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Shams, A. (2014). EFFECTS OF NANOANATASE TIO2 ON GROWTH AND NITRATE ACCUMULATION OF LETTUCE. Journal of Plant Production, 5(5), 765-771. doi: 10.21608/jpp.2014.53901
A. S. Shams. "EFFECTS OF NANOANATASE TIO2 ON GROWTH AND NITRATE ACCUMULATION OF LETTUCE". Journal of Plant Production, 5, 5, 2014, 765-771. doi: 10.21608/jpp.2014.53901
Shams, A. (2014). 'EFFECTS OF NANOANATASE TIO2 ON GROWTH AND NITRATE ACCUMULATION OF LETTUCE', Journal of Plant Production, 5(5), pp. 765-771. doi: 10.21608/jpp.2014.53901
Shams, A. EFFECTS OF NANOANATASE TIO2 ON GROWTH AND NITRATE ACCUMULATION OF LETTUCE. Journal of Plant Production, 2014; 5(5): 765-771. doi: 10.21608/jpp.2014.53901

EFFECTS OF NANOANATASE TIO2 ON GROWTH AND NITRATE ACCUMULATION OF LETTUCE

Article 2, Volume 5, Issue 5, May 2014, Page 765-771  XML PDF (546.57 K)
Document Type: Original Article
DOI: 10.21608/jpp.2014.53901
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Author
A. S. Shams email
Department of Horticulture, Faculty of Agriculture, Benha University, Egypt
Abstract
Two field experiments were carried out at the experimental Farm of the Faculty of Agriculture, Moshtohor, Benha university, Qalubiya Governorate, Egypt during the two successive seasons of 2010/2011 and 2011/2012, to study the effect of foliar application with bulk or nano-titanium dioxide (TiO2 <10 nm) with three levels (0.01, 0.02 and 0.03 %) on the growth and nitrate content of lettuce (Lactuca sativa var. capitata cv. Great lakes)
As a photocatalyst, nano-TiO2 under light could cause an oxidation–reduction reaction. The nano-TiO2 treatments have obvious effects on the improvement of growth and development in lettuce; however, bulk TiO2 treatments have only little effects.
It was demonstrated that nanoanatase TiO2 (0.03%) could greatly improve growth (fresh and dry weight) and pigments of photosynthesis (β-carotene, chlorophyll a and b) of lettuce. The results also, showed that TiO2 nano particles (0.03%) recorded the highest total yield (16.434 ton fed-1) and the lowest content of nitrate in lettuce leaves (182.5 µg g-1 DW) as an average in both seasons.
Nano-anatase TiO2 treatment could enhance growth, photosynthesis efficiency, activities of nitrate reductase and consequently decrease nitrate content in lettuce plants.
Keywords
lettuce; Nano particles; Titanium dioxide; Nitrate accumulation
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