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Seed treatment with "Trisol" stimulative products– seed germination impact
Šerá, Božena ; Hájková, M.
The seeds of barley (Hordeum vulgare L. RESPEKT) have been tested for stimulation effect of preparations originated in the BEIDEA company. Growth experiments were performed in sandy substrate, with 2 cm and 4 cm sowing, and under controlled conditions. Seed development, growth and dry weight of under- and aboveground seedlings were monitored. All preparations had a positive effect on the seed development and growth. Growth stimulatory effect is discussed in the text.
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Contribution to the plasticity of barnyardgrass (Echinochloa crus-galli (L.) PB) in the saltI contamined soil
Šerá, Božena ; Gajdová, Iveta ; Nováková, Markéta
Barnyardgrass (Echinochloa crus - galli (L.) PB) is one of the major weeds, growing especially in the warmer parts of our country. This species was repeatedly found about different types of communications during a research of vegetation along roads and highways. Probably, the species has wide niche that allows it to exist even in adverse conditions, e.g. salt-contaminated area along roads. The aim of the study was to confirm that barnyardgrass can grow successfully in the salted substrate and how concentration of NaCl may inhibit its growth. Growing tests were carried out in a cultivate room on young plants which were grown in standard soil substrate with added sodium chloride (NaCl: 0.00 %, 0.12 %, 0.25%, 0.50%, 0.99 %, 1.96 %). The study found a successful growth of under- and aboveground biomass in substrates with lower concentrations of NaCl (to 0.50 %). In the substrate from concentration of 0.99 % a significant decrease of dry biomass and production of both under- and aboveground organs were found. Plant growth under different salinity stress is discussed in more detail in the text.
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Response of Poppy Seed on Non-thermal Plasma Treatment
Kuchtová, P. ; Šerá, Božena ; Hájková, M. ; Kazda, J. ; Dvořák, P. ; Gavril, B. ; Šerý, M. ; Miča, L. ; Hnatiuc, E. ; Špatenka, P.
The effect of treatment of low temperature atmospheric plasma generated between the electrodes (plasma type: GlidArc, time of exposition: 180 s) on the seeds germination, crop parameters and yield components of poppy seed (Papaver somniferum L., cultivars Major and Orfeus) was observed. Increased germination was observed in 3 of the 4 treated seed samples in comparison with the control sample. The number of growing plants was negatively influenced as well as yield. Cultivar Orpheus responded more sensitively to the plasma treatment than cultivar Major. A higher number of capsules harvested per plant was founded in 3 of the 4 field variants.
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The influence of ecological conditions, management and stand botanical composition on growth of slender speedwell (Veronica filiformis Smith) in grasslands
Kobes, M. ; Šerá, Božena ; Novotná, R. ; Gajdová, Iveta
Slender speedwell (Veronica filiformis) is a non-native and invasive species of grassland. The aim of the study was to test the ability of the Slender speedwell growth in differently managed grasslands (mowing, mulching, grazing). After a two-year experiment, a statistically significant influence on the management application among growth of Slender speedwell was found (F = 14.462, p <0.001). The best survival was found in one-year mulched vegetation (dominant Deschampsia caespitosa) in the Zhůří plot and in hay and pasture crops in the V. Chuchelec plot (dominant Festuca pratensis, Lolium perenne, Trisetum flavescens, Poa pratensis, Dactylis glomerata and Phleum pratense). Slender speedwell can be well applied in permanent grasslands higher, colder and wetter conditions with management as mowing, grazing or mulching.
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Seed treatment with new stimulative products – seed germination impact
Šerá, Božena ; Hájková, M.
The seeds of conventional crops have been tested for stimulation effect of a new technological generation of preparations originated in the company of TRISOL. Germination and growth experiments were performed in standard laboratory conditions. Seed germination, growth and dry weight of seedlings for winter wheat, spring barley and poppy seed were monitored. All preparations under development had a positive effect on the seed germination. Growth stimulatory effect was observed above all in poppy seed.
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How interpret the „root /shoot“ ratio in the practice
Šerá, Božena
Ratio between weight of underground and aboveground body plant biomass is called as RW:SW. It is one of the most important characteristics of production biology but of agriculture and forest too. RW:SW ratio is geneticaly given by species. It changes during the onthogenetical development of the plant and according to relations with variability of an environmental space and stresses.
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Regenerative ability of slender speedwell (Veronica filiformis SM.)
Šerá, Božena
The experiment was focused on clonal development of Slender speedwell (Veronica filiformis Sm.) from small cutting stems without using of stimulative agents. Short stems from four various part of aboveground body were cultivated: main terminal part, secondary terminal part, small nodes, and big nodes. All different vegetative parts were able to produce roots, take roots in soil substrate and in semi-natural meadow, survive winter, and make flower. The species was more successful in company with these meadow plants: Lotus corniculatus, Medicago lupulina, Achillea millefolium, Plantago lanceolata, Taraxacum sect. Ruderalia, Trifolium repens and Crepis biennis. The best growth was confirmed for both of main and lateral terminal parts. These terminal segments had the greatest number of survived individuals, flowering stem, and weigh of dried parts.
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The influence of foliar inoculation with pathogens Leptoshaeria maculans and Leptoshaeria biglobosa on the health condition and the yield of winter oilseed rape
Plachká, E. ; Macháčková, I. ; Poslušná, J. ; Šerá, Božena
The aim of the work was to verify the influence of foliar inoculation of winter oilseed rape by pathogens Leptosphaeria maculans and L. biglobosa, causing the phoma stem canker. In the spring of 2011 field screening tests were established on two localities in Opava and Chlumec nad Cidlinou to verify the methodological procedure. Field tests were established at four localities: Opava, Chlumec nad Cidlinou, Šumperk and Kujavy during the vegetation period of 2011/2012. We followed 13 materials of winter oilseed rape in two variants: untreated control and inoculated plots with L. maculans and L. biglobosa. Health condition of rape plants was evaluated according to the ÚKZÚZ methodology for testing of the utility value of rape varieties and the EPPO methodology for determination of fungi effectiveness. In the first year we found the significant higher incidence of disease and yield on the untreated control. In the second year the differences between inoculated and control plots were low. The significant differences in infestation and yield values among selected localities were found
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