Plant, Soil and Environment, 2010 (vol. 56), issue 3
Effect of growing conditions on starch and protein content in triticale grain and amylose content in starch
I. Burešová, I. Sedláčková, O. Faměra, J. Lipavský
Plant Soil Environ., 2010, 56(3):99-104 | DOI: 10.17221/123/2009-PSE 
The effect of growing conditions on starch and protein content in triticale grain and amylose content in starch was studied on winter triticale cvs. Kitaro, Lupus, Lamberto and Ticino harvested in 2006 and 2007 in Humpolec and Pernolec, Czech Republic. Dry matter of the investigated triticale grain contained 62.4-70.9% of starch. The starch content and amylose content in starch were significantly affected by cultivar and year. Statistical analysis did not confirm that starch content and amylose content in starch were significantly influenced by growing variant or location. The protein content was significantly affected only by year. The differences...
Influence of tillage system and starting N fertilization on seed yield and quality of soybean Glycine max (L.) Merrill
P. Fecák, D. Šariková, I. Černý
Plant Soil Environ., 2010, 56(3):105-110 | DOI: 10.17221/201/2009-PSE
This field polyfactorial trial with soybean was performed on gleyey alluvial soil in 2006-2008. Three tillage systems: conventional, reduced (spring shallow cultivation to a depth of 100 mm followed by drilling), no-tillage and two doses of starting N: 50 kg N/ha, 25 kg N/ha were tested in this trial. The trial was organized in a complete randomized block design with four replicates. All data were subjected to ANOVA, LSD method and regression analysis using Statgraphics. Seed yield was highly significantly (P ≤ 0.01) affected by weather conditions. Weather was the most dominant factor that influenced seed yield. The highest average yield...
Effect of provenance and ploidity of red clover varieties on productivity, persistence and growth pattern in mixture with grasses
S. Hejduk, P. Knot
Plant Soil Environ., 2010, 56(3):111-119 | DOI: 10.17221/164/2009-PSE
In temporary and permanent grasslands, red clover distinctly increases herbage quality and production at low fertilization requirements. Main disadvantage of this species is its insufficient persistence. There are considerable differences in persistence among varieties, which are connected with different adaptability and disease resistance. In this experiment, we assessed the production of dry forage, number of plants and growth differences in eight tetraploid and fourteen diploid varieties grown in mixture with grasses. The highest production of forage for both harvest years was achieved by Czech varieties Spurt and Amos and by Swiss variety Milvus....
Humus characteristics after maize residues degradation in soil amended with different copper concentrations
J.J. Zhang, L.B. Wang, C.L. Li
Plant Soil Environ., 2010, 56(3):120-124 | DOI: 10.17221/218/2009-PSE
Crop residues humification is an important process in nutrient cycling in agroecosystems. A preliminary laboratory incubation experiment of 180 days was conducted to evaluate the quantitative and qualitative characteristics of humic fractions formed during the humification process of maize residues in soil amended with different copper (Cu) concentrations. The Cu concentrations tested were 0, 50, 100, 200, 400, 600, 800, and 1000 mg Cu/kg dry soil. Results showed that the carbon content of humic fractions, i.e. humic acid (HA) and fulvic acid (FA), increased with the increase of Cu concentrations; the exception was carbon content of HA that initially...
The contents of amino acids and sterols in maize plants growing under different nitrogen conditions
M. Pavlík, D. Pavlíková, J. Balík, M. Neuberg
Plant Soil Environ., 2010, 56(3):125-132 | DOI: 10.17221/214/2009-PSE
The effect of nitrogen nutrition on phytosterol and amino acid content in aboveground biomass of maize (Zea mays L.) was investigated in a pot experiment. For cultivation of maize plants nitrogen dose (2 or 4 g N/pot) was applied in the form of ammonium nitrate (AN) for control treatments or urea ammonium nitrate solution (UAN). UAN solution was applied according to the CULTAN method (Controlled Uptake Long Term Ammonium Nutrition). The content of amino acids as important nitrogen-containing compounds in plant biomass was affected by nitrogen nutrition. An increase of glutamine and asparagine levels in maize aboveground biomass was observed...
A molecular evidence for the presence of methylobacterial-type Fe siderophore receptor in Celosia cristata
A. Gholizadeh, B.B. Kohnehrouz
Plant Soil Environ., 2010, 56(3):133-138 | DOI: 10.17221/194/2009-PSE
The presence of efficient iron-uptake bacteria was predicted to be localized as endosymbionts within the leaves of Celosia cristata, a well known iron-rich plant. On the other hand, the symbiotic methylobacterium having a distinctive pink pigmentation was suggested to be more likely in the leaves of pink-colored plants. These considerations were experimented by priming a cDNA fragment containing methylobacterial-type Fe siderophore receptor domain from Celosia leaf cDNA population. Since no detectable homologue was found in plant species sequenced to date, the presence of a Fe-efficient methylobacterium endosymbiosis was reliably predicted...
Influence of mercury on chlorophyll content in winter wheat and mercury bioaccumulation
D. Liu, X. Wang, Z. Chen, H. Xu, Y. Wang
Plant Soil Environ., 2010, 56(3):139-143 | DOI: 10.17221/210/2009-PSE
Mercury (Hg) is one of the major pollutants in soils because of the annual import of toxic Hg into the agricultural lands. The aims of the present studies are to investigate the effect of Hg on chlorophyll content in winter wheat var. jinan No. 17. Moreover, calcium (Ca) levels and bioaccumulation of Hg in wheat leaves were studied with the technique of inductively coupled plasma sector field mass spectrometer (ICP-SF-MS). The study conducted a range of Hg concentrations from 0~500 mg Hg/kg in the dry weight soil. The soil was artificially contaminated with Hg as follows: 0, 100, 200, and 500 mg Hg/kg as HgCl2. At early stages of the wheat...
State and evaluation of information and communication technologies development in agricultural enterprises in the Czech Republic
J. Vaněk, E. Červenková, J. Jarolímek, P. Šimek
Plant Soil Environ., 2010, 56(3):144-147 | DOI: 10.17221/212/2009-PSE
The paper presents selected information on the newest results of a wide investigation of the state of information and communication technologies development in agricultural production enterprises in the Czech Republic. The investigation was realized in the first half of 2009 with the main aim to analyze development of information infrastructure and actual trends in ICT use in rural regions where most entrepreneurial subjects operate. Besides a presentation of own research results, some obtained pieces of knowledge are then commented and eventually discussed in connection with official outputs of the Czech Statistical Office (CSO), if they have a certain...