Plant, Soil and Environment, 2005 (vol. 51), issue 9

The influence of mycorrhizal fungi (Glomus sp.) on field pea plant survival and growthin drought caused stress conditions

S. Kristek, A. Kristek, H. Pavlović

Plant Soil Environ., 2005, 51(9):385-389 | DOI: 10.17221/3601-PSE  

The influence of mycorrhizal fungi on field pea green mass yield, dry matter yield, grain yield, number of pods per plant, number of grains per pod, average number of plants per m2, grain concentration of nitrogen, phosphorus and potassium were studied in the greenhouse during two investigative years. The best results with all parameters were obtained in both investigative years by seed inoculation with the mycorrhizal species G. mossae. The exceptions were mean green mass yield, dry matter yield and the number of grains per pod in the second investigation year (irrigation rate - 240 mm/m2) where better results were achieved...

Genotype and environmental interaction of certain indices of dormancy in winter wheat

A. Binek, M. Moś

Plant Soil Environ., 2005, 51(9):390-396 | DOI: 10.17221/3602-PSE  

On the basis of five statistical parameters the stability of three dormancy indices, i.e. germinability, germination rate and dormancy index, has been determined 10 days after harvest at temperatures of 25°C. The object of the research included seeds of 12 winter wheat cultivars harvested in the years 1997-2003. In spite of significant genotype x environmental interactions accounting for 23.8-50.6% of the total variation, a significant differentiation between all the indices was found. Among the investigated cultivars a low level of dormancy was observed in the cultivars Wanda, Juma and Begra (germinability 83-92%, dormancy index 7.7-9.5), while evident...

The effect of ecological growing on the potatoes yield and quality

K. Hamouz, J. Lachman, P. Dvořák, V. Pivec

Plant Soil Environ., 2005, 51(9):397-402 | DOI: 10.17221/3603-PSE  

In the years 1995-1997 the effect of ecological growing on the yield and selected parameters of quality of consumer potatoes (in comparison with conventional way) were investigated. The ecological way of growing differed in the lack of chemical protection against diseases and pests and industrial fertilizers. Field trials were realised with seven varieties (Impala, Karin, Agria, Korela, Rosella, Santé and Ornella) on two sites (Uhříněves and Valečov). The ecological way of growing had markedly negative effect on the yield (decrease by 36%). In qualitative parameters the ecological way increased inconclusively polyphenol content (by 10.2%), decreased...

The implication of seed treatment of winter oilseed rape

J. Kazda, P. Baranyk, D. Nerad

Plant Soil Environ., 2005, 51(9):403-409 | DOI: 10.17221/3604-PSE  

Small plot trials studying the impact of different seed treatments on the occurrence of pests and diseases in autumn were carried out during 2000-2003. The aim was to verify the efficiency of different fungicidal and insecticidal oilseed rape seed treatments and to determine the economical effectiveness of this method of protection. The following insecticidal seed treatments were used: Promet 400 CS (furathiocarb), Cosmos 500 FS (fipronil), Chinook 200 FS (imidacloprid & beta-cyfluthrin) and Marshal ST (carbosulfan). The seed treatment Chinook 200 FS in combination with newly developed fungicidal compound was also assessed. The most effective treatment...

Changes in the zinc content in the meadow sward under conditions of a long-term static fertilizer experiment (Czarny Potok)

M. Kopeć

Plant Soil Environ., 2005, 51(9):410-415 | DOI: 10.17221/3605-PSE  

Changes in the zinc content in the meadow sward were studied in a long-term fertiliser experiment set up on a mountain meadow (20°54'E, 49°24'N) in 1968. The experiment is localized at 720 meters above sea level on the soil which belongs to Dystric Cambisols and comprises 8 fertiliser treatments in two series: 0Ca and + Ca (Table 1). In the course of the experiment the Zn content in the sward decreased and the time factor was of greater consequence than fertilization, P content in the sward or soil and acidification. In mountain meadow communities shaped by a long-term (over 30 years) NPK treatment and at yields between 6.7 and 7.1 t/ha the annual...

15N natural abundances in two podsol soils of two spruce forests differing in their atmospheric N deposition conditions

S.P. Sah

Plant Soil Environ., 2005, 51(9):416-422 | DOI: 10.17221/3606-PSE  

This study aims to investigate the changes in isotope ratios in foliage and soils of the two spruce forests [Picea abies (L.) Karst.] differing greatly in their atmospheric N deposition and climatic conditions. As expected, both N concentrations and 15N values in both needles and litter were found to be significantly higher in the Solling stand (N-saturated) compared to the Hyytialä stand (N-poor). For the N-limited site (Hyytialä plot), a typical vertical gradient of the soil 15N-enrichment (both in organic and mineral soil) was observed. The N-saturated site (Solling) differs from the N-limited site (Hyytialä)...

Productivity of willow coppice plants grown in short rotations

S. Szczukowski, M. Stolarski, J. Tworkowski, J. Przyborowski, A. Klasa

Plant Soil Environ., 2005, 51(9):423-430 | DOI: 10.17221/3607-PSE  

In the paper yield of dry matter and some morphological features of four fast growing willow coppice genotypes harvested in one, two, three and four years harvesting cycles are presented. In the experiment an average yield amounted to 16.79 t/ha/year. The highest yield was recorded for Salix viminalis × S. viminalis lanceolata (22.89 t/ha/year). Genotype Salix triandra gave a yield lower by factor 3 compared to Salix viminalis × S. viminalis lanceolata. For the following genotypes: Salix viminalis × S. viminalis lanceolata, Salix viminalis var. gigantea and Salix viminalis...