Effect of Cold Stress on Germination and Growth of Wheat Cultivars

ABSTRACT This laboratory experiment was carried out in the Agricultural College of the Mohaghegh Ardabili University in 2010. It was conducted by factorial design with two factor and three replications, content 30 grain to per replication. Factor A include three temperature levels (2, 3 and 5° C) and factor B, include five wheat cultivars (Gaspard, MV17, Sardary, Cascogen and Bezostaya) were used in this experiment. Result showed that velocity of seed was lowest in the 2° C and Gaspard, Sardary, Cascogen and Bezostaya have highest velocity of seed, respectively. Therefore, greatest, seed velocities belong to Bezostaya cultivar in the 5° C temperature. Lowest, seed velocity related to MV17 in the 2° C temperature. For the number of roots, Cascogen cultivar with greatest and Gaspard cultivar with lowest of number roots were determined. Sardary cultivar has highest coleoptiles length. In the final result, Bezostaya cultivar was arranged in the first and highest level, between five cultivar, for cold stress characteristics and Sardary cultivar was showed second level, significantly in comparison of the another cultivars

Diversidade genética para padrões de gliadinas de raças locais de trigo duro no Noroeste do Iran e no Azerbaijão

The objective of this study was to identify gliadin band patterns and the extent of genetic diversity in durum wheat genotypes from Northwestern Iran and the Republic of Azerbaijan. Gliadins from 46 landraces and four cultivars were evaluated through acid PAGE analyses. Sixty-six polymorphic bands and 81 patterns were identified. Twenty-four different motility bands and 22 patterns were found in the ω gliadin region with 14 polymorph bands and 20 patterns for α and γ gliadins, and 14 bands and 19 different patterns for β gliadins. The combination of these patterns generated 38 and 39 combinations for Gli-1 and Gli-2 loci, respectively. The genetic diversity index (H) was higher for α gliadins (0.924), followed by ω and γ gliadins (0.899 and 0.878, respectively), and for β gliadin patterns (0.866). Extensive polymorphism (H = 0.875) was observed in four gliadin pattern regions, with higher genetic diversity in the Iranian landraces than in the Azerbaijani ones. Each genotype had special identifying patterns in the gliadin acid PAGE analysis, and cluster analysis based on Jaccard's similarity coefficients formed six groups. Gliadin has a simple, repeatable and economic analysis, and can be used in genetic studies.O objetivo deste trabalho foi identificar padrões de bandas de gliadinas e a extenção da variabilidade genética em genótipos de trigo duro do Noroeste do Iran e da República do Azerbaijão. Gliadinas de 46 raças locais e de quatro cultivares foram avaliadas por meio de análises "acid PAGE". Sessenta e seis bandas polimórficas e 81 padrões foram identificados. Foram encontradas 24 bandas de mobilidade e 22 padrões na região da gliadina ω, com 14 bandas polimorfas e 20 padrões para as gliadinas α e γ , e 14 bandas e 19 padrões diferentes para as gliadinas β. A combinação desses padrões gerou 38 e 39 combinações, para os locos Gli-1 e Gli-2, respectivamente. O índice de diversidade genética (H) foi maior para as gliadinas α (0,924), seguidas pelas gliadinas ω e γ (0,899 e 0,878, respectivamente), e pela gliadina β (0,866). Alto polimorfismo (H = 0,875) foi observado em quatro regiões dos padrões de gliadinas obtidos, com diversidade genética maior nas raças locais iranianas do que nas do Azerbaijão. Cada genótipo apresentou padrões de identificação especiais na análise "acid PAGE" de gliadinas, e a análise de agrupamento baseada no coeficiente de similaridade de Jaccard formou seis grupos. A gliadina é de análise simples, repetível e econômica, e pode ser usada em estudos genéticos

Evaloation of Droght Tolerance Indices of Lentil Varietes Shahzad Jamaati-e-Somarin and Roghayyeh Zabihi-e-Mahmoodabad: Evaloation of Droght Tolerance Indices of Lentil Varietes

ABSTRACT Indicators to assess drought tolerance in lentil cultivars Ardabil region factorial experiment based on randomized complete block design with three replications in the 2010 Farm Agricultural Research Station University, Ardebil, was performed. Factors including two levels of planting conditions (irrigation and no irrigation) and lentil cultivars with five levels (ILL1180, ILL1324, ILL1251, local varieties and ILL1237) were. Results showed that, in dryland cultivar in 1180, about 308.22 kg per hectare (23.31 percent) and the 1324 cultivar of about 448.53 kg per hectare (35.51 percent) than irrigated had a yield reduction. The 1180 cultivar with the lowest and highest index value of TOL and SSI MP, GMP and STI in 1324 was also the highest value of TOL, SSI and STI and the 1237 cultivar with the lowest index was MP and GMP. Therefore, according to 1180 cultivars that the stress conditions and water conditions had the highest yield and lowest yield reduction in stress conditions than normal and has had a high resistance to drought is the best cultivar (in Among the studied cultivars) for culture in both irrigated and rainfed conditions is also the cultivar in 1324, is the most sensitive cultivars

Correlation of Tuber Yield Whit Yield Components of Potato Affected by Nitrogen Application Rate in Different Plant Density Gholamin: Correlation of Tuber Yield Whit Yield Components of Potato Affected by Nitrogen Application Rate in Different Plant Densi

ABESTRACT To investigate the study of effect nitrogen application rate in different plant density on correlation of tuber yield whit yield components crop (Agria cultivar), a field experiment was carried out in Ardebil during 2009. The experimental design was factorial in the base of complete random block in three replication. Factors included nitrogen fertilizer rate (0, 80, 160 and 200 kg N ha -1 as urea) and plat density (5.5, 7.5 and 11 plants m -2 ). The resulted showed that the highest yield, number of stolon, harvest index, number of tuber and dry weight of tuber were obtained from application of 80 and 160 kg N ha -1 (commonly). Increasing of plant density resulted in higher tuber yield, No of stolon, dry weight of tuber and total dry matter yield and decreased harvest index. Elevation of nitrogen fertilizer rate to 160 kg N ha -1 mean tuber weight and total dry matter yield improved. Too, There were significantly positive correlation between tuber yield and whole treats, than, harvest index. To obtain highest yield and avoidance of environments pollution use of 80 kg N ha -1 chemical fertilizer and density of 11 plants m -2 are recommended

Protein Yield of Potato Tuber as Affected by Plant Density and Nitrogen Fertilizer

ABSTRACT In order to the study of the effects of plant density and nitrogen fertilizer on yield of protein content in potato tuber (Agria cultivar), a factorial experiment based on randomized complete block design was carried out in Ardabil region in 2009 with three replications. Factors were nitrogen fertilizer levels (0, 80, 160 and 200 kg/ha nitrogen) and plant densities (5.5, 7.5 and 11 plant/m 2 ). Results showed that the highest number, dry weight and yield of tuber and protein yield per unit area and the lowest mean tuber weight and protein percent per plant were achieved in density of 11 plant/m 2 . With increasing nitrogen application up to 80 kg/ha, number, dry weight, yield and protein content of tuber per unit area and mean tuber weight per plant, were increased. So, utilization of 80 kg/ha net nitrogen to achieve highest yield and lowest nitrate accumulation, 11 plant/m 2 to gain seed tuber according to reducing tuber weight and size and 7.5 plant/m 2 to eating utilizations, is recommended