Relation of Chelated Iron (EDDHA-Fe) Applications with Iron Accumulation and Some Plant Nutrient Elements in Basil (<i>Ocimum basilicum</i> L.)

Abstract

In this study, the capability of the basil (Ocimum basilicum L.) plant as hyper accumulator in remediation of polluted soils was investigated. The study was carried out as pot trials under controlled conditions. Increasing concentrations of EDDHA-Fe (0 mgkg -1 , 25 mgkg -1 , 50 mgkg -1 , 150 mgkg -1 , 250 mgkg -1 ) were applied. The basil seedlings germinated in viols were acclimated into pots in triplicates and harvested 2 months later. The agro-morphological traits, Fe accumulation in plants and plant nutritional elements were analysed. The basil plant was found to accumulate Fe in its body in the presence of toxic levels of Fe metal and Fe was found to be antagonistic with micro nutritional elements. The plant fresh and dry weights and plant height were found to be statistically significant at 50 mgkg -1 EDDHA-Fe application, and beyond this concentration, these values decreased. The Mg content, which is the central atom in chlorophyll, was found to be the highest at the mentioned concentration. SPAD values showed a parallel change, too. The basil plant was shown to be a hyperaccumulator in terms of remediation of the Fe metal, which is both a nutritional element and a heavy metal. Moreover, Fe fertilization of 50 mgkg -1 was shown to be sufficient for basil cultivation as a medicinal plant. This result was found to be statistically significant at α = 0.05.

An Investigation of the Correlation of Antibacterial Activity of Thyme (Thymus vulgaris L.) with its Nutrient Elements

“…The soil in Thrace Region of Turkey, where the university resides, is, however, usually acidic soil [17]. The soil in this study was also slightly acidic with pH 6.4 [14]. The acidity in soil increases the plant availability of the micro nutrient elements mentioned in this study.…”

“…The soil characteristics were as follows: The pH of the soil was 6.45, the content of available P2O5 was 36.2 mg/kg and exchangeable K2O 225.18 mg/kg. Moreover, the organic matter concentration was 1.91% [12,14]. No fertilizers and pesticides were used during the experiment.…”

Biofortification and Quality of Collard Greens as a Function of Iron Concentration in Nutrient Solution

“…Ghasemi-Fasaei and Ronaghi [31] observed in wheat a 21% reduction in Mn absorption when 8 mg kg −1 of Fe was added to the soil in the form of Fe-EDDHA. Adilo glu [32] evaluated five concentrations of Fe-EDDHA on basil and observed a reduction in these micronutrients from concentrations of 50 mg kg −1 , with an antagonistic effect on Fe.…”

The Growth of Biofortified Mustard Green Plants with Iron and Zinc through Foliar Spray

“…However, in biofortification with an agronomic approach it is also necessary to evaluate plant growth to see the growth response of mustard greens that sprayed with Fe and Zn due to several studies, the excessive effects of Fe and Zn have an impact on plant growth. For instance, basil plants given more than 50 mg/kg of Fe showed a decrease in growth parameters such as plant height, leaf count, fresh weight, and dry weight of the plants [13]. A decrease in fresh weight and dry weight of the plants also occurred in arugula and red mustard plants given more than 10 mg/L of Fe [5].…”