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Wyszukujesz frazę "seed germination dynamics" wg kryterium: Wszystkie pola


Wyświetlanie 1-9 z 9
Tytuł:
Seed germination dynamics of some woody legumes: implication for restoration of arid zones ecosystems
Autorzy:
Buba, T.
Ezra, A.G.
Bako, S.P.
Sabo, M.U.
Powiązania:
https://bibliotekanauki.pl/articles/28825291.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2023, 104, 4; 381-402
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of pH levels on soyben seed germination dynamics
Wpływ poziomów pH na dynamikę kiełkowania nasion soi
Autorzy:
Rymuza, Katarzyna
Radzka, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/2216440.pdf
Data publikacji:
2021
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
germination rate
logistic function
pH
soybean (Glicine max (L.) Merrill)
funkcja logistyczna
soja (Glicine max (L.) Merrill)
szybkość kiełkowania
Opis:
Background. Soybean is a legume of substantial economic importance. The quality and quantity of soybean yield are influenced by various factors include pH soil. Many species of plants have strictly specified physiological requirements concerning the soil pH mainly in early phases of plant development, i.e. seed germination. Traditional methods used in germination data analysis include geramination energy and germination capacity. An alternative may be use tuse of growth models to describe germination process. Mathematical models give considerable information resulting in parameter estimates with relevant biological interpretations. Material and methods. Soybean seeds (cv. Abelina, Merlin and SG Anser) collected from cultivated plants grown in experimental fields in 2017 and 2018 were analysed. Field experiment was conducted in Łączka, eastern Poland (52°15′ N; 21°95′ E). After harvest, samples of seeds were collected and analysed in the laboratory, seed germination parameters were determined at different pH values of the water solution (pH = 5.0, 5.5, 6.0, 6.5, 7.0). The numbers of germinated seeds were recorded during the period of 14 days. Logistic function was used to analyse cumulative germination curves over time. The function parameters: value of the horizontal asymptote coefficients and rate of increase in germination rate, were calculated. Results. Generally, the seed germination was the better in 2017 than 2018. The numbers of seeds germinating in 2017 had the highest theoretical asymptotic value (parameter a) and low values of coefficients k (germination rate parameter) and b (shape parameter). Differences were found also between seeds germinated at different pH levels. The pH values of 6 and 6.5 provided were associated with the most rapid germination of all the test cultivars. Based on the logistic function, the highest number of germinated seeds was recorded between day 4 and 6 (germination rate ranging from 18 to 21% per 24 hours). Conclusion. Testing of germination of cultivars at different pH levels of the medium might be of help while identifying and selecting genotypes for particular locations.
Soja (Glycine max (L.) Merr.) jest jedną z najważniejszych roślin strączkowych na świecie. Na jakość i wielkość plonu soi mają wpływ różne czynniki, w tym kiełkowanie i pH gleby. Czas i sz ybkość kiełkowania to ważne parametry opisujące dynamikę tego procesu. W pracy przeanalizowano kiełkowanie nasion soi (odmiany: Abelina, Merlin i SG Anser) zebranych z roślin uprawianych na polach doświadczalnych w 2017 i 2018 roku. Na podstawie wyników doświadczenia laboratoryjnego oceniono dynamikę kiełkowania nasion w zależności od pH podłoża. Obliczono szybkość i tempo kiełkowania nasion oraz teoretyczną (asymptotyczną) wartość funkcji, wykorzystując w tym celu model logistyczny. Stwierdzono, że szybkość i tempo kiełkowania nasion pochodzących z doświadczenia z 2017 i 2018 roku były odmienne. Generalnie nasiona zebrane w 2017 roku charakteryzowały się większą szybkością i większym tempem kiełkowania niż nasiona zebrane w 2018 roku. Ponadto charakteryzowały się najwyższą teoretyczną wartością asymptotyczną (parametr a) oraz niskimi wartościami współczynników k i b. Odczyn podłoża o pH = 6 i pH = 6,5 warunkował najszybsze kiełkowanie nasion u wszystkich odmian.
Źródło:
Acta Scientiarum Polonorum. Agricultura; 2021, 20, 2; 81-88
1644-0625
Pojawia się w:
Acta Scientiarum Polonorum. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Soil Contamination with Diesel Oil on Germination Dynamics and Seedling Development of Selected Species of the Fabaceae family
Autorzy:
Pawluśkiewicz, Bogumiła
Gnatowski, Tomasz
Janicka, Maria
Powiązania:
https://bibliotekanauki.pl/articles/123318.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Fabaceae family
soil pollution
diesel oil
seed germination dynamics
nonlinear function
radicle
Opis:
The aim of the study was to determine the effect of soil contamination with diesel oil on the early development of three species of the Fabaceae family (Medicago lupulina L., Lotus corniculatus L., Trifolium repens L.). These species have a wide ecological range and they often occur on extensively used lawns. For these reasons, the knowledge on their tolerance to soil pollution with diesel oil can be of great importance in the creative and conservative cultivation of these plant species and their seed production for establishing the greenery of communication routes. The studies were carried out under controlled laboratory conditions. The soil substrates were composed of the loamy sand mixed with diesel oil in an amount of 2.5 g and 5.0 g per 1 kg of absolute dry mass of soil. The germination dynamics were analyzed. The measurements were conducted twice a day for 12 days after sowing. The development of seedlings was determined on the basis of the length, diameter, area and volume of the radicle. These features were determined on 20-day-old seedlings of the tested species. For the analysis of plant material, the technique of the scanned image was used in the “WinRhizo PRO 2009” software. It was proven that the tested species have various tolerances for the petrol oil in the soil and demonstrate various defense mechanisms under the stress conditions. The least changes of the seed germination rate on the soil with diesel oil against the control were indicated for L. corniculatus. The defense strategy of that species relied on the radicle development through increasing the diameter and – in consequence – the surface and the volume. M. lupulina also showed good germination capacity in the presence of diesel oil, but the radicle was shorter in comparison to the control. The germination rate of T. repens in the contaminated soil was significantly reduced. The recommendation for using not only L. corniculatus, but also M. lupulina on the contaminated areas should be taken into consideration.
Źródło:
Journal of Ecological Engineering; 2020, 21, 1; 210-218
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of corona discharge field on seed viability and dynamics of germination
Autorzy:
Lynikiene, S.
Pozeliene, A.
Rutkauskas, G.
Powiązania:
https://bibliotekanauki.pl/articles/26555.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
corona discharge field
viability
germination dynamics
seed viability
Źródło:
International Agrophysics; 2006, 20, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of sowing depth and seed size on the dynamics of germination and productivity of spring wheat
Autorzy:
Sułek, Alicja
Ogórkiewicz, Monika
Powiązania:
https://bibliotekanauki.pl/articles/2148088.pdf
Data publikacji:
2020-12-30
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
spring wheat
seed size
sowing depth
germination rate
grain yield
yield components
Opis:
In the years of 2013–2014, pot experiments were conducted to determine the influence of sowing depth and seed size on the dynamics of spring wheat emergence and yields. The study was carried out in Mitscherlich pots using the random block method, in four replications. The experiment included spring wheat cultivar Tybalt. The first factor of the experiment was the sowing depth of seeds (1, 3, 5, 7 cm), while the second factor was the seed yield. Four levels of the second factor were taken into account: a1 – certified material (purchased), a2 – small-sized seeds (1.8 – 2.2 mm), a3 – medium seeds (2.2 – 2.5 mm), a4 – large seeds (> 2.5 mm). Adequate size of seeds for the study was ensured by sorting out of the certified material on Vogel screens. The research showed the joint impact of seed size and sowing depth on grain yield formation, number of plants and ears per pot and production tillering. The application of the sowing depth of 7 cm resulted in a significant decrease in grain yield from the pot of all seed fractions, especially the smallest fraction of seeds (1.8 – 2.2 mm). The variant of sowing large seeds (> 2.5 mm) at the depth of 3 cm turned out to be the most beneficial for grain yield.
Źródło:
Polish Journal of Agronomy; 2020, 43; 63-69
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ napromieniowania mikrofalowego na dynamikę wzrostu kiełków bulwy ziemniaka
The impact of microwave irradiation on growth dynamics of potato tuber germs
Autorzy:
Jakubowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/291192.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
ziemniak
sadzeniak
pole mikrofalowe
kiełkowanie
potato
tuber
microwave field
seed potato
germination
Opis:
W pracy zaprezentowano wyniki badań dotyczące wpływu dawki napromieniowania mikrofalami na dynamikę wzrostu kiełków sadzeniaków bardzo wczesnej odmiany ziemniaka Felka Bona. Materiał badawczy w przedziale czasowym 2-60 s poddano działaniu mikrofal o częstotliwości 2,45 GHz i mocy źródła promieniowania 1000 W. Całkowite dawki napromieniowania zawierały się w przedziale 2000-60000 J co odpowiadało 72,8-3973,5 Jźg-1 jednostkowych dawek promieniowania mikrofalowego. Weryfikacja założonego zadania badawczego - czy możliwa jest stymulacja procesu wzrostu kiełków poprzez napromieniowanie mikrofalami na sadzeniaka - pozwoliła na stwierdzenie, że określone dawki jednostkowego napromieniowania mikrofalami pozytywnie wpływają na dynamikę wzrostu kiełków bulwy ziemniaka.
The paper presents results of the research regarding the impact of microwave irradiation exposure dose on growth dynamics of seed-potato germs of a very early potato variety - Felka Bona. Material under investigation was exposed to microwave radiation at frequency of 2.45 GHz and radiation source power reaching 1000 W within time interval 2-60 s. Total irradiation doses ranged from 2000 to 60000 J, which corresponded to 72.8-3973.5 Jźg-1 of unit microwave radiation doses. Verification of the assumed research problem - if it is possible to stimulate the germ growth process by seed-potato irradiation with microwaves - allowed to state that certain doses of unit microwave irradiation have positive effect on growth dynamics of potato tuber germs.
Źródło:
Inżynieria Rolnicza; 2008, R. 12, nr 5(103), 5(103); 7-13
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prolongirovannye ehffekty opticheskogo izluchenija krasnogo diapazona v period prorastanija semjan
Prolonged effect of optical radiation of a red range during the germination of seeds
Autorzy:
Pankova, O.
Fesenko, A.
Bezpalko, V.
Lisichenko, N.
Golovan, L.
Romanova, T.
Powiązania:
https://bibliotekanauki.pl/articles/76435.pdf
Data publikacji:
2015
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
seed treatment
germination energy
endosperm
dynamics
dry mass
sprout
starch
monosaccharide
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2015, 17, 7
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ nawozów i fungicydów na kiełkowanie nasion oraz początkową fazę rozwoju siewek olszy czarnej Alnus glutinosa (Gaertn.)
The impact of fertilisers and fungicides on seed germination and the initial phase of seedling growth in black alder Alnus glutinosa (Gaertn.)
Autorzy:
Bedkowski, M.
Buraczyk, W.
Powiązania:
https://bibliotekanauki.pl/articles/2142638.pdf
Data publikacji:
2020
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
organic fertilisers
fungicides
germination
dynamics of seedling growth
dry mass of seedlings
Alnus glutinosa
bionawozy
fungicydy
kiełkowanie nasion
dynamika wzrostu sadzonek
sucha masa siewek
Opis:
To test the influence of selected fertilisers and fungicides on the germination of black alder seeds and the initial phase of seedling growth, we conducted a laboratory experiment outlined in this paper. Six treatments were applied on petri dishes each containing 30 seeds. The substrate for germination was sterile filter paper wetted with an aqueous solution of either one of two fungicides, two organic fertilisers, a mineral fertiliser or distilled water (control). Fungicides and fertilisers were applied according to the manufacturers’ recommendations. In order to keep genetic variability to a minimum, seeds originated from a single tree in a seed stand located in the Chotyłów Forest District, eastern Poland. Germination and growth took place at a temperature of 23oc ± 2oC with a 14 h/10 h day/night cycle. Seeds began to germinate as early as the second day after sowing, except for the mineral fertiliser treatment, in which the first sprouting was observed on day 3. Seedling length was measured daily from the day of germination of a given seed through to day 15. Germination was found to proceed most rapidly in the control, while the largest increments in length and dry mass occurred in the control and fertiliser treatment with the so-called N1 fertiliser (solely comprising growth stimulators in the form of humic acids, chitosan and silicon). The most limited growth was observed under the influence of the F1 fungicide (active compound Thiram) as well as the organic fertiliser N2 (a mixture of mineral components and organic growth stimulators). Roots were found to develop most rapidly in the control and in the treatment with N1 (no mineral components). These are also the only two treatments in which the roots were longer than the stems after 15 days. Fertiliser N2 was found to have the most unfavourable influence on both, germination and the first phase of seedling deve- lopment. The fact that selected fertilizers and fungicides affected black alder seeds and seedlings under laboratory conditions does not mean that they will have an impact under field conditions or on other forest tree species. Therefore, this type of research will need to be conducted individually for each forest tree species.
Źródło:
Leśne Prace Badawcze; 2020, 81, 3; 107-114
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contribution to the characteristic of Cladium mariscus [L.] Pohl population in the initial zone of floating mat on an oligo-humotrophic lake in North-Eastern Poland
Autorzy:
Namura-Ochalska, A
Powiązania:
https://bibliotekanauki.pl/articles/56588.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
capacity
Cladium mariscus
Polska
spatial structure
oligo-humotrophic lake
clonal growth
population dynamics
seed germination
diaspore production
Opis:
In the initial phase of growth in an oligo-humotrophic lake, Cladium mariscus forms a dense and tall sawgrass bed invading the open water in the form of a floating mat. High densities of submerged evergreen perennial stems of C. mariscus, over two metres high and abundantly fruiting, ensure its persistence, and form a natural barrier to the invasion of other species. Dense mats of sawgrass are formed as a result of clonal and rhizome growth. Although diaspore production is abundant under natural conditions, only vegetative propagation of stems was observed. In different variants of the experiment only seeds wintering on stems of mother plants were capable of germinating. Hard seed coats had an important effect on the germination capacity of seeds.
Źródło:
Acta Societatis Botanicorum Poloniae; 2005, 74, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-9 z 9

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