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Articles by Danial Kahrizi
Total Records ( 2 ) for Danial Kahrizi
  Jahad Soorni , Danial Kahrizi and Mozhgan Molsaghi
  Plant tissue culture setting up is one of the most important stages for modern plant breeding. Availability of a tissue culture protocol for genetic transformation toward resistance to diseases would be an important step for the establishment of a genetic transformation system in most plants. In current research, callus induction was investigated in Cuminum cyminum. The experiment was arranged in a factorial experiment with two factors. The first factor was 2,4-Dichlorophenoxyacetic acid (2,4-D) plant growth regulator in four levels (0, 0.5, 1 and 2 mg L-1 plus 0.1 mg L-1 kinetin) in the MS basal medium. The second factor was photoperiodic status in two levels (dark and 16/8 h light/dark). The experiment was layed out based on completely randomized design with three replications. Statistical analysis results showed that the highest percentage of callus induction was resulted at 1.0 mg L-1 2,4-D in both photoperiod conditions. Interaction effect of photoperiodx2,4-D concentrations showed significant (p≤0.05) difference of callus induction of cumin. It is concluded that 1 mg L-1 2,4-D treatment showed the most efficient influence on leaf explants callus induction.
  Danial Kahrizi and Tohid Alaahvarand
  Oilseed rape (Brassica napus L.) is one of the most important oil seed crops. The present study was carried out to (1) study of some agro-phenological traits and (2) to estimate genetic variability parameters for the studied traits in 17 spring rapeseed genotypes (SW Highly, Olga, Eagle, Cracker Jack, Sarigol, Mozart, SW 3497, RGS003, Amica, Calimar, Hyola 330, Hyola 401, Hyola 308, Goliath, Zarfam, Profit and Option 500). The experiment was conducted based on Randomized Complete Blocks Design (RCBD) with three replications. The characters studied were grain yield, some phenological, morphological and physiological traits. Statistical analysis showed significantly differences among the genotypes based on the most studied traits. This indicated that there was sufficient variability available to have an effective selection. Genotypic and phenotypic coefficients of variations were high for grain yield, crown to first node distance (CND), Harvest Index (HI). High genetic gain was observed for HI (42.91%) and CND (39.25%). Correlation analysis showed the grain yield was significantly and negatively correlated with phenological traits include days to flowering initiation (-0.57), days to 10% flowering (-0.57), days to 50% flowering (-0.59), days to complete flowering (-0.57), days to complete ripening (-0.55) and was significantly and positively correlated with HI (0.80) and chlorophyll content (-0.32). High heritability estimates in characters i.e., all phonological traits (from 84.38 to 93.18) and chlorophyll content (65.35), whereas low heritability was observed for the grain yield (32.49), CND (33.15) and HI (30.25).
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