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Wyszukujesz frazę "seed dormancy" wg kryterium: Wszystkie pola


Tytuł:
Wpływ obniżonego ciśnienia atmosferycznego na proces indukowania i ustępowania spoczynku u nasion czereśni ptasiej (Prunus avium L.)
Influence of reduced atmospheric pressure on the process of inducing and recession of dormancy in seed of mazzard cherry (Prunus avium L.)
Autorzy:
Wrzesniewski, W.
Powiązania:
https://bibliotekanauki.pl/articles/823516.pdf
Data publikacji:
1991
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
dendrologia
drzewa
czeresnia ptasia
Prunus avium
nasiona
spoczynek nasion
stratyfikacja
cisnienie obnizone
zarodki roslinne
hodowla in vitro
Źródło:
Sylwan; 1991, 135, 09
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ krótkoterminowego przechowywania nasion osiemnastu genotypów pomidora (Solanum lycopersicum L.) na ich kiełkowanie
Effect of short-term storage of seeds of eighteen tomato (Solanum lycopersicum L.) genotypes on their germination
Autorzy:
Chojnowski, M.
Wawrzyniak, A.
Powiązania:
https://bibliotekanauki.pl/articles/2118938.pdf
Data publikacji:
2021
Wydawca:
Instytut Ogrodnictwa
Tematy:
tomato
genotypes
seed storage
germination
primary dormancy
Opis:
The aim of the research was to determine the occurrence of primary dormancy in seeds of 18 tomato genotypes (Solanum lycopersicum L.) – 16 cultivars and two local genotypes – regenerated for the active collection of the National Institute for Horticultural Research. The plants were grown in the field in accordance with the adopted methodology of seed reproduction in the collection of genetic resources of vegetable plants. Tomato fruits were harvested twice a week from July 18 to September 26, 2019. Immediately after harvest, the seeds were extracted from the fruit, cleaned and dried according to FAO standards for gene banks. The seeds prepared in this way were stored for a period of sixty weeks at a temperature of 4±2°C in airtight containers with the addition of silica gel. During this period, after twenty, forty and sixty weeks of storage, their germination was tested. The studied tomato genotypes differed significantly in terms of depth of primary dormancy and rate of releasing from dormancy. Two of the tested cultivars – ‘Parteno’ and ‘Reper’, were characterized by seed dormancy at the level of 44.5% and 35.5%, two genotypes – ‘Amber’ and the local genotype POLPOB17-27 were characterized by dormancy levels of 15% and 18%. Seeds of two of the genotypes studied that did not show primary dormancy twenty weeks after harvest – ‘Zealand’ and the local genotype POLPOB17-28 – after storage for sixty weeks showed a reduced germination rate and a longer mean germination time. It is concluded that the optimum time for testing the germination of tomato seeds stored after harvest at 4 °C is forty weeks after harvest. The level of primary dormancy of the seeds is then the lowest, but the induction of secondary dormancy does not occur yet. When testing the seed germination in an earlier period, dormancy breaking procedures should be considered to obtain correct results.
Źródło:
Zeszyty Naukowe Instytutu Ogrodnictwa; 2021, 29; 15-24
2300-5882
2391-8969
Pojawia się w:
Zeszyty Naukowe Instytutu Ogrodnictwa
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:
The effect of apple seed stratification with growth regulators on breaking the dormancy of seeds, the growth of seedlings and chlorophyll fluorescence
Autorzy:
Gornik, K.
Grzesik, M.
Janas, R.
Zurawicz, E.
Chojnowska, E.
Goralska, R.
Powiązania:
https://bibliotekanauki.pl/articles/1912.pdf
Data publikacji:
2018
Wydawca:
Instytut Ogrodnictwa
Tematy:
apple seed
seedling growth
Gold Milenium cultivar
Lobo cultivar
Sampion cultivar
seed dormancy removal
seed germination
stratification
growth regulator
chlorophyll fluorescence
Źródło:
Journal of Horticultural Research; 2018, 26, 1
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stratification conditions determining seed dormancy release of European bladder nut [Staphylea pinnata L.]
Autorzy:
Tylkowski, T
Powiązania:
https://bibliotekanauki.pl/articles/57767.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Staphylea pinnata
stratification condition
botany
sowing pretreatment
European bladder nut
germination
seed dormancy
shrub
Opis:
European bladder nut has its northern limit in Poland and is legally protected. Climatic conditions, edible seeds attractive for small animals and seed dormancy to a large extent affect its restocking under natural conditions. The aim of this study was to determine conditions for seed dormancy release. Nuts dried after collection to ca 11% of moisture content (fresh weight basis) may be stored without loss of seed viability for over 1 year in a cold store at the temperature of -3oC. For the purpose of seed dormancy release nuts need to be stratified. Seed dormancy release was found highest after the application of warm-followed-by-cold stratification, first for 4-6 weeks at the temperature of 15oC or at cyclically alternating temperature of 10~20oC (24+24 h/cycle), followed by 16-18 weeks at 3oC. Seeds germinate at 3oC with the same rate as at cyclically alternating temperature of 3~15oC (16+8 h/day). Drying of nuts at room temperature to approx. 11% during the warm stratification phase (after 2 or 4 weeks) and further stratification resulted in a significant increase in seed germinability. In some seed lots scarification of nuts (dried during the warm stratification phase) contributes to a further significant increase of seed germinability.
Źródło:
Acta Societatis Botanicorum Poloniae; 2007, 76, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seed Germination Plasticity of Two Endangered Species of Ferula in the Context of Climate Change
Autorzy:
Shanjani, Parvin Salehi
Mousavi, Amir
Farsad, Faeze Rasoulzadeh
Powiązania:
https://bibliotekanauki.pl/articles/2199581.pdf
Data publikacji:
2020-11-27
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Dormancy
global warming
Iran
highland
local adaptation
Opis:
Ferula assa-foetida and F. gummosa, Apiaceae, are important endemic and endangered medicinal plants. Survival of the species is threatened by climate change, overexploiting (as source of oleo-gum resin and for-age) and lack of organized cultivation. Cultivation of these valuable medicinal plants is restricted by insuffi-cient domestication knowledge. Germination characteristics of different populations of Ferula taxa were studied with the aim of describing and comparing their responses to continuous cold stratification condition. Germination cues for the species were complex, with dormancy mechanisms present to restrict germination until cold stratification are fulfilled. Results indicated that a period of 4 weeks of stratification is sufficient for germination of F. assa-foetida, but optimal germination of F. gummosa require stratification for periods of 8 weeks. Both species were able to germinate at very low temperatures (4°C). Within-taxon differences in dor-mancy breaking and seedling emergence may interpret as local adaptations. The continued regeneration and propagation of the species in the wild will depend on the temperature and moisture status of the soil during winter and the maintenance of conditions suitable for stratification for an appropriate length of time.
Źródło:
Plant Breeding and Seed Science; 2019, 80; 13-33
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seed Germination Plasticity of Two Endangered Species of Ferula in the Context of Climate Change
Autorzy:
Shanjani, Parvin Salehi
Mousavi, Amir
Farsad, Faeze Rasoulzadeh
Powiązania:
https://bibliotekanauki.pl/articles/2199729.pdf
Data publikacji:
2020-06-30
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
dormancy
global warming
highland
Iran
local adaptation
Opis:
Ferula assa-foetida and F. gummosa, Apiaceae, are important endemic and endangered medicinal plants. Survival of the species is threatened by climate change, overexploiting (as source of oleo-gum resin and forage) and lack of organized cultivation. Cultivation of these valuable medicinal plants is restricted by insufficient domestication knowledge. Germination characteristics of different popula-tions of Ferula taxa were studied with the aim of describing and comparing their responses to continu-ous cold stratification condition. Germination cues for the species were complex, with dormancy mechanisms present to restrict germination until cold stratification are fulfilled. Results indicated that a period of 4 weeks of stratification is sufficient for germination of F. assa-foetida, but optimal germi-nation of F. gummosa require stratification for periods of 8 weeks. Both species were able to germi-nate at very low temperatures (4°C). Within-taxon differences in dormancy breaking and seedling emergence may interpret as local adaptations. The continued regeneration and propagation of the species in the wild will depend on the temperature and moisture status of the soil during winter and the maintenance of conditions suitable for stratification for an appropriate length of time.
Źródło:
Plant Breeding and Seed Science; 2019, 79; 71-90
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
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
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 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 characteristics of Amygdalus arabica in Adıyaman region of Turkey
Autorzy:
Yilmaz, M.
Kalkan, M.
Demirbağ, H.
Powiązania:
https://bibliotekanauki.pl/articles/2078191.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
mountain almond tree
hot-arid areas
seed germination
prechilling
dormancy
Opis:
Mountain almond (Amygdalus arabica) is a shrub with naturally distributing in Turkey, Iran, Iraq, Syria, Jordan and Saudi Arabia. A. arabica also known as bitter almond and can reach up to 2.5 m. The natural distribution of mountain almond is generally in the Southeast Region of Turkey. The present study carried out to determine the morphological and physiological characteristics of the seed of mountain almond. The seeds were collected from three different populations of A. arabica in Adıyaman. For different each populations seed weight, height, width, thickness, and 1000-seed weight were measured in the laboratory. Morphological characteristics of A. arabica seeds varied according to their populations. Seed germination tests were conducted at 20 °C, after prechilling for 0, 3, 6, and 9 weeks at 4 °C. Prechilling treatments of 3 weeks were insufficient, but 6 and 9 weeks of prechilling were found to eliminate seed dormancy and led to the highest germination percentage. The average germination percentage after 0, 3, 6, and 9 weeks of prechilling were 3.1%, 49.6%, 80.4%, and 81.1%, respectively. The average mean germination time was approximately between 8 and 10 days.
Źródło:
Dendrobiology; 2020, 84; 49-57
1641-1307
Pojawia się w:
Dendrobiology
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:
Redox-mediated regulation of wheat seed dormancy revealed through modification-specific proteomics
Autorzy:
Bykova, N.
Hoehn, B.
Rampitsch, C.
Hu, J.
Fan, T.
Powiązania:
https://bibliotekanauki.pl/articles/80787.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
seed dormancy
wheat
Triticum aestivum
reactive oxygen species
hormonal balance
cysteine
proteomics
abiotic stress
biotic stress
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:
Plausible Mechanisms by Which Ultrasonic Waves Affect Seeds
Autorzy:
Pour, Mohammad Eteghadi
Hobbi, Mahsa
Ghasemi, Hadi
Nazari, Meisam
Powiązania:
https://bibliotekanauki.pl/articles/2199664.pdf
Data publikacji:
2016-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
cell area
barley
germination
seed dormancy breaking
sonication
Opis:
To study the effect of sonication on the seed germination percentage and rate as well as the cell area of barley (Hordeum vulgare L.) a laboratorial experiment was performed as Completely Randomized Design (CRD) with 3 replications. The results indicated that the ultrasonic waves affect the seed germination, germination rate and cell area significantly (at 0.05). The results of the mean comparison tests (LSD, 0.05) showed that the highest germination percentage (100 %), germination rate and cell area (1370.71 µ2 ) is achieved through 15 minutes exposure to ultrasonic waves. It is concluded that weakening the seed’s cell wall rigidity by sonication results in more and faster water imbibition by the cells and improved germination.
Źródło:
Plant Breeding and Seed Science; 2016, 74; 85-92
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physiological and physical seed dormancy of some hypericum species growing in Turkey.
Autorzy:
Çırak, Cüneyt
Ayan, Ali Kemal
Kevseroğlu, Kudret
Powiązania:
https://bibliotekanauki.pl/articles/2199016.pdf
Data publikacji:
2006-06-22
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
double dormancy
germination
Hypericum androsaemum
H. lydum
H. scabrum
H. tetrapterum
presoaking treatments
Opis:
To investigate the nature of dormancy in Hypericum androsaemum, H. scabrum, H. lydum and H. tetrapterum seeds which did not show germination under nor mal laboratory conditions. The 15 day long germination experiment under the constant light pre ceded by 30 min soaking in water (tap water, 40, 50 and 60°C hot water), GA3 (50, 100 and 150 ppm) and H2SO4 (1, 2 and 3%) was per formed. The germination response to the pre-soaking treatments was variable and discussed as a possible result of double dormancy involving partially dormant embryo and a chemical inhibitor for H. androsaemum and H. scabrum. Seed germination was restricted only by hard seed coat in H. lydum, and H. tetrapterum indicating the presence of physical dormancy.    
Źródło:
Plant Breeding and Seed Science; 2006, 53; 3-8
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł

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