Kurzmitteilung Schwermetallbelastung von Olivenanlagen durch Immissionen einer Düngemittelfabrik

[No abstract available

Effect of N forms on maize yield and leaf components

A water culture experiment was established with maize to test the effect of N forms [(NH4)2SO4; CaNO3.4H 2O; urea] on yield, nitrogen (%), organic acids and sugar fractions. Plants that received NH4-N had the lowest yield. In all of the treatments total N (%) content of leaves were measured considerably high. ß-galactose was the dominating sugar fraction of all of the N treated plants and sucrose of the control. Dominating organic acids were malate in NH4-N receiving plants and cis-aconitate in NO3-N treated ones

Ursachen der Chlorosen an Mandarinen (Citrus Reticulata Blanco) der Ägäischen region

To ascertain reasons for chlorosis in madarin orchards, microelement content in leaf and soil samples from 20 representative mandarine plantages in tne Izmir-region (Turkey) have been determined. In soil samples also texture, pH and content of P, CaCO3, HCO3 - and salt was analyzed. Fe-, Zn- and Mn-contents of leaves did not help to clarify the reason for chlorosis. There was also no significant correlation between the amount of ammoniumacetate soluble microelements in the soil and the appearence of chlorosis. HCO3 - seems to be the main reason of chlorosis, because its content in most of the chlorotic plantages was raised. According to these results, improvement of the drainage system as the most important step in curing chlorosis is concluded. Spraying with Fe- and Zn-chelats are considered only as preliminary steps. © 1978 Martinus Nijhoff

Treatment of Chlorosis In Mandarine Orchards of the Aegean Region (Turkey) By Soil An Foliar Application of Different Fe-Compounds

WOS: A1985AWC150000

Environmental exposure to cadmium and lead in the pediatric age group

WOS: 000075531600009Lead additives in automotive fuel, smog from a nearby industrial center warranted an investigation on cadmium and lead in Manisa, a city of tabacco processing. Hundred and one children were screened in view of lead and cadmium exposure. In 23 children between the ages of 0-2 years the mean (+/-SEM) serum lead level was 7.15 +/- 0.10 mu g/dl, in 28 between the ages of 3-6 years was 7.20 +/- 0.10 mu g/dl and in 50 between the ages of 7-15 years was 7.20 +/- 0.10 mu g/dl, respectively, with no significant differences. Serum cadmium levels in the same groups of children was 0.066 +/- 0.008 ng/ml, 0.078 +/- 0.008 ng/ml 0.088 +/- 0.006 ng/ml, respectively. The difference in cadmium levels between the age groups of 0-2 years and 7-15 years was significant (p<0.038). This significant increase in blood cadmium level is also shown by simple linear regression analysis: Cadmium (ng/ml) = 0.049 + 0.005 (age), and p<0.0001, F Ratio = 50.578, coefficient of correlation = 0.581. Our study revealed that lead is not a serious environmental contaminant for children, yet; however, the increasing trend seen in exposure to cadmium warrants serious consideration and urgant preventive measures

Reddening of cotton (Gossypium hirsutum L.) leaves

WOS: 000174361400021Reddening of leaves is a physiological disorder in cotton induced by different abiotic stresses. Dramatic biochemical changes occurred in reddening leaves: strong accumulation of anthocyanins and drop of chlorophyll content, important increase of proline content and peroxidase activity. The lipid peroxide content indicative of membrane fragmentation was decreased. In this way a multicomponent system encompassing anthocyanins, proline, and peroxidase may act coordinately to overcome abiotic stress in cotton

Zinc-deficient sprouting blight potatoes and their possible relation with neural tube defects

PubMed ID: 15376231Maternal nutritional zinc deficiency is blamed in the pathogenesis of neural tube defects. In animal and plant domains zinc is required for growth and development. The objective of the present study was to show that sprouting blighted potato tuber is zinc deficient. In five potato varieties, zinc was measured by atomic absorption spectrophotometry in wet-ashed paired slices of edible potato tuber and in its peel, in blighted potato tuber and in its sprout. Zinc contents were measured as the mean (± SEM) and the following values were found, 0.388 ± 0.036, 0.623 ± 0.059, 0.550 ± 0.030 and 1.089 ± 0.181 mg per 100 g wet weight, respectively. In conclusion, we believe that long-term consumption of zinc-depleted, blight potato tuber by pregnant woman could be potentially teratogenic with the consequent birth of a baby with neural tube defects. Copyright © 2004 John Wiley & Sons, Ltd