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        1 - Evaluation of genetic diversity in some bread wheat genotypes under drought stress conditions using germination stage indices
        زهرا مروتی محمد نورانی
        In order to investigate phenotypic and genotypic correlations between Characteristics affecting the germination stage and genetic variation and estimating the genetic parameters of these indices in Drought and normal conditions, 19 genotypes of bread wheat were cultivat More
        In order to investigate phenotypic and genotypic correlations between Characteristics affecting the germination stage and genetic variation and estimating the genetic parameters of these indices in Drought and normal conditions, 19 genotypes of bread wheat were cultivated inCompletely randomized design with three replications in the Laboratories, Department of Agronomy and Plant Breeding of Agricultural Research Campus Natural Resources of Razi University of Kermanshah, Iran In the germination stage was evaluated. The results of variance analysis (ANOVA) showed significant differences for the Germination Percentage (GP), coleoptile Length (KL), Mean Germination Time (MGT), Cofficent of Velocity of Germination (CVG), Average Velocity of Germination (AVG) and Vigor index (SV) under stress and normal condition indicating. The presence of a considerable genotypic variation and possibility of selection of drought tolerant genotypes. The presence of a considerable genotypic variation and possibility of selection of drought tolerant genotypes. According to the biplot obtained in the laboratory conditions (germination test) genotype (16) was located in group A. A high positive genetic and phenotypic relation was observed between GP, AVG, SV and RL, which is completely in line with results of the relation between traits by GTbiplot. High heritability and genetic gain were observed for GP, AVG and SV that reflect the additive gene action. Accordingly, the selection method for studied traits in examined genotypes effective. Cluster analysis using Ward method, based on the traits, classified the genotypes in three different groups. Manuscript profile
      • Open Access Article

        2 - Selection of wheat (Triticum aestivum L.) genotypes under salt stress condition
        Abbasali Nourinia
        Wheat is a moderately tolerant plant to salinity stress, but its genotypes have difference in tolerance range in saline circumstance. In order to evaluate of breed wheat (Triticum aestivum L.) genotypes under saline and normal conditions, an experiment was conducted in More
        Wheat is a moderately tolerant plant to salinity stress, but its genotypes have difference in tolerance range in saline circumstance. In order to evaluate of breed wheat (Triticum aestivum L.) genotypes under saline and normal conditions, an experiment was conducted in 2004 in Golestan agriculture research center. In this research 25 genotypes were evaluated in lab and farm. In lab phase, germination test was arranged in randomized complete block design with three replication in two environments (saline by NaCl with 10dS/m and distilled water with 0 dS/m) and some seed and seedling characteristica as well as root and shoot length, root and shoot dry weight, germination percent were evaluated. In filed experiment seed yield, Cl-, Na+and K+ ions accumulation were measured and some parameters were consist of Stress Tolerance Index (STI), Sensitive Index (SSI) and TOL were calculated. Results indicated that there were significant difference in germination traits among genotype (P<0.05). It was shown that STI is the best parameters for tolerance in genotype selection. IAS58/4/KAL/BB//CJ71/3/ALD/5/CNR/6/BAU/7/BAU/8/BR23/PF, TNMU/SKAUZ SITE/ORL-9127 PRINIA//LIRA/TAN, OPATA85//VEE#5"S"/SARA, TAJAN genotypes have higher tolerance in saline condition and then it could be selected as superior genotypes. Manuscript profile