Wyniki wyszukiwania

1

On currents in the coastal zone of African shelf off Saint Louis

100%

Catewicz Z., Siwecki R.

Oceanologia

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1985

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tom 21

2

Sarcoglottis veyretae [Orchidaceae] - a new species from Brazil

100%

Szlachetko D. L.

Polish Botanical Studies

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1993

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tom 05

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

The human aural myiasis caused by Lucilia sericata

80%

Kaczmarczyk D., Kopczynski J., Kwiecien J., Michalski M., Kurnatowski P.

Wiadomości Parazytologiczne

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2011

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tom 57

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nr 1

4

Biochemical characteristics of Dunaliella-like isolate grown in liquid effluent from fish ponds

80%

Shamsudin L.

Acta Hydrobiologica

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1999

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tom 41

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nr 1

5

Cyanobacterial flora and water characteristics of paddy fields of Udaipur [India]

80%

Kapoor K., Leenta A.

Acta Hydrobiologica

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1998

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tom 40

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nr 1

6

Practical applications of the multi-component marine photosynthesis model (MCM)

80%

Ficek D., Majchrowski R., Ostrowska M., Kaczmarek S., Wozniak B., Dera J.

Oceanologia

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2003

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tom 45

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nr 3

This paper describes the applications and accuracy analyses of our multi-component model of marine photosynthesis, given in detail in Woźniak et al. (2003). We now describe an application of the model to determine quantities characterising the photosynthesis of marine algae, especially the quantum yield of photosynthesis and photosynthetic primary production. These calculations have permitted the analysis of the variability of these photosynthesis characteristics in a diversity of seas, at different seasons, and at different depths. Because of its structure, the model can be used as the ‘marine part’ of a ‘satellite’ algorithm for monitoring primary production in the sea (the set of input data necessary for the calculations can be determined with remote sensing methods). With this in mind, in the present work, we have tested and verified the model using empirical data. The verification yielded satisfactory results: for example, the statistical errors in estimates of primary production in the water column for Case 1 Waters do not exceed 45%. Hence, this model is far more accurate than earlier, less complex models hitherto applied in satellite algorithms.

7

N2-fixing bacteria isolated from the roots of crops and grasses

80%

Krol M. J., Perzynski A., Kobus J.

Acta Agrophysica

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2001

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tom 52

Free-living bacteria fixing-N2 (from genera of Azospirilliim and Acinetobacter- like) occurred in the rhizosphere of barley, cultivated on different soils and also in the rhizosphere of maize and grasses grown on medium alluvial soil. In the rhizosphere of barley occurrence of Azospirilliim sp. strains was found in 84%, and in the rhizosphere of maize and grasses in the amount of 100% and 94%, respectively. Bacteria of the genus Azospirillum were not found in the rhizosphere of Lolium perenne, Phleum pratense and Poa palustris. In the rhizosphere of barley cultivated on rendzinas and black earth developed from slightly loamy sand and in the rhizosphere of grasses, were found of halophylic strains of Azospirillum sp. (growth in medium with 3% NaCl) and strains, which preliminary determined as Acinelobacter-like (growth in medium with 6% NaCl). The most probable number (MPN) of bacteria from the genus Azospirillum counted in the rhizosphere of barley, maize and grasses ranged from 0 to 2450 cells g-1 of soil dry matter. No correlation between the frequency of their occurrence and content of available components, humus and exchangeable cations in the soil sampling date was observed. The nitrogenase activity of Azospirillum spp. strains isolated from the barley, maize and grasses rhizosphere ranged from 1.6 to 228.5 nM C2H4 h-1 cm-3 of gas phase. The nitrogenase activity of the isolated Acinetobacter-like strains ranged from 8,4 to 59,4 nM C2H4 h-1cm-3 of the gas phase.

Ograniczanie wyników

On currents in the coastal zone of African shelf off Saint Louis

Sarcoglottis veyretae [Orchidaceae] - a new species from Brazil

The human aural myiasis caused by Lucilia sericata

Biochemical characteristics of Dunaliella-like isolate grown in liquid effluent from fish ponds

Cyanobacterial flora and water characteristics of paddy fields of Udaipur [India]

Practical applications of the multi-component marine photosynthesis model (MCM)

N2-fixing bacteria isolated from the roots of crops and grasses