Titanium (Ti) in plant nutrition - A review

Abstract

Several studies have been carried out on the application of titanium in plant nutrition in recent decades. They indicate that this element has a positive effect on crop phenological events such as germination, root formation, vegetative growth, maturation, as well as resistance to biotic or abiotic stress conditions and general crop health status. Titanium has also been reported to boost the uptake of macro and micronutrients, enzymatic activity in plants, and consequently increase yield. Therefore, pioneering studies of foliar applications of titanium in potato crops are being carried out in Brazil. They demonstrate that titanium reduces urease enzyme activity, but increases peroxidase and nitrate reductase activity during potato growth. During tuberization, there is a positive correlation between superoxide dismutase & peroxidase enzyme activity and titanium application. Although the results are promising, more data is needed regarding the effects of this element on crop performance. This review describes the characteristics of this element and reports innovations regarding its use in plant nutrition.

Effect of Titanium Dioxide on Lettuce Plants Grown on Sandy Soil

“…On the other hand, the highest value of Ti (mg kg -1 ) in the studied sandy soil after harvesting of lettuce plant was at T 4 (75 ppm) treatment, it was 0.290(mg kg -1 ), while the lowest value was at control treatment T 1 , it was 0.00 (mg kg -1 ). These results agree with various findings obtained by Botia et al, (2002), Tlustos et al, (2005), Yang et al,(2012), Bacilieri et al, (2017) and Lyu et al,(2017).…”

“…The increase of chlorophyll a, b and total chlorophyll contents will enhance the photosynthetic efficiency and consequently increase plant growth at T 2 and T 3 treatments compared to control T 1 and T 4 treatments ( Table 4). The obtained results are in agreement with those obtained by by Botia et al, (2002), Tlustos et al, (2005) , Yang et al,(2012), Bacilieri et al, (2017) and Lyu et al,(2017).…”

“…The obtained results revealed that titanium element encouraged lettuce plant to retain more water. The present results agree with those obtained by Chao and Choi, (2005), Yang et al, (2012), Bacilieri et al, (2017) and Lyu et al, (2017). (4) show the effect of added titanium levels on chlorophyll a, b and total chlorophyll (mg g -1 F.W) of lettuce plant grown on sandy soil.…”

“…The increased uptake of NO 3 could improve plant growth and in turn enhance absorption of other ions. These results are confirmed with those of Bacilieri et al, (2017) and Lyu et al,(2017).…”

Effect of Tytanit on the dry matter and macroelement contents in potato tuber

“…Titanium is classified as a beneficial element for plant growth. Water-soluble and pHstable chelate forms of titanium such as ascorbate, citrate or malate have a beneficial effect on various physiological processes and strengthen stress tolerance, as well as increase the crop yield and can also improve the crop quality (Du et al, 2010;Bacilieri et al, 2017;Lyu et al, 2017). Although titanium stimulates the plants at low concentration, it is phytotoxic at higher concentrations.…”