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Effect of titanium nano particles and different irrigation levels on photosynthetic pigments, proline, soluble carbohydrates and growth parameters of Purslane


Sartip h. | SIROUSMEHR A.R.


 Start Page 79 | End Page 90


 Soil moisture deficiency is the most important factors of plant growth and development inhibiting. To evaluate the effect of foliar application of titanium dioxide nano particles on Purslane some physiological and morphological traits under different irrigation levels was done a factorial experiment in a completely randomized design with three replications. Experimental factors were including of three levels irrigation 60, 80 and 100 percent of field capacity and sprayed titanium dioxide nano particles in the 6-8 leaf stage at four levels 0, 1, 2 and 3 mg. l-1, respectively. The result showed that irrigation levels was significant in all traits in 1 percent level and it cause to reduce the total chlorophyll content and increase the amount of soluble carbohydrates and proline. The maximum amount of total chlorophyll content 32. 36 mg. g-1 of fresh leaf was obtained in treatment of 100 percent of field capacity and lowest amount it 13. 42 mg. g-1 of fresh leaf was obtained in treatment of 60 percent of field capacity, respectively. Sprayed of titanium dioxide nano particles was also significant on the most traits and increases the total chlorophyll and fresh and dry weight of Purslane. The maximum amount of the fresh weight of shrub 21. 61 g in the 3 mg. l-1 sprayed of titanium dioxide nano particles treatment and the minimum fresh weight 17. 16 g was obtained control treatment (spraying with distilled water). The results showed the use of nanoparticles of titanium dioxide, increased significantly chlorophyll (a) and dry weight the purslane.


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