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Wyświetlanie 1-15 z 49
Tytuł:
Nitric oxide trascriptional players during seed dormancy and germination
Autorzy:
Albertos, P.
Mateos, I.
Fernandez-Arbaizar, A.
Romero-Puertas, M.
Lorenzo, O.
Powiązania:
https://bibliotekanauki.pl/articles/80484.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
nitric oxide
seed dormancy
germination
phytohormone
abscisic acid
plant growth regulator
transcription factor
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Seed Emergence, Seedling Vigor Enhancement of Some Populations From Satureja Bachtiarica With Chemical, Mechanical and Physiological Treatment
Autorzy:
Alizadeh, M. A.
Arab, H.A.
Tabaie, R.
Nasiri, M.
Jafari, A.A.
Powiązania:
https://bibliotekanauki.pl/articles/2199668.pdf
Data publikacji:
2016-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
dormancy
germination
Satureja bachtiarica
vigor
Opis:
The seeds of 3 populations from Satureja bachtiarica were collected from three native vegetation areas (Simirom2, Sharkord and Yazd). The different treatments including: cold stratification, gibberlic acid (50 and 100 ppm) Potassium nitrate (0.2 and 0.4 percent). Physical scarification (sand paper), chemical scarification (Ethylic alcohol %70) and distilled water (control) were used for breaking dormancy of the seed samples. For greenhouse experiment, the seed samples were treated with treatments and then were sown in pots using randomize design with three replications. Emergence percentage, emergence speed, length of root and shoot, seedling length, root/shoot length ratio, vigor index, seedling fresh and dry weight, dry/fresh weight ratio were evaluated during 45 days of experiment. Comparing of population Semirom2 form savory of Bachtiary was higher than other population. It was concluded that effect of gibberlic acid and potassium nitrate was higher than physical scarification and chemical scarification comparing with control.
Źródło:
Plant Breeding and Seed Science; 2016, 74; 37-44
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Evidence for Non-encysted, Freeze-resistant Stages of Terrestrial Naked Amoebae Capable of Resumed Growth after Freeze-thaw Events
Autorzy:
Anderson, O. Roger
Powiązania:
https://bibliotekanauki.pl/articles/763509.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Cold adaptations, cryoprotective dormancy, resting cells, winter freeze resistance
Opis:
Experimental evidence is presented to support a hypothesis that terrestrial naked amoebae, collected during late autumn from cold, moist temperate soil, develop a non-encysted, freeze-thaw resistant stage that is capable of surviving winter frozen soil. Therefore, in addition to cyst formation, naked amoebae may survive harsh, frozen winter soil in a dormant or resting stage that is capable of rapid resumed growth in spring, thus gaining an immediate competitive advantage in exploiting food and other environmental resources early after the winter thaw.
Źródło:
Acta Protozoologica; 2016, 55, 1
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
NO modifies ABA- and GA-related gene expression in germinating apple (Malus domestica Borkh.) embryos
Autorzy:
Andryka, P.
Wisniewska, A.
Krasuska, U.
Gniazdowska, A.
Bogatek, R.
Powiązania:
https://bibliotekanauki.pl/articles/79830.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
nitric oxide
apple
Malus domestica
germination
gene expression
morphological abnormality
seed dormancy
transduction pathway
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
NO-induced alleviation of dormancy of apple embryos is related to modification of phytohormonal signaling pathways
Autorzy:
Andryka, P.
Wisniewska, A.
Gniazdowska, A.
Krasuska, U.
Bogatek, R.
Powiązania:
https://bibliotekanauki.pl/articles/80008.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
apple embryo
embryo dormancy
morphological abnormality
seed dormancy
abscisic acid
transduction pathway
gibberellin
phytohormone
signalling pathway
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oxidative signalling in seed germination and dormancy
Autorzy:
Bailly, C.
Powiązania:
https://bibliotekanauki.pl/articles/81220.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
seed dormancy
germination
genetic background
environment condition
abscisic acid
gibberellin
reactive oxygen species
Arabidopsis
proteomics
transcriptomics
transduction
hormone signalling
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrotime model analysis of cornflower achene germination
Autorzy:
Bochenek, A.
Golaszewski, J.
Kondrat, B.
Szymczak, M.
Jagielska, T.
Powiązania:
https://bibliotekanauki.pl/articles/80450.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
seed dormancy
hydrotime model
mature seed
Centaurea cyanus
seed storage
germination
water stress
weather condition
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effects of temperature on the dormancy and germination of Cirsium arvense [L.] Scop. seeds
Autorzy:
Bochenek, A
Golaszewski, J.
Piotrowicz-Cieslak, A.I.
Gorecki, R.J.
Powiązania:
https://bibliotekanauki.pl/articles/57089.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
weed
stratification
weed seed
seed
seed dormancy
life cycle
dormancy
temperature effect
afterripening
Cirsium arvense
germination
perennial species
Opis:
The ecophysiological regulation of seed dormancy in perennial species and those with a varied life cycle has not been studied in detail yet. That is why an attempt has been made to determine the Cirsium arvense seed water relations during stratification and afterripening at different temperatures and germination at constant or fluctuating temperatures on the basis of the hydrotime model. The obtained results showed that breaking of the primary dormancy of achenes took place only during the first stratification month at moderate temperatures, mainly due to an increase in the average water-stress tolerance in a seed population. The induction of secondary seed dormancy during after-ripening at all temperatures resulted mostly from a substantial loss of the seeds' ability to tolerate water stress. Fluctuating temperatures affected neither seed germination nor the hydrotime model parameters. The analysis of the variations of hydrotime model parameters allows a better understanding of the physiological basis of seed dormancy relief and induction.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 2; 105-114
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Arginine metabolism during NO- and polyamines-induced dormancy removal and germination of apple embryos
Autorzy:
Budnicka, K.
Krasuska, U.
Bogatek, R.
Gniazdowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/80327.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
apple embryo
Malus domestica
germination
dormancy
arginine
polyamine
pretreatment
nitric oxide
putrescine
spermidine
spermine
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ROS and RNS are required for polyamines-dependent germination of apple (Malus domestica Borkh.) embryos
Autorzy:
Budnicka, K.
Krasuska, U.
Bogatek, R.
Gniazdowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/80376.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
polyamine
apple
Malus domestica
embryo
seed
dormancy
nitric oxide
reactive oxygen species
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Breaking of seed dormancy, germination and seedling emergence of the common hawthorn (Crataegus monogyna Jacq.)
Autorzy:
Bujarska-Borkowska, B
Powiązania:
https://bibliotekanauki.pl/articles/41072.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
stratification
Crataegus monogyna
common hawthorn
scarification
breaking
seedling emergence
hawthorn
germination
seed dormancy
Opis:
The most advantageous time for collecting fruits of the common hawthorn (Crataegus monogyna Jacq.) falls on October, when they are fully ripe. The stones extracted from the fruits must be dried at room temperature to the moisture content of about 10%. The dormancy of the common hawthorn seeds can be overcome by their stratification in a moist medium in one of the three thermal regimes: - 25°/3°C (16 weeks at 25°C followed by 15-18 weeks at 3°C, i.e. to the time when the first seedlings start to appear) - 20~30°/3°C (16 weeks at 20~30°C (16+8 hrs/day) followed by 15-18 weeks at 3°C, i.e. to the time when first seedlings start to appear) - 20~30°/3°C (16 weeks at 20~30°C (24+24 hrs) followed by 15-18 weeks at 3°C, i.e. to the time when first seedlings start to appear) Having been stratified, the seeds germinate vigorously (in 3-5 weeks) and at a high percentage at temperatures of 3~10°, 3~15°, 3~20° and 3~25°C, (16+8 hrs/day) and the seedlings emerge at 3~20°C (16+8 hrs/day) in 4-6 weeks. Storage for one year at -3°C in the case of the seeds dried after harvest to the moisture content of 10% does not reduce their germination capacity. Stones scarification in concentrated sulphuric acid for 120 minutes followed by stratification at 3°C has an adverse effect on seed emergence at the temperature 3~20°C (16+8 hrs/day). It is recommended that stratified seeds should be sown into the still cool soil at the end of March or the beginning of April, as the increased temperature induces the secondary dormancy in seeds.
Źródło:
Dendrobiology; 2002, 47 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dormancy breaking, germination, and seedling emergence from seeds of Crataegus submollis
Autorzy:
Bujarska-Borkowska, B
Powiązania:
https://bibliotekanauki.pl/articles/41762.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
hawthorn
Crataegus submollis
seed
seedling emergence
germination
dormancy breaking
stratification
scarification
desiccation
storage
Opis:
Effects of several stratification variants on seed dormancy breaking were compared in Crataegus submollis Sarg. (hairy cockspur-thorn or Quebec hawthorn). Ripe seeds were collected (in October), cleaned, and dried to a moisture content of 7–12%. Seed dormancy in this species was broken most effectively by warm-cold stratification of nutlets, in a substrate or without any substrate, at 15~25°/3°C or 20~30°/3°C, i.e. with a cyclically alternating warm stage (16+8 hrs or 24+24 hrs/cycle) lasting 16–20 weeks, followed the cold stage lasting ca. 20 weeks, i.e. till the appearance of the first germinating seeds. After stratification, emergence rate is equally high (ca 50%) at cyclically alternating temperatures of 3~15°C and 3~20°C (16+8 hrs). Chemical scarification of nutlets in 96% sulphuric acid for 3 hrs, followed by warm-cold stratification at 20~30°/3°C, with a short, 4-week warm stage, also ensures a high emergence rate (58%). Seed desiccation (in nutlets) slowly to a moisture content of 10–12%, after stratification in a substrate or without any substrate as well as after scarification, results in a reduced emergence rate, especially if seeds are dried to the lower moisture content. Seed storage (in nutlets after drying to a moisture content of 10%) for 10 years at –3°C, does not decrease the emergence rate (93%) after stratification at 20~30°/3°C in a substrate, with a cyclically alternating warm stage (24+24 h) lasting 16 weeks.
Źródło:
Dendrobiology; 2007, 58; 9-15
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seed dormancy breaking in Crataegus laevigata
Autorzy:
Bujarska-Borkowska, B
Powiązania:
https://bibliotekanauki.pl/articles/41708.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
scarification
stratification
germination
seedling emergence
desiccation
storage
seed dormancy breaking
Crataegus laevigata zob.Crataegus oxyacantha
tree species
shrub species
Crataegus oxyacantha
Opis:
Laboratory experiments were made to determine the optimum conditions for dormancy breaking in the midland hawthorn (Crataegus laevigata (Poir.) DC. = C. oxyacantha L.). Its small applelike fruits should be collected when they are fully ripe (in Poland in October). The nutlets extracted from the fruits must be dried at room temperature to the moisture content of 9–13%. The dormancy of midland hawthorn seeds can be overcome by: (1) stratification in a moist medium: 20~30°C/3°C, 16–20 weeks at 20~30°C (16+8 hrs or 24+24 hrs) followed by 16–18 weeks at 3°C, i.e. to the time when first radicles start to appear; or (2) chemical scarification in concentrated sulphuric acid for 2 or 3 hrs, followed by warm stratification at 27.5°C or 20~30°C for 4 weeks and cold stratification at 3°C, lasting 19–21 weeks, i.e. to the time when first radicles start to appear. The stratified seeds germinate vigorously (in 3–5 weeks) and at a high percentage at temperatures of 3~15°C or 3~20°C (16+8 hrs) and all seedlings emerge in such conditions about 4–6 weeks after sowing. Seed germination after stratification or scarification can be stopped by partial desiccation of seeds. Seed desiccation after stratification to the moisture content of 10–13% and sealed storage at –3°C for one year do not reduce seed germination and seedling emergence rates of the previously pretreated seeds. Storage for 20 months at –3°C of seeds dried after harvest to the moisture content of 14% does not reduce their germination and seedling emergence.
Źródło:
Dendrobiology; 2006, 56; 3-11
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seed dormancy breaking in Crataegus pedicellata
Autorzy:
Bujarska-Borkowska, B
Powiązania:
https://bibliotekanauki.pl/articles/41623.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
scarlet hawthorn
Crataegus pedicellata
seed dormancy breaking
stratification
scarification
germination
seedling emergence
desiccation
Opis:
The effects of stratification and scarification on seed dormancy breaking were compared in scarlet hawthorn (Crataegus pedicellata Sarg. = C. coccinea L). Ripe fruits were collected (in October) and the extracted nutlets were cleaned, and dried to a moisture content of 9–12%. Seed dormancy in this species was broken most effectively by warm-followed-by-cold stratification of nutlets, in a substrate or without any substrate, as well as at 15~25° or 20~30°C, i.e. with a cyclically alternating warm stage (16+8 hrs or 24+24 hrs/cycle) lasting 16–20 weeks, followed by the cold stage at 3°C lasting ca. 20 weeks, i.e. till the appearance of the first germinating seeds. After stratification, emergence rate is equally high (ca 76%) at cyclically alternating temperatures of 3~15°C or 3~20°C (16+8 hrs). Chemical scarification of nutlets in 96% sulphuric acid for 2 hrs, followed by warm-cold stratification at 20~30°/3°C, with a short, 4-weeks warm stage, also ensures a high emergence rate (85–93%). Seed desiccation (in nutlets) slowly to moisture content of 12–14%, after stratification in a substrate or scarification does not reduce the seedling emergence of seeds. Emergence decreased when seeds were desiccated after stratification without any substrate. Results provide new methods of breaking of dormancy and high germination and emergence of hard-coated Crataegus seeds in controlled conditions.
Źródło:
Dendrobiology; 2008, 60; 51-56
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seed dormancy breaking under controlled conditions in ornamental Cotoneaster spp.
Autorzy:
Bujarska-Borkowska, B.
Szuszka, J.
Powiązania:
https://bibliotekanauki.pl/articles/2077757.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Cotoneaster divaricatus
C. horizontalis
C. hupehensis
dormancy
stratification
scarification
germi-
nation
seedling emergence.
Opis:
Seeds of numerous trees and shrubs require specific environmental conditions to initiate ger- mination. In the genus Cotoneaster, seeds often remain dormant in the ground for 1–2 years. Therefore, knowledge of the method of breaking seed dormancy under controlled conditions is needed. Various tem- peratures of stratification and chemical scarification were tested in this work to break deep double seed dormancy under controlled conditions in C. divaricatus, C. horizontalis and C. hupehensis. Fruits were collected in October, when they were fully ripe. The seeds extracted from the fruits were air-dried at room temper- ature to a moisture content of approximately 10%. Fresh and air-dried seeds were subjected to different variants of cold stratification or warm-cold stratification with different alternating temperatures. The hard seeds of C. hupehensis were also scarified in concentrated sulfuric acid, followed by warm stratification. A seed was counted as germinated when a 1–3 mm long radicle appeared. After stratification (ca. 5% seed ger- mination), seeds were tested for germination and emergence. The dormancy of air-dried C. divaricatus and C. horizontalis seeds was broken most effectively by stratification for 12–16 weeks at 20°/30°C (16/8 hours), followed by 15–18 weeks at 3°C. Scarification in concentrated sulfuric acid for 3 hours followed by warm- cold stratification at 20°/30°C (4 weeks) and 3°C (18 weeks) resulted in the highest germination (48%) of C. hupehensis seeds at 3°/20°C (16/8 hours). In our experiment, we demonstrated that the physiological and physical dormancy of Cotoneaster species can be broken under controlled conditions with stratification or stratification combined with scarification methods
Źródło:
Dendrobiology; 2019, 81; 97-104
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 49

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