 kg ha-1) were obtained from ‘SET-34’ cotton strain which had acceptable fiber quality properties. However, the highest fiber length (32.33 mm) was obtained from ‘ERA-85’. The correlation analysis indicated that there were significant negative correlations between fiber length and seed cotton yield, lint yield and ginning percentage, while there were positive and significant correlations between fiber length and fiber strength.
