Plant, Soil and Environment, 2002 (vol. 48), issue 6
Comparison of important parameters of spring and winter barley cultivated in sugar beet production area of Czech Republic
J. Špunar, K. Vaculová, M. Špunarová, Z. Nesvadba
Plant Soil Environ., 2002, 48(6):237-242 | DOI: 10.17221/4233-PSE 
Both spring and winter barley were sown after a forecrop of winter rape. Three registered model varieties of six row and two row winter barley reached in the period 1999-2001 significantly higher yield than three model varieties of spring barley. Two row spring and winter varieties produced significantly higher thousand grain weight (TGW) than six row winter barley. The resistance to diseases and lodging (correlation coefficient with resistance to powdery mildew represent 0.68**, rust 0.72*, lodging 0.61**) was the most important factor determining the yield. Resistance to rust has influenced sieving on 2.5 mm, correlation coefficient reached value...
Characteristics of important diploid and tetraploid subspecies of Dactylis from point of view of the forage crop production
V. Míka, A. Kohoutek, V. Odstrčilová
Plant Soil Environ., 2002, 48(6):243-248 | DOI: 10.17221/4234-PSE
Tetraploid ecotypes originated from Atlantic coastal region in comparison to diploids are of large growing stature, they build looser tuft (P0.95), fewer vegetative offshoots (P0.99). Their leaves are coarser (P0.99), culms are thicker (N.S.), less foliaged (P0.99), the thousand-seed-weight is higher (P0.99). They are in heading time earlier, generally more productive, the forage quality is good. From diploid subspecies, it is the ssp. aschersoniana, which adapted to the climatic condition of central Europe best and meets the requirements of herbage production....
Influence of different tillage systems on soil physical properties and crop yield
S. Husnjak, D. Filipović, S. Košutić
Plant Soil Environ., 2002, 48(6):249-254 | DOI: 10.17221/4236-PSE
An experiment with five different tillage systems and their influence on physical properties of a silty loam soil (Albic Luvisol) was carried in northwest Slavonia in the period of 1997-2000. The compared tillage systems were: 1. conventional tillage (CT), 2. reduced tillage (RT), 3. conservation tillage I (CP), 4. conservation tillage II (CM), 5. no-tillage system (NT). The crop rotation was soybean (Glycine max L.) - winter wheat (Triticum aestivum L.) - soybean - winter wheat. Differences between tillage systems in bulk density, total porosity, and water holding capacity and air capacity were not significant in winter wheat seasons....
The effect of fluridone and flurochloridone on the incidence of albinism in pea (Pisum sativum) and on the abscission of leaves of privet (Ligustrum vulgare)
Š. Klíčová, J. Šebánek, M. Hudeová, H. Vítková, H. Vlašínová
Plant Soil Environ., 2002, 48(6):255-260 | DOI: 10.17221/4237-PSE
The effect of fluridone (or flurochloridone), the inhibitor of carotenoid, chlorophyll and abscisic acid synthesis, on the abscission of Ligustrum vulgare leaves was investigated. Both forms of fluridone inhibited the abscission of petioles when they were applied as a 1.0% concentration in lanolin to the leaf blade. Fluridone was capable of inhibiting abscission even when it was applied to the petiole as late as 7 hours after the blade was cut off. Fluridone applied in lanolin to the apical part of intact pea seedlings or on the cut surface after decapitation of the epicotyl caused albinism of the stipules. The degree of albinism decreased...
Proteomic analysis of different extracts from barley grains
J. Chmelík, P. Řehulka, M. Střelcová, V. Kubáň, C. Mayrhofer, G. Allmaier
Plant Soil Environ., 2002, 48(6):261-264 | DOI: 10.17221/4239-PSE
Identification of several proteins extracted with various solvents from barley grains was performed by the proteomic strategy based on a combination of gel electrophoresis, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and bioinformatics. The mass spectrometry-based strategy designed for protein identification exhibits good sensitivity and rapid protein identification in comparison to other methods. In order to simplify the protein mixture extracted from grains, we used sequential extractions of grains with various solvents (based on modified Osborne system). Several proteins (e.g. β-amylase, B3-hordein)...
Yield evaluation of varieties from the world collection of birdsfoot trefoil (Lotus corniculatus L.)
J. Pelikán
Plant Soil Environ., 2002, 48(6):265-270 | DOI: 10.17221/4240-PSE
In field trials in 1998-2000, ten varieties of the world collection of birdsfoot trefoil (Lotus corniculatus) were evaluated for herbage and hay yields. In all the years of testing yields from three cuttings and total annual production were evaluated. In 1999, seed yield was also recorded. As a control, alfalfa (Medicago sativa) variety was included in the experiment. The test varieties showed good productivity in the first and especially in the second year of testing, most of them exceeded alfalfa in herbage yield in individual cuttings and in total productions. As for hay yield, the differences were not so great. Local varieties...
Improvement of an elutriation method for estimation of weed seedbank in the soil
V. Smutný, J. Křen
Plant Soil Environ., 2002, 48(6):271-278 | DOI: 10.17221/4242-PSE
A model experiment was conducted to compare hand extraction (elutriation) under running water and elutriation using the device Analysette 3, the two methods for estimation of weed seedbank in the soil. Technical parameters have been assessed for efficient operating of the device. We studied the time required for elutriation of soil samples and the time for collecting, counting and identifying the separated seeds. No significant difference in the effect of the used elutriation method on results of qualitative and quantitative estimation of weed seedbank densities has been found at any of the three locations differing in soil texture (silty loam, loam...
Technological quality of common buckwheat (Fagopyrum esculentum Moench.)
J. Kalinová, J. Moudrý, V. Čurn
Plant Soil Environ., 2002, 48(6):279-284 | DOI: 10.17221/4243-PSE
Seven cultivars of common buckwheat were tested in field trials under two levels of nitrogen fertilisation on two experimental sites during 1998-2000. The aim of the experiments was to evaluate the influence of cultivar, nutrition and year on main technological quality parameters (thousand achenes weight, volume weight, proportion of fractions on sieves 4.5 and 4 mm, proportion of husks and yield of groats). The differences were observed between buckwheat cultivars in all observed parameters of technological value. Nitrogen fertilisation before sowing (50 kg.ha-1) did not influence any parameter. On the contrary, buckwheat technological...