Browsing by Author "Haghighi, Maryam"
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Item The effect of N-Sİ on tomato seed germination under salinity levels(Uludağ Üniversitesi, 2012) Haghighi, Maryam; Afifipour, Zahra; Mozafarian, MaryamA study was conducted to evaluate the effects of Nano-Silicon (N-Si) for ameliorating negative effects of salinity on germination and growth of tomato seeds. N-Si at 2 concentrations (1 and 2 mM) and NaCl (1 and 2 mM) was studied on tomato seed germination. Germination characteristics such as germination percentage (GP), germination rate (GR), shoot and root of seedling length, fresh and dry weight of seedlings and mean germination time (MGT) were measured. Results showed the great effects of N-Si to improve salinity stress on tomato seed germination. One mM N-Si under 25 mM showed the great enhancement on germination characteristics such as germination rate, root length and dry weight. On the other hand, 2mM N-Si under 50 mM NaCl, results showed reduction on germination properties.Item Sewage sludge application in soil improved leafy vegetable growth(Uludağ Üniversitesi, 2011) Haghighi, MaryamA greenhouse experiment was conducted to investigate the effect of sludge application on growth rate of three leafy vegetable spinach, celery and lettuce. Treatment design in control and 0.7 mg/kg dry weight of soil. Results showed that sludge was highly effective in celery growth compare to spinach and lettuce and increased dry and fresh weight of celery significantly. Photosynthesis rate improved after 4 and 8 weeks in all three vegetables. Antioxidant activity showed that positive effect of sludge in availability of nutrient and prevention the stress of nutrient shortage in plants.