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Ozberk I.,Harran University | Kilic H.,Southeastern Anatolia Agricultural Research Institute | Ozberk F.,Training Extensions and Research Center | Atli A.,Harran University | And 2 more authors.
African Journal of Agricultural Research | Year: 2011

This study aimed to assess a variety selection and preference criteria based on net return ha-1 in durum wheat (Triticum durum L). Regional yield trials with 25 entries were planted in Diyarbakir, Hazro and Ceylanpinar locations in southeast Anatolia in 2004/05 and in Diyarbakir and Hazro in 2005/2006 growing season. A randomized complete block design with 4 replications was employed. Grain samples from each location were subjected to some quality analyses and then presented to randomly selected grain purchasers within the local commodity market for market price estimations. The results revealed that entries 13, 7, 3, 16 and 24 were found to be top 5 highest yielding. Regression analysis showed that the entry 13 and 24 were stable for grain yield. It was found that the most of high yielding entries were also high income generating in both years. Entries 13, 24, 16, 7 and 2 were always found to be first 5 highest incomes generating in both years. Except for 1000 kernel weights in first year, none of other quality parameters was found to be correlating market prices. There were 6.08 and 25 US$/tonne market price difference between entries with highest and lowest market prices in both years respectively. It was concluded that Şanliurfa commodity market does not offer adequate premiums for the quality characteristics of durum wheat under study. This may result in farmer preference for high yielding with relatively low quality varieties. Breeders and farmers must also give priority to develop select cultivars with high net return (US$/ ha) rather than high yielding or high quality (=high marketing prices) only. © 2011 Academic Journals. Source


Karademir E.,Southeastern Anatolia Agricultural Research Institute | Karademir C.,Southeastern Anatolia Agricultural Research Institute | Ekinci R.,Southeastern Anatolia Agricultural Research Institute | Baran B.,Plant Protection Research Institute | Sagir A.,Dicle University
Notulae Botanicae Horti Agrobotanici Cluj-Napoca | Year: 2010

The 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. Source


Karademir E.,Southeastern Anatolia Agricultural Research Institute | Karademir C.,Southeastern Anatolia Agricultural Research Institute | Ekinci R.,Southeastern Anatolia Agricultural Research Institute | Baran B.,Plant Protection Research Institute | Sagir A.,Dicle University
International Journal of Plant Production | Year: 2012

The 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. Source


Karademir C.,Southeastern Anatolia Agricultural Research Institute | Karademir E.,Southeastern Anatolia Agricultural Research Institute | Gencer O.,Cukurova University
Bulgarian Journal of Agricultural Science | Year: 2011

The objective of this study was to evaluate the potential of F 1 and F 2 hybrids by comparing them with parents for yield, fiber quality characteristics and heterosis values under drought stress conditions. In this study, eight cotton lines/varieties and 15 F 1 and 15 F 2 hybrids obtained by crossing five lines and three testers in the line x tester mating design during 2001 and 2002 cotton growing season, totally 38 genotypes (8 parent, 15 F 1 hybrids and 15 F 2 hybrids) were planted in randomized complete block design (RCBD) with three replications in 2003. At this study seed cotton yield, lint percentage and fiber quality characteristics such as fiber length, fineness, strength, elongation, uniformity and spinning consistency index (SCI) were investigated. The result of this study showed that the variances among the genotypes were significant for lint percentage, fiber fineness, fiber strength and spinning consistency index. Similarly, variance for fiber fineness was significant among parents, F 1 and F 2 hybrids. In relative performance, F 1 and F 2 hybrids, on an average produced 9.74 and 3.41% more yield than the parents, respectively. Though, F 2 hybrid population have shown-5.77% inbreeding depression, nevertheless 6 of the 15 F 2 hybrid populations had higher yield than F 1 hybrids indicating that potential in F 2 hybrids exists to replace F 1 hybrids crop development under drought stress conditions. In lint percentage, fiber length and fiber strength; average of F 1 and F 2 hybrids were higher than average of parental genotypes. Especially, in fiber fineness F 2 hybrids were slightly higher than average of parental genotypes, but F 1 hybrids were lower than both F 2s and parent. Source


Kilic H.,Bingol University | Akar T.,Central Research Institute for Field Crops | Kendal E.,Southeastern Anatolia Agricultural Research Institute | Sayim I.,Central Research Institute for Field Crops
African Journal of Biotechnology | Year: 2010

This study was carried out in 2002 to 2003 and 2003 to 2004 seasons at the experimental area of Elazi{dotless}ǧǧ Agriculture Provincial Directorate in Turkey to investigate the genetic and environmental variation of grain yield and some quality traits of 21 barley cultivars. Grain yield, hectoliter weight (HLW), thousand grain weight (TGW), coarse grain and protein content were investigated in the trial. The analysis of the results showed that the highest grain yield was obtained from Balkan-96 variety (4790 kg ha-1), followed by Şahin-91 (4677.8 kg ha-1) and Aydanhani{dotless}m (4520.6 kg ha-1), the lowest one from Angora variety (3255.8 kg ha-1) under the agro ecological conditions of Elazi{dotless}ǧ region. There was a significant year x variety interaction for grain yield and protein content while HLW, TGW and coarse grain traits were not affected by year x variety interaction. Aydanhani{dotless}m and Orza-96 cultivars can be used as parents for improving new malting cultivars with higher TGW, HLW and coarse grain and low protein value, while Sahin-91 and Tokak-157/37 for new feeding cultivars. © 2010 Academic Journals. Source

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