Plant, Soil and Environment, 2008 (vol. 54), issue 9
Growth, water status and nutrient accumulation of seedlings of Holoptelea integrifolia (Roxb.) Planch in response to soil salinity
A.D. Patel, A.N. Pandey
Plant Soil Environ., 2008, 54(9):367-373 | DOI: 10.17221/407-PSE 
Greenhouse experiments were conducted to assess the effects of soil salinity on emergence, growth, water status, proline content and mineral accumulation of seedlings of Holoptelea integrifolia (Roxb.) Planch (Ulmaceae). NaCl was added to the soil and salinity was maintained at 0.3, 3.9, 6.0, 7.9, 10.0, 12.1 and 13.9 dS/m. Salinity caused reduction in water potential of tissues, which resulted in internal water deficit to plants. Consequently, seedling growth significantly decreased with increase in soil salinity. Proline content in tissues increased with increase in soil salinity. There were no effective mechanisms to control net uptake...
Effects of salt stress on growth, antioxidant enzyme and phenylalanine ammonia-lyase activities in Jatropha curcas L. seedlings
S. Gao, C. Ouyang, S. Wang, Y. Xu, L. Tang, F. Chen
Plant Soil Environ., 2008, 54(9):374-381 | DOI: 10.17221/410-PSE
The effects of increasing NaCl concentrations on biomass, superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and phenylalanine ammonia-lyase (PAL) in Jatropha curcas L. seedlings were investigated. The fresh weights of cotyledons and radicles with increasing NaCl concentrations decreased progressively, and the fresh weight of hypocotyls reached the lowest level at NaCl concentration of 150 mmol and then increased. SOD activity in the cotyledons, hypocotyls and radicles increased gradually up to NaCl concentrations of 150, 200 and 150 mmol, respectively. The highest POD activities in the cotyledons, hypocotyls and radicles were observed...
Halopriming improves vigor, metabolism of reserves and ionic contents in wheat seedlings under salt stress
I. Afzal, S. Rauf, S.M.A. Basra, G. Murtaza
Plant Soil Environ., 2008, 54(9):382-388 | DOI: 10.17221/408-PSE
The present study was conducted to investigate whether salt tolerance may be induced in wheat at germination stage by halopriming with different inorganic salts (CaCl2, NaCl and CaSO4), and how far these salts affect the mobilization of different nutrients to different parts of seedlings. Seeds of two wheat cultivars (Inqlab-91 and SARC-1) were primed in 50 mmol solutions of CaCl2, NaCl or CaSO4 for 12 h separately and germinated under non-saline and saline (125 mmol NaCl) conditions. All seed treatments hastened germination under saline and non-saline conditions as compared to those of non-primed seeds....
Evaluating of phosphorus quantity/intensity parameters in soil with different systems of organic fertilizing
M. Kulhánek, J. Balík, J. Černý, K. Schweitzer, V. Vaněk, M. Prášilová
Plant Soil Environ., 2008, 54(9):389-394 | DOI: 10.17221/406-PSE
One of the refinement methods for estimating the parameters of phosphorus dynamics in soil is the construction of sorption isotherms in dependence on changes of exchangeable sorbed phosphorus in soil (ΔQ) and changes of phosphorus amount in soil solution (ΔI). Regression analysis allows to calculate equilibrium concentration (cequ) and phosphorus buffering capacity (BC). The mentioned analyses were realised on soils from the long-term field experiments of the Czech University of Life Sciences (CULS) in Prague and Crop Research Institute (CRI) in Ruzyně, Czech Republic. The influence of different organic fertilisers compared...
The content of Fusarium mycotoxins, grain yield and quality of winter wheat cultivars under organic and conventional cropping systems
M. Váňová, K. Klem, P. Míša, P. Matušinsky, J. Hajšlová, K. Lancová
Plant Soil Environ., 2008, 54(9):395-402 | DOI: 10.17221/411-PSE
Nine cultivars of winter wheat were compared in organic and conventional crop rotation systems. Bread-making quality was evaluated using three parameters [thousand-kernel weight (TKW) in g, volume weight in g/l, protein content in %]. Grain yield, TKW and protein content of winter wheat in organic cropping system were significantly lower as compared to any intensity in conventional cropping system. However, clover as a preceding crop to winter wheat in organic crop rotation ensured a sufficient amount of nitrogen for grain yield, which was 6.72 t/ha on average of the three years. The requirement of the Czech national standard for bread wheat minimum...
Individual and combined phytotoxic effects of cadmium, lead and arsenic on soybean in Phaeozem
Z.Q. Luan, H.C. Cao, B.X. Yan
Plant Soil Environ., 2008, 54(9):403-411 | DOI: 10.17221/409-PSE
Acute laboratory toxicity tests were carried out to assess the individual and combined toxic effects of metals including cadmium (Cd), lead (Pb) and the metalloid arsenic (As) in Phaeozem on the seed germination and seedling growth of soybean, Glycine max Seeds were exposed to varied concentrations of Cd, Pb and As individually and in mixtures including Cd + Pb, Cd + As, Pb + As and Cd + Pb + As. The sum of toxic units (TU) for medium effective concentration of the mixture (EC50mix) was calculated based on the dose (TU-based)-response relationship using the Trimmed Spearman-Karber method. Binary metal combinations of Cd + Pb,...