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Articles by A. Ghanbari
Total Records ( 4 ) for A. Ghanbari
  A. Ghanbari , F. Nadjafi and J. Shabahang
  A research was conducted during growing season of 2005 to study the effects of irrigation regimes and row arrangement on yield, yield components and seed quality, oil percentage, germination index, germination percentage and seedling growth parameters and vigority of pumpkin (Cucurbita pepo L.). Three irrigation intervals of 7, 14 and 21 days and different plant spacing of 100x20, 100x40, 200x20 and 200x40 cm were used. Results indicated that the highest seed yield of pumpkin was observed in irrigation interval of 7 days, but it was not a significant difference between 7 and 14 days irrigation intervals. Irrigation intervals have a significant effect on number of seeds per fruit and the highest amount was observed in irrigation intervals of 7 days. Increasing irrigation interval up to 21 days decreased significantly the number of seeds per fruit and consequently seed yield per unit area. The highest seed oil yield was observed in irrigation interval of 7 days. Irrigation intervals had not significant effects on germination index and germination percentage of pumpkin but significantly affect lengths and wet weights of primary root and hypocotyls and vigority in pumpkin seeds. Results showed that the highest seed yield of pumpkin was obtained in 100 cm row distances in compare to 200 cm. Row distance had not a significant effect on number of seeds per fruit, but the highest fruits number was observed in lower row distances. Germination index and germination percentage were not affected by row distances but the highest root and hypocotyl lengths and wet weights and also seed vigority were observed in higher distances. Between row distances did not have a significant effect on evaluated parameters. The most favorable interaction treatment for seed yield and seed oil yield of pumpkin was irrigation interval of 7 days and plant spacing of 100x40 cm (25000 plants ha-1).
  S. Bahrami , M. Solouki , B. Siasar and A. Ghanbari
  In order to determine the level of TaGSK1 gene expression in 9 selected wheat genotypes an experiment was carried out in Agricultural Biotechnology Institute, University of Zabol. Seeds of wheat cultured on solid MS medium plate under positive and control condition and RNA was extracted for each genotype and treatment. Relative gene expression using cDNA as template was done in Real Time PCR. The results of real time PCR showed that the Bam genotype has maximum level expression of TaGSK1 gene between 9 genotypes. Minimum expression was found in ER-Salt-85-17 line originated from Tehran Province. TaGSK1 gene expression between genotypes is varied from 39% in ER-Salt-85-17 until 71% in Bam genotypes.
  N. Bagheri , N.B. Jelodar and A. Ghanbari
  In a diallel cross rice involving five varieties (Dailamani, Sange-tarom, Hasani, Shastak-Mohammadi and Daei-shastak), combining ability and gene action for yield and yield-related traits were estimated. The study indicated that both general and specific combining ability effects were significant and important for the more traits, except for primary branching of panicles and paddy width traits. This indicates the role of additive and non-additive gene effects in inheritance of the traits. Variances due to GCA were greater than those due to SCA for plant height, flag leaf width, primary and secondary branching of panicles and filled grain per panicle traits, suggesting the role of additive gene effects were predominant in inheritance of the traits. These characters have high heritability and selection for them may well succeed. But, low heritability of tiller number, flag leaf length, days to maturity, panicle length, paddy length and width, 1000-grain weight and grain yield characters, were because of a high amount of non-additive variance in the genetic variance. Thus these characters were important for production of hybrid variety and exploitation of heterosis. The GCA effects of each parent for these traits showed that the Shastak-Mohammadi and Daei-shastak are good general combiner for days to maturity and grain yield, respectively.
  A. Ghanbari , N.B. Jelodar and H. Rahimian
  Genetic diversity of forty-four genotypes of Satsuma cultivars from Mazandaran was assessed using Simple Sequence Repeat (SSR) markers. SSR markers in different genotypes determined 2-5 alleles. The average of Polymorphic Information Content (PIC) in SSR markers were 0.88. Also, Principal Component Analysis (PCA) showed that SSR with four primary factors explained 80% of variations. Dendrograms showed that SSR markers could completely separate the Unshiu population. All the genotypes were grouped in 3 distinct clusters in cluster analysis. The control population, owari Genotypes were located in a separated cluster, while local Unshiu genotypes, unknown Unshiu, Wase and Wase derived genotypes were put together in another cluster. These results confirm the close relationship between local unshiu genotypes and Wase group or one of its similar varieties.
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