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Articles by M. Esfahani
Total Records ( 2 ) for M. Esfahani
  A. Gholizadeh , M.S.M. Amin , A.R. Anuar , M. Esfahani and M.M. Saberioon
  Problem statement: In order to meet the ever increasing demand of medicinal plants, for the indigenous systems of medicine as well as for the pharmaceutical industry, some medicinal plants need to be cultivated commercially and moldavian balm (Dracocephalum moldavica) is one of them. Approach: To determine the effects of zeolite and water stress on aforementioned plant’s phisiomorphological characteristics, an experiment was conducted with applying four zeolite levels and three water discharge levels during plant growth. Some growth and development parameters were measured. Results: Summarized that, zeolite did not have any significant effect on plant height and number of internodes but had, on the other traits. There were not a significant effect of water discharge on plant height, number of flowers and number of internodes but its effect on the flowering time and essential oil content was significant. Moreover, there was not an interaction between zeolite and water stress on number of flowers and number of internodes but this interaction was significant on the other parameters. Conclusion: Finally, 2 g zeolite with 50% water losses was recommended to obtain higher essential oil. Additional researches are needed to confirm the results for data from other fields and crops.
  M. Jamalomidi , M. Esfahani and J. Carapetian
  Zinc deficiency in crop plants has been recognized as a worldwide nutritional constraint. A greenhouse experiment was conducted in order to evaluate the effects of Zn nutrition and salinity stress and their interaction on agronomical traits, chlorophyll and proline content of rice plant. Eight local and improved low land rice genotypes were grown at 0, 10 and 20 mg Zn kg-1 soil under saline (6 dS m-1) or non-saline condition at tillering stage. Results showed that interaction between Zn x salinity effects on filled grains, 100 grain weight and chlorophyll content were widely varied in rice plant genotypes. Only 100 grain weight was significantly differ at Zn x salinity x genotype interaction levels. Free proline content was significantly lower in Zn-efficient genotypes (Shafagh, Pokkali, IR9764 and IR9884) in comparison with Zn-inefficient genotypes (Hashemi, Domsiah, Kados and IR26). It seems that under salinity stress, the higher content of free proline could be considered as an injury indicator in rice plant. It could be concluded that Zn-efficient rice genotypes tolerated salinity better than the Zn-inefficient genotypes.
 
 
 
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