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Wyszukujesz frazę "Pietryka, M." wg kryterium: Autor


Wyświetlanie 1-5 z 5
Tytuł:
Wpływ procentu usuwanych kiełków na plon i wielkość bulw w plonie
Effect of the per cent of removed sprouts on the yield and size of tubers in the yield
Autorzy:
Pietryka, M.
Powiązania:
https://bibliotekanauki.pl/articles/805734.pdf
Data publikacji:
1988
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Opis:
В 1977-1981 гг. в опытной станции Ядвисин были проведены две серии полевых опытов по влиянию удаления ростков на урожай клубней, число ботвяных стеблей и структуру урожая. Саженцы подвергали предварительному проращиванию на протяжении 4 недель, а затеи, непосредственно перед посадкой, удаляли определенное число боковых ростков, оставляя в каждом случае верхушечный росток. Исследовали следующие варианты: I- ая серия: Янка, Кора, Поля и Ронда - удаление 15% и 30% ростков, II- ая серия: сорта Элида, Ливия, Тна, Одра - удаление 25% и 50% ростков. Не было доказано общее отрицательное влияние удаления 30-50% ростков на урожай клубней, хотя не наблюдалась заметная тенденция к снижению числа ботсяных стеблей. Среди 8 сортов только у сортов Поля, Ронда и Элида установлено снижение урожая вызванное удалением 50% боковых ростков (это снижение составляло соответственно 22,3 74,0 т 24,7%). Удаление ростков способствовало повышению участия крупных клубней в урожае за счет саженцев. Механизация посадки предварительно пророщенных саженцев представляется возможной за исключением семенных плантаций.
Two series of field experiments on the effect of removal of sprouts in the yield of tubers, number of haulms and yield structure were carried out in 1977-1981 at Jadwisin. The seed potatoes were presprouted for 4 weeks and then close before planting a definite per cent of lateral sprouts was removed, leaving always the top sprouts. The following varieties were tested: 1st series: Janka, Kora, Pola, Ronda - removal of 15% and 30% of sprouts. II nd series: Elida, Ina, Liwia, Odra - removal of 25% and 50% of sprouts. No generalnegative effect of the removal of 30-50% of sprouts on the yield of tubers was observed, despite a distinct tendency to reduction of the number of haulms. Among 8 varieties tested only in the Pola, Ronda and Elida, varieties a drop of the yield after removal of 50% of lateral sprouts was observed (this drop amounted to 22.3, 74.0 and 24.7, respectively). The removal of sprouts caused an increase of the share of big tubers in the yield at the cost of seed potatoes. It seems that mechanization of planting of pre-sprouted tubers would be possible, except for seed plantations.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 1988, 342
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taxonomical studies on Hormotila ramosissima Kors. [Chlorophyceae]
Autorzy:
Matula, J
Pietryka, M.
Richter, D.
Powiązania:
https://bibliotekanauki.pl/articles/56514.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
taxonomy
Hormotila ramosissima
Chlorophyceae
morphology
reproduction
peat bog
Opis:
Hormotila ramosissima Korš., a very rare in the world and poorly known species, have been found in peat bogs of Lower Silesia. The growth stages typical of this species but unknown so far, have been described and illustrated. It was found that this species has many features in common with the representatives of Volvocales, Tetrasporales, and chlorococcales. The regularly observed zoospores and hemizoospores, which accompanied the various developmental stages of that species, showed an internal structure of Chlamydomonas-type. Studies on Hormotila ramosissima were based on live material collected in ample quantities from peat bogs. The collected in this way repeatable and abundant data allowed to discuss problems concerning morphology, reproduction and development, as well as consider the taxonomic position this species.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 2; 149-156
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ nawadniania na wydajność sadzeniaków z jednostki powierzchni
Irrigation effect on the production of seed potatoes harvested from the area unit
Autorzy:
Roztropowicz, S.
Gloska, A.
Goc, K.
Pietryka, M.
Powiązania:
https://bibliotekanauki.pl/articles/809346.pdf
Data publikacji:
1988
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Opis:
В 1973-1980 гг. проводили несколько трехлетних циклов опытов с 17 сортами картофеля. Исследования проводились на опытом поле Института метеорологии и водного хозяйства в Борова Гура или в опыт ной станции Института картофелеводства Ядвисин. Орошение нормой полива 20 и 40 мм проводилось, когда влажность почвы снижалась ниже 50% полевой влагоемкости. Основой классификации результатов было влияние орошения на величину общего урожая. Были выделены две группы сортов: с высшими потребностями в воде, т.е. таких, у которых повышение поливной нормы с 20 до 40 мм приводило к существенному повышению урожая клубней, и с меньшими требованиями. В этой группе сортов самый высокой урожай получали при применении поливной нормы 20 мм. Установлено, что орошение приводило к снижению участия в урожае фракции саженцев 35-45 мм, а к повышению участия фракции 45-55 мм. Несмотря на изменения в структуре саженцев, урожай в т/га и коэффициент размножения образовались пропорционально общему урожаю. Самый высокий урожай саженцев и самый высокий коэффициент размножения были получены в варианте гарантирующем наивысший общий урожай. В случае отсутствия точной информации о потребностях в воде возделы ваемого сорта „безопасная" норма воды в орошении должна составлять 20 мм.
Several three-year cycles of experiments with the total number of 17 potato varieties were carried out in the period 1973-1980. The investigations were conducted on an experimental field of the Institute of Meteorology and Management at Borowa Góra and at the Experiment Station Jadwisin. Irrigation with the water rate of 20 and 40 mm was applied when the soil moisture level dropped below 50% of field water capacity. The classification of results was based on the irrigation effect on the total yield level. Two groups of varieties were distinguished, viz.: with higher water requirements, i.e. in which an increase of water rate from 20 up to 40 mm caused a significant growth of the yield of tubers, and with lower requirements. In the latter group the highest yield was obtained at application of the water rate of 20 mm. It has been found that the irrigation led to a decrease of the fraction of seed potatoes of 35-45 mm in dia in the yield and to an increase of the fraction of tubers of 45-55 mm in dia. Despite changes in the structure of seed potatoes, the yield form hectare and the reproduction coefficient were proportional to the total yield. The highest yield of seed potatoes and the highest reproduction coefficient were obtained in the treatment ensuring the highest total yield. In case of a lack of an exact information concerning water requirements of the given variety cultivated, the „safe" single water rate in irrigation should amount to 20 mm.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 1988, 342
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cyanobacterial and green algal assemblages in various tundra habitats in the high Arctic (West Spitsbergen, Norway)
Autorzy:
Richter, D.L.
Matula, J.
Pietryka, M.
Wojtun, B.
Zwolicki, A.
Zmudczynska-Skarbek, K.
Stempniewicz, L.
Powiązania:
https://bibliotekanauki.pl/articles/58355.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Botaniczne
Opis:
The diversity of cyanobacteria and algae from various microhabitats in Spitsbergen is comparatively well known. However, the relationships between environmental factors and the structure of microflora communities remain largely unclear. This study was conducted in Hornsund Bay, which exhibits large variability in the physicochemical characteristics of habitats, particularly with regard to the availability of nitrogen and phosphorus. This variability, to a large degree, is caused by seabird colonies, which fertilize nutrient-poor terrestrial ecosystems near their nesting areas. The large variations in ecological conditions and vegetation types in the study area aid assessment of habitats representing different combinations of factors potentially influencing the formation of cyanobacterial and algal assemblages. The aim of this study was to examine the influence of physicochemical parameters on the taxonomic composition and diversity of green algae and cyanobacteria (particularly the coccoid, oscillatorialean, and heterocystous taxa). The study encompassed two groups of habitats – soil surface habitats and water-saturated habitats, both characterized by diverse influences of seabird colonies, vegetation cover, and moisture. Our results showed that taxonomic diversity and composition of cyanobacteria and algae were mainly influenced by P–PO₄³⁻, N–NH₄⁺ and Ca²⁺ (soil surface habitats), and NO₃⁻, as well as moisture (index of wetness) and pH (water-saturated habitats). The variability of these physicochemical properties was largely due to the variability of the seabird colony influence. Taken together, our findings aid in understanding the processes of formation of phycoflora assemblages in Arctic tundra.
Źródło:
Acta Societatis Botanicorum Poloniae; 2018, 87, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hygiene, ways of storage and lifetime of removable dentures
Autorzy:
Krawczyk, J.
Bozyk, A.
Kiworkowa-Raczkowska, E.
Berger, M.
Bakalczuk, M.
Szkutnik, J.
Pietryka-Michalowska, E.
Wdowiak, A.
Sapula, M.
Powiązania:
https://bibliotekanauki.pl/articles/3601.pdf
Data publikacji:
2015
Wydawca:
Instytut Medycyny Wsi
Tematy:
human hygiene
hygiene
storage
removable denture
denture
Opis:
Hygiene plays an important role in patients who use removable dentures. The proper way of cleaning and storage also provides better health of oral cavity tissues as well as for the remaining teeth. The research involved 162 patients, 133 women and 29 men, aged 60–90, with different levels of education, the majority with secondary education. All patients were using removable dentures. 85.8% declared earlier use of dentures, and a half of the patients had used dentures for no more than 7.5 years. A considerable percentage (33.95%) used dentures for the whole day. Storing in a container with fluid was used by 25.93% of the respondents. Over 70% used toothpaste to clean their dentures and about 14% immersed them in special preparations, e.g. CoregaTabs, while over 8% used soap. Among patients who cleaned their dentures, the majority cleaned them once a week (75%) and the minority – twice a week (25%). The greatest percentage of patients cleaned their dentures with a toothbrush and toothpaste, which is not recommended due to occurring microabrasions. It is recommended that patients should be educated regarding prosthesis hygiene and regular follow-ups.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2015, 09, 1
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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