Wszystkie pola: priming effect - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Soybean seed germinattion and seedling growth in response to deterioration and priming: effect of seed size
Autorzy:: Moshtaghi-Khavaran, Amir
Khomari, Saeid
Zare, Naser
Powiązania:: https://bibliotekanauki.pl/articles/2199614.pdf
Data publikacji:: 2014-12-18
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: aging
germination
priming
seed size
soybean
Opis:: A laboratory experiment was conducted to determine if separation of soybean [Glycine max (L.) Merr.] seeds by size might be effective in germinability of aged and primed seeds and subsequent seedling vigour. A known soybean seed lot was separated into four size classes using round-hole screens. The seed lots were deteriorated by rapid aging and invigorated by hydro- and halo-priming. These pre-treated seeds were planted in rolled paper towels and the results were evaluated according to ISTA rules. The small soybean seeds had higher speed of germination than the other size classes. The seedlings produced from large and medium seeds were longer and heavier than those from other size classes. Our results indicated that the large seeds had less sensitivity to short-term aging condition owing to the number of normal seedlings, while the deterioration more increased the germination time of large and medium seeds, compared to small ones. The alleviatory effects of halo-priming on deterioration of seeds are greater compared with hydro-priming. Although there are some debates, the present data further indicate that larger soybean seeds are susceptible to aging condition.
Źródło:: Plant Breeding and Seed Science; 2014, 70; 55-67
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Wpływ kondycjonowania na kiełkowanie i wigor nasion bratka ogrodowego (Viola x wittrockiana Gams.)
The effect of priming on germination and vigour of pansy (Viola x wittrockiana Gams.) seeds
Autorzy:: Dorna, H.
Li, W.
Szopińska, D.
Powiązania:: https://bibliotekanauki.pl/articles/11542861.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:: priming
germination
vigor
seed
pansy
Viola x wittrockiana
germination capacity
Opis:: Porównywano wpływ trzech metod kondycjonowania: hydrokondycjonowania, kondycjonowania w solach mineralnych oraz osmokondycjonowania na kiełkowanie i wigor nasion fiołka ogrodowego w temperaturze 20, 30 i 35°C. Nasiona hydrokondycjonowano w ograniczonej ilości wody (600 i 700 μl H2O·g nasion-1, 2, 3 lub 4 dni), kondycjonowano w roztworze KNO3 (-1.5 MPa, 5 dni) oraz osmokondycjonowano w roztworach glikolu polietylenowego (-1,0, -1,25 lub -1,5 MPa PEG 8000, 7 dni) w temperaturze 15 lub 20°C. Oceniano kiełkowanie i wigor nasion niekondycjonowanych i kondycjonowanych. Na ogól hydro-kondycjonowanie negatywnie wpływało na szybkość kiełkowania, procent kiełkujących nasion oraz zdolność kiełkowania. Kondycjonowanie w roztworze KNO3 przyśpieszyło kiełkowanie nasion w temperaturze 20, 30 i 35°C, ale nie miało wpływu na procent nasion kiełkujących i zdolność kiełkowania. Osmokondycjonowanie nasion w roztworze PEG o potencjale osmotycznym -1.0 MPa w temperaturze 20°C nie tylko znacząco poprawiaáo wskaźniki wigoru w temperaturze 20, 30 i 35°C, ale również najkorzystniej z zastosowanych metod wpáywaáo na procent nasion kiełkujących w temperaturze 30 i 35°C i istotnie zwiększyło zdolność kiełkowania nasion w temperaturze 20 i 30°C.
Three seed priming techniques: hydropriming, halopriming and osmopriming, were compared for their effects on germination and vigour of pansy (Viola × wittrockiana Gams.) seeds at 20°C, 30°C and 35°C. Seeds were hydroprimed in the restricted volumes of water (600 and 700 μl H2O·g seed-1, 2, 3 or 4 days), haloprimed in KNO3 solution (-1.5 MPa, 5 days), and osmoprimed in polyethylene glycol solutions (-1.0, -1.25 or -1.5 MPa PEG 8000, 7 days) at 15°C or 20°C. Seed germination and vigour tests were performed for untreated and primed seeds. Generally, hydropriming negatively affected the speed of germination, the percentage of germinating seeds and germination capacity. Halopriming accelerated seed germination at 20°C, 30°C and 35°C but did not influence the percentage of germinating seeds and germination capacity. Osmopriming of seeds in PEG solution of osmotic potential –1.0 MPa at 20°C not only improved germination rates at 20°C, 30°C, and 35°C to the highest extent, but also increased percentage of germinating seeds at 30°C and 35°C most effectively and positively affected seed germination capacity at 20°C and 30°C.
Źródło:: Acta Scientiarum Polonorum. Hortorum Cultus; 2014, 13, 6; 15-29
1644-0692
Pojawia się w:: Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Effect of laser- and hydropriming of seeds on some physiological parameters in sugar beet
Autorzy:: Sacala, E.
Demczuk, A.
Grzys, E.
Prosba-Bialczyk, U.
Szajsner, H.
Powiązania:: https://bibliotekanauki.pl/articles/15329.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: laser stimulation
priming
seed
physiological parameter
sugar-beet
phosphorus
acid phosphatase
chlorophyll
carotenoid
sugar
nutrient value
Opis:: The aim of this study was to evaluate the effect of pre-sowing seeds treatments on some agro-physiological parameters of sugar beets. The selected seeds treatments were: laser stimulation, hydropriming and combination of hydropriming and laser radiation. The impact of the seeds stimulation was analysed by determining the acid phosphatase activity, concentration of phosphate and photosynthetic pigments in leaves as well as nutrient status and some yield parameters of the roots. The plants were assayed four times during vegetation period. Experiment shown that different priming methods had relatively small effect on both the level of orthophosphate and total phosphorus concentration. On the other hand, the plants raised from seeds both hydro- and laser-primed remained more stable level of phosphate during whole vegetative season than remaining plants. The highest activity of acid phosphatase was observed in the younger plants and amongst different seed treatments, plants grown from non-primed seeds and laser primed seeds showed the highest enzyme activity. In the later stages of growth the activity considerably lowered. Considering the effect of different seeds treatments it was observed a significant increase in enzyme activity in plants emerged from the hydroprimed or laser stimulated seeds as well as an increment of chlorophylls in plants emerged from the hydroprimed seeds and both hydro- and laser primed ones. Seeds stimulation had a positive effect on the potassium content particularly in leaves of sugar beet and on some yield parameters of the roots. Concluding, it can be stated that the effect of pre-sowing seed stimulation (priming) was visible during the entire growing season and amongst the examined methods of seeds treatment, hydropriming sole or in a combination with laser radiation caused the highest alterations in assayed parameters.
Źródło:: Journal of Elementology; 2016, 21, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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