Plant, Soil and Environment, 2007 (vol. 53), issue 1
Role of rock phosphate in alleviation of heavy metals stress on Fusarium oxysporum
Hasan H.A.H.
Plant Soil Environ., 2007, 53(1):1-6 | DOI: 10.17221/2288-PSE 
An endophytic fungus of soyabean (Glycine max) roots, Fusarium oxysporum, was used to study its activity under heavy metals (Cd2+, Mn2+ and Zn2+) stress and the role of rock phosphate (RP) in alleviation of the stress. F. oxysporum growth, amino acids and protein were increased by increasing RP concentration (1-6 g/l) after 8 and 14 days. Heavy metals (HM) have a stressing effect on F. oxysporum - a significant decrease of amino acids, protein and accumulation of sugar at 1mM/l follows a descending order of Cd2+ > Mn2+ > Zn2+. RP is altering...
Phytoremediation based on canola (Brassica napus L.) and Indian mustard (Brassica juncea L.) planted on spiked soil by aliquot amount of Cd, Cu, Pb, and Zn
M. Turan, A. Esringü
Plant Soil Environ., 2007, 53(1):7-15 | DOI: 10.17221/3188-PSE
The use of plants to remove heavy metals from soil (phytoremediation) is expanding due to its cost-effectiveness as compared to conventional methods and it has revealed a great potential. Since contaminants such as Pb or Cd have a limited bioavailability in the soil, methods to facilitate their transport to the shoots and roots of plants are required for successful phytoremediation. The objective of this study was to investigate the effects of addition of different rates (0, 3, 6 and 12 mmol/kg) of ethylene diaminetetraacetate (EDTA) on heavy metal availability in soils contaminated with 50 mg/kg Cd (CdCl2), 50 mg/kg Cu (CuSO4),...
The effect of simultaneous magnesium application on the biological effects of titanium
S. Kužel, P. Cígler, M. Hrubý, J. Vydra, D. Pavlíková, P. Tlustoš
Plant Soil Environ., 2007, 53(1):16-23 | DOI: 10.17221/3189-PSE
Most of the works published since the beginning of the 20th century have brought interesting results about beneficial effects of titanium (Ti) on plants, but much less is known about its phytotoxic effects at higher doses. Here we demonstrate the influence of Mg treatment on the phytotoxic effects of Ti. Mg, Ti + Mg and two different concentrations of Ti leaf sprays were applied on oats (Avena sativa L. cv. Zlaťák) grown on three different soil types (Fluvisol, Luvisol and Chernozem). Physiological parameters of oats as well as some essential elements contents were analyzed. The foliar applications of Ti caused significant toxic...
Relationship between soil organic matter lability and liming requirement in acid sandy-loam cambisols
L. Kolář, F. Klimeš, J. Gergel, M. Švecová
Plant Soil Environ., 2007, 53(1):24-32 | DOI: 10.17221/3190-PSE
It is evident that the presence of organic matters in soil considerably influences by its microbial oxidation to CO2 the requirement for calcareous compounds as well as the necessary amelioration dose of lime to reduce incurred soil acidity as the impact of balanced buffering CO2-HCO3- system, the more labile the organic matters are. If we take into consideration that the content of soil water per hectare of topsoil is, at the total weight of 6 × 106 kg, approximately, in analyzed sandy-loam soils 1.2 × 106 litre, in the given experiment soil water is just able to use up to 220 kg CaCO3/ha...
Methodological aspects in the study of species richness, diversity and homotony of grass cover
F. Klimeš, L. Kolář, J. Květ, W. Opitz Von Boberfeld, H. Laser
Plant Soil Environ., 2007, 53(1):33-41 | DOI: 10.17221/3191-PSE
This work proposes a new method for the assessment of species richness, diversity, and homotony in related vegetation relevés of grass swards. Hypothetical vegetation relevés with identical species number but differing constancy were generated to compare the techniques describing the species variety and diversity. By calculating these theoretical values in combination with data from real swards of Alopecuretum meadows, it has been shown that the determination of the constancy of particular species is essential for the evaluation of species diversity of grass swards. The relationship between the share of different combinations of vegetation...
The development of above-ground biomass in unmanaged grasslands and its influence on the leakage of water and the amount of elements found
J. Fiala
Plant Soil Environ., 2007, 53(1):42-50 | DOI: 10.17221/3192-PSE
The influence of various forms of farming on unmanaged grasslands was monitored with regard to the accumulation of the above-ground biomass (litter + mulching) and its influence on the leakage of rainfall and the amount of elements in lysimetric waters. In 2001-2005, the highest accumulation was observed in variants 1× mulched in the later term and on green fallow (on average 2.11-1.13 t of dry matter/ha). In comparison with the control site, a conclusive increase always occurred. An interannual increase of dry matter amounted to 0.4-5.2% of the total above-ground biomass. A negative correlative dependency on rainfall leakage on this material was discovered;...