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H. Czyż,
T. Kitczak
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Wpływ nawożenia mineralnego NPK na plon nasion Dactylis glomerata L. odmiany Minora
The effect of NPK fertilization on seed yield of Dactylis glomerata L. cv. Minora
Abstract. Planting of Dactylis glomerata cv. Minora for seeds on light soil with a companion crop of spring barley, seed yield was obtained, on average, 6.86 dt ha-1 in the first year of harvest (2011) and 4.99 dt ha-1 in the second year of harvest (2012). The results, presenting the changes of plant density in the years of seeds harvest, the biometric features of plants (number of generative shoots, inflorescence length, number of spikelets and seeds per inflorescence) as well as yield of seeds and straw, indicated a positive effect of mineral fertilization and the most favorable dose was: 120 kg N, 80 kg P and 180 kg K per hectare.
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B. Golińska,
P. Goliński
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Wpływ wiosennego przykaszania roślin i stosowania regulatorów wzrostu na plonowanie Trifolium repens w uprawie na nasiona
Effect of cutting plants in spring and application of plant growth regulators on Trifolium repens yield grown for seeds
Abstract. Field experiment was conducted in 2002-2004 in Dusina Plant Breeding Station to investigate the influence of spring plant cutting and application of selected plant growth regulators (PRGs) on seed yield of white clover cvs. Aura and Wota in the first and second years of utilization. The two-factorial experiment was established as a random block design on plots of 15.5 m2 in four repetitions. The following parameters were analysed: morphological features of leaves, seed yield and its structure and seed quality. PRGs – B-Nine 85 SP (daminozide) and Cycocel 460 SL (chlormequat chloride) – were found to be the most effective. Its application in the first and second years of utilization was found to increase seed yield of both cultivars. The observed yield increase was the result of higher inflorescences density per 1 m2 and higher number of pods per head. |
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P. Kacorzyk,
M. Kasperczyk
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Możliwość wykorzystania tras narciarskich w gospodarce pastwiskowej
The possibilities of ski slopes utilization in grazing management
Abstract. The study was conducted on two ski slopes situated on Jaworzyna Krynicka Mountain. One of them is located on south-east and the other on the eastern location. During the modernization of the slopes grasses and legumes mixture was seeded in three points on each of them. In the second year after sowing slopes were grazing by sheep 3 times. At the same time the floristic composition of the sward, sodding and yielding were estimated. Sown grasses as red fescue and tall fescue were present on all points in similar quantities. However, their participation in the coverage area was about 1/3 and smaller than the share of their seeds in the mixture. The share of sown perennial ryegrass and white clover in favourable habitats was similar to the share of seeds in the mixture. Evaluated ski slopes areas in the research points were characterized by good sodding and were classified as good pasture for sheep. |
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A. Klarzyńska,
A. Kryszak
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Trawy w procesie kolonizowania nieużytkowanych linii kolejowych w Wielkopolsce
Grasses in the process of colonizing the unexploited railway lines in Wielkopolska
Abstract. The paper presents the results of the research on the speed and level of colonization of the unexploited railway lines by grasses. Railways tracks are an inseparable element of the human-shaped environments. These areas have specific ecological-edafical conditions and only plants of wide ecological amplitude are able to get control over them. Among grasses there is a significant number of species whose biological properties, resistance to environmental stresses and ability to survive in extreme conditions let them overrun and turf difficult terrains. These are mostly species which root deeply, creep, form a large number of diasporas and are often connected with significantly drying habitats, such as Arrhenatherum elatius, Dactylis glomerata, Festuca ovina, Festuca rubra and Poa pratensis, which grow relatively fast within peatlands. The expansion of grasses typical to ecosystems crossed by railway tracks were also identified in these areas e.g. Melica nutans, Poa nemoralis in forestry areas, Phragmites australis, Bromus inermis on wetlands and Apera spica-venti, Bromus secalinus, Echinochloa crus-galli or Setaria viridis on agricultural terrains. However, these taxons appeared usually single with a minor share. Total number of grasses was 31. |
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S. Kozłowski,
T. Kubiak,
A. Swędrzyński
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Zmienność w występowaniu barwników chlorofilowych w blaszkach liściowych Phragmites australis (Cav.) Trin. ex Steud.
Variability of chlorophyll dyes occurrence in leaf blades of Phragmites australis (Cav.) Trin. ex Steud.
Abstract. So far, Phragmites australis was omitted in exploration of chlorophyll dyes content in grasses. Elimination of this gap was the aim of this research. Works was carried out during growing season in 2013. Object of the research was reed from 8 reservoirs, in different sizes, located in western part of Poland. Plants were overgrown periphery of water basins, along the shoreline, and communities can be classified as Phragmitetum australis. Studies consisted of systematic, during the growing season – monthly, analysis of chlorophyll dyes presence in leaf blades. Obtained results bring significant value in biological characteristics of this species.
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A. Kryszak,
Ł. Maćkowiak,
A. Klarzyńska,
N. Szczepańska,
J. Kryszak
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Zmienność pokrycia traw w runie wybranych typów lasów w sezonie wegetacyjnym
Fluctuation in grasses cover during the growing season in some types of forests
Abstract. The paper shows the results of the occurrence of grass species and the determination of the reasons of changing their participation in the undergrowth during the growing season. The obtained results showed that the stand structure constituting ecological factors, especially the amount of light reaching to the bottom of the forest determines the changing participation of grass species. These relations were particularly confirmed for Deschampsia flexuosa, Arrhenatherum elatius and Poa nemoralis. |
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T. Kubiak,
S. Kozłowski
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Dynamika zmian potencjału plonotwórczego Phragmites australis (Cav.) Trin. ex Steud. na tle jej właściwości biologicznych
Dynamics changes of Phragmites australis (Cav.) Trin. ex Steud. yielding potential against biological properties of this plant
Abstract. Phragmites australis fulfils multiple, very favourable environmental and economic functions. High yielding potential of this plant makes, that recently, Phragmites australis raises interest as energy grass. It’s important to clear understanding of common reed biological properties for each sphere of utilization. Recognition of yielding dynamics in reference of biological properties is especially valuable and interesting. This task is aim of this study. Evaluation of yielding potential was based in terms of generative shoots height changes and intensity of shoots formation changes in water basins.
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M. Kulik,
R. Baryła,
J. Sawicki
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Zawartość składników pokarmowych w wybranych gatunkach ziół i chwastów oraz ich wpływ na wartość runi pastwiskowej
The nutrient content of selected species of herbs and weeds and their effect on the value of pasture sward
Abstract. The aim of the paper is to estimate the nutrient content of selected species of herbs and weeds and their effect on the value of the sward grazing by cattle. The biomass of the analyzed species of herbs and weeds was characterized by a lower content of nitrogen as well as higher content of magnesium in comparison to biomass of grass-legume mixtures and grass monocultures. This group of plant species increases content of the ash component in the fodder, especially magnesium. High content of phosphorus, potassium and calcium in the biomass of Conyza canadensis, calcium and magnesium – in Geranium pusillum and Capsella bursa-pastoris, phosphorus, potassium and magnesium – in Cerastium holosteoides, potassium and magnesium – in Taraxacum officinale as well as potassium in Achillea millefolium were noted. |
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H. Lipińska,
M. Sykut,
Z. Czarnecki,
A. Gawryluk
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Wpływ pozostawionej na powierzchni trawnika skoszonej murawy na jego walory użytkowe
Influence of clippings left on the lawn surface on its functional value
Abstract. The investigations were conducted on light mineral soil using a randomised block design with three repetitions in the years 2007-2010. 14 lawn varieties of six grass species were studied: Agrostis capillaris, Festuca arundinacea, Festuca rubra, Festuca ovina, Lolim perenne and Poa pratensis. The influence of the cut biomass that was left on the lawn surface was assessed based on the general aspect and sward density over a study period of four years. The investigations showed that the biomass had a favourable impact on the general aspect of the Bardot (A. capillaris), Espro and Pintor (F. ovina) varieties, and a negative impact on the general aspect of the Stadion (L. perenne) and Bila (P. pratensis) varieties. The biomass had a favourable impact on the sward density of the Bardot (A. capillaris) and Pintor (F. ovina) varieties, and a negative impact on the sward density of the Stadion (L. perenne) and Nandu (P. pratensis) varieties. |
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A. Rzeźnik,
B. Golińska,
P. Goliński
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Zróżnicowanie materiałów hodowlanych Festulolium braunii w zakresie wybranych cech morfologiczno-biologicznych determinujących plon nasion
Differentiation of breeding materials of Festulolium braunii in regard to selected morphological-biological properties determined seed yield
Abstract. Field experiment was conducted in 2006-2007 in Plant Breeding Szelejewo Ltd. to investigate the differentiation of breeding materials of Festulolium braunii in regard to selected morphological-biological properties determined seed yield. The one-factorial experiment was established in three repetitions. In the selected two breeding strains SZD-FL11 adn SZD-FL12 9 and 13 genotypes, respectively, were analysed. The following parameters were analysed: morphology of leaf blades and generative shoots, structure of inflorescences and spikelets and seed site set. According to cluster analyses, it was found that breeding strain SZD-FL11 was distinguished by better uniformity of analysed properties in regard to seed potential of Festulolium braunii. |
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A Swędrzyński
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Geneza zbiorowisk łąkowych Europy Środkowej w świetle zróżnicowanych teorii i koncepcji naukowych
Origin of grassland communities of Central Europe in view of different scientific theories and concepts
Abstract. The objective of this study was to substantiate a thesis widely held in Polish grassland science literature about an almost absolute domination of the anthropogenic factor regarding the origin and development of grassland communities. The inspiration for undertaking this problem derived from some new theories, among others – the Vera theory, concerning the European primary landscape and factors shaping it. Among these factors, one of the more important elements earlier underestimated was the impact of large, wide-living herbivorous mammals. Theses presented in this study have both cognitive as well as utilitarian dimensions presenting a new approach to landscape protection and development as well as protection and management of populations of large herbivorous mammals. |
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Cz. Trąba
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Zróżnicowanie zbiorowisk trawiastych w Polsce
Differentiation of grassland communities in Poland
Abstract. The study is devoted to the differentiation of grassland which occur on the territory of Poland. It can be found that 145 species posses diagnostic value in phytosociological plant systematics. 1/3 of associations and communities, among those distinguished in Poland, is recognised on the basis of grasses. Grasses can be found in the names of as many as 160 syntaxa. Based on the topic related bibliography elaborated in Poland, the study also contains a review of communities with a high proportion of grasses. In many cases, not solely the basic units (associations) were taken into consideration, but also syntaxa of lower rank. |
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Lista recenzentów
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