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Wyszukujesz frazę "bio-regulator" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Effect of the Growth Regulators on the Development of Selected Conifer Trees
Autorzy:
Wiśniewska-Kadżajan, B.
Jankowski, K.
Misiak, M.
Powiązania:
https://bibliotekanauki.pl/articles/124701.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
bio-regulator
active substance
Picea pungens
Thuja occidentalis
plant growth
Opis:
Nowadays, substances stimulating the growth and development of different agricultural plant species are used in intensive farming. Some of such plant growth regulators are Asahi SL and Moddus 250-EC. So far the literature dealing with growth regulators has focused mainly on their effects on deciduous trees. Because no data are available on how those substances affect conifer trees, this paper presents description of experiments on the effects of Asahi SL and Moddus 250-EC on the increase of tree height and branch length of Picea pungens and Thuja occidentalis. The research has proved that morphological features of the plants tested in the experiment varied according to which growth regulator was used and in what month the measurements were taken. Conifer trees sprayed with Asahi SL had a bigger yearly height growth rate and bigger growth of branches than those sprayed with the stimulator Moddus 250-EC.
Źródło:
Journal of Ecological Engineering; 2017, 18, 2; 129-135
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of Bio-algeen S90 on the growth of multiflora rose seedlings (Rosa multiflora Thunb.)
Autorzy:
Szmagara, M.
Pudelska, K.
Durlak, W.
Marcinek, B.
Rojek, K.
Powiązania:
https://bibliotekanauki.pl/articles/12684067.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
multiflora rose
Rosa multiflora
ornamental plant
plant growth
growth regulator
fluorescence
chlorophyll
biopreparation
Bio-algeen S-90 preparation
Opis:
Striving to intensify horticultural production, new and more effective bio-preparations are being sought to stimulate plant growth and development. Bio-algeen S90 is a natural agent based on sea algae, the high biological activity of which results from the high content of natural growth regulators. The aim of the study was to verify the influence of Bio-algeen S90 on the growth, morphological characteristics and chlorophyll fluorescence of Rosa multiflora seedlings. The bio-preparation was applied one, two and three times at concentrations: 0.1, 0.2, 0.4 and 0.6 mg.dm−3. Following parameters were measured to evaluate the response of plants to the bio-preparation: F0 – initial fluorescence, Fm – maximal fluorescence in the dark-adapted state, Fv/Fm – maximum photochemical efficiency of PSII. All concentrations of the bio-preparation and frequency of its application stimulated the number of shoots in a bush, the length of shoots and the diameter of the root crown of plants intended for budding. The most beneficial was the two-fold bio-preparation application at a concentration of 0.4 mg.dm–3. Bio-algeen also positively influenced the chlorophyll fluorescence parameters. The highest mean F0 and Fm values were recorded with the two-fold preparation treatment. There was no significant effect of the bio-preparation on the Fv/Fm index, which was within the range of 0.75–0.66.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 3; 35-43
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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