Temat: seed dormancy - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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Skocz do pozycji: 2.

Tytuł:: Hormonalna regulacja procesów ontogenetycznych u roślin
The hormonal regulation of ontogenetic processes in plants
Autorzy:: Wilmowicz, E.
Marciniak, K.
Kucko, A.
Kopcewicz, E.
Powiązania:: https://bibliotekanauki.pl/articles/791663.pdf
Data publikacji:: 2016
Wydawca:: Wyższa Szkoła Zarządzania Środowiskiem w Tucholi
Tematy:: wzrost roslin
rozwoj roslin
drzewa
czynniki srodowiska
ontogeneza roslin
regulacja hormonalna
fitohormony
kielkowanie
nasiona
spoczynek nasion
wzrost wegetatywny
wzrost generatywny
starzenie sie
plant growth
plant development
tree
environmental aspect
phytohormone
plant ontogenesis
seed germination
seed dormancy
vegetative development
generative development
senescence
Źródło:: Zarządzanie Ochroną Przyrody w Lasach; 2016, 10
2081-1438
2391-4106
Pojawia się w:: Zarządzanie Ochroną Przyrody w Lasach
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Dormancy breaking in Savin juniper [Juniperus sabina L.] seeds
Autorzy:: Tylkowski, T
Powiązania:: https://bibliotekanauki.pl/articles/56737.pdf
Data publikacji:: 2010
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: stratification
dormancy breaking
seed dormancy
seedling
propagation
Savin juniper
shrub
natural stand
Pieniny Mountains
Juniperus sabina
seed
vegetation season
Opis:: Savin juniper (Juniperus sabina L.) is a relict shrub in Poland with only one natural stand in Pieniny Mts. Se- eds require warm followed by cold stratification to overcome dormancy. Application of temperature regime at 20°/3°C layout, for 14 and 17 weeks respectively, is more effective than stratification at 15°/3°C. Interruption of warm stratification phase after 7 weeks and seeds drying at room temperature for 3-days with warm stratification follow-on resulted in increasing of germination capacity from 25% to approximately 45%. Germinated seeds pricked to substrate into containers gave seedlings 3 cm high when cultivated under plastic tunnel in the first vegetation season.
Źródło:: Acta Societatis Botanicorum Poloniae; 2010, 79, 1; 27-29
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of dormancy breaking in stored seeds on germinability and seedling emergence of Tilia platyphyllos
Autorzy:: Tylkowski, T
Powiązania:: https://bibliotekanauki.pl/articles/41170.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: dormancy breaking
seed
stored seed
germinability
seedling emergence
Tilia platyphyllos
scarification
stratification
seed viability
Opis:: Fruits of large-leaved lime dried to 10% may be stored for 16 years in sealed containers at –3°C without loosing seed viability. Dormancy of seeds, extracted from hard fruit coats, may be released after chemical scarification in concentrated sulphuric acid for 10 minutes, followed-by stratification without any medium (chilling) at the temperature of 3°C, for 20–24 weeks, i.e. until the first seeds start to germinate. After such pretreatment, during the germination test conducted at alternating temperatures 3~15°C (16 + 8 hours/day) seeds germinate near 90% in several weeks. For seedling production scarified and stratified seeds should be sown in early spring into trays under a plastic tunnel which ensures a high percentage of seedlings emergence. Sowing of the pretreated seeds in spring in a open nursery gives poor results.
Źródło:: Dendrobiology; 2006, 56; 79-84
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

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

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Skocz do pozycji: 6.

Tytuł:: Functional analysis of ABI5 and RGL2 in dormancy breaking of Acer platanoides L. seeds
Autorzy:: Staszak, A.
Guzicka, M.
Maslowska, S.
Pawlowski, T.A.
Powiązania:: https://bibliotekanauki.pl/articles/80156.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: dormancy breaking
germination
Acer platanoides
seed
environment condition
Norway maple
conference
gibberellic acid
abscisic acid
functional analysis
ABI5 expression
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

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Skocz do pozycji: 7.

Tytuł:: Evaluation of several methods for breakind dormancy of bitter vetch seeds (Vicia Ervilia L.)
Autorzy:: Sepehri, Ali
Rouhi, Hossein Reza
Sefidkhani, Leila
Powiązania:: https://bibliotekanauki.pl/articles/2199637.pdf
Data publikacji:: 2015-06-20
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: bitter vetch
seed dormancy
germination
Opis:: This study analysed the effects of different treatments on breaking dormancy and germination of bitter vetch (Vicia ervilia L.) freshly harvested seeds for seeding immediately. Partial scarified seeds (30 seconds with sandpaper) were subjected to different treatments including: GA3 (250, 500 and 750 ppm), KNO3 (0.1, 0.2 and 0.3% w/v), cold stratification (2, 4 and 6 days), sulfuric acid (25, 50 and 75 seconds), hot water (90°C; for 2.5 and 5 minutes), hydropriming via seed soaking in distilled water (4 and 8 hours) and mechanical scarification. Among the mentioned treatments, cold stratification for 6 days had a best effect on germination related parameters final germination percentage, mean germination time and vigour index than the other periods. In contrast to scarification with acid and hot water, mechanical scarification improved germination parameters but this effect was lower than the cold stratification. The results suggest that bitter vetch seed has both physical and physiological dormancy.
Źródło:: Plant Breeding and Seed Science; 2015, 71; 57-66
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Loss of tolerance to desiccation in germinated Norway maple (Acer platanoides L.) seeds. Changes in carbohydrate content
Autorzy:: Pukacka, S.
Powiązania:: https://bibliotekanauki.pl/articles/41745.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: glucose
stratification
viability
fructose
Acer platanoides
desiccation
tolerance loss
galactose
seed
stachyose
sucrose
Norway maple
raffinose
carbohydrate content
dormancy
Opis:: Carbohydrates were analyzed in Norway maple embryo axes and cotyledons after imbibition, in the middle of cold stratification, before germination and during radicle protrusion to 8-10 mm and 20-25 mm. Simultaneously desiccation tolerance of seeds was determined by tetrazolium (TTC) test, after desiccation of seeds to 10-20% of water content. The cotyledons were tolerant to desiccation throughout all stratification and germination period. Embryo axes became sensitive to desiccation when hypocotyls-radicle protrusion reached 20-25 mm length. In this period the significant increase of monosaccharides: glucose, fructose and galactose in embryo axes occurred. This was not observed in cotyledons. During the germination period significant decrease of sucrose and raffinose content was noted in embryo axes and cotyledons. Relatively less changes appeared in stachyose content in embryo axes while in cotyledons it decreased evidently. The mass ratio of sucrose to oligosaccharides was higher in cotyledons of germinated seeds. The marked decrease of mass ratio of oligo to monosaccharides was observed in embryo axes in the last period of germination. The role of carbohydrates in loosing tolerance to desiccation in germinated Norway maple seeds is discussed.
Źródło:: Dendrobiology; 2001, 46
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

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

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Skocz do pozycji: 10.

Tytuł:: Dormancy release and germination in recalcitrant Aesculus hippocastanum seeds
Autorzy:: Obroucheva, N V
Lityagina, S.V.
Powiązania:: https://bibliotekanauki.pl/articles/41724.pdf
Data publikacji:: 2007
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: dormancy
germination
cytokinin
growth initiation
seed
Aesculus hippocastanum
horse chestnut
embryo dormancy
Balkan Peninsula
Opis:: The investigation of dormancy release in Aesculus hippocastanum seeds was aimed at estimating the proportion of coat-imposed to embryo dormancy, and studying the growth initiation providing embryo dormancy release. During winter, horse chestnut seeds exhibited 16–17 week-lasting deep dormancy, which predominantly was determined by coat-imposed dormancy. Embryo dormancy lasted for 11–12 weeks of wet cold stratification. Embryo dormancy was weak, even the embryo axes excised from deeply dormant seeds were capable of extending to the size exceeding the axis length in intact seeds at radicle protrusion. Embryo dormancy release manifested itself in gradually increasing growth capacity of both embryo axes and cotyledonary petioles. The growth initiation in horse chestnut seeds occurs only by cell elongation. During growth initiation, a more rapid fresh weight gain was observed in comparison with length increment, thus indicating that accumulation of osmotically active substances and active water uptake by embryo axis cells were ahead of their increasing longitudinal cell wall extensibility. Cell wall loosening appeared to be directly related to embryo dormancy release. The hormonal regulation of embryo dormancy release in horse chestnut seeds is discussed.
Źródło:: Dendrobiology; 2007, 57; 27-33
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Activity of phosphofructokinase and phosphoenolopyruvate carboxylase in Norway maple (Acer platanoides L.) seeds during dormancy breaking
Autorzy:: Krawiarz, K
Szczotka, Z.
Powiązania:: https://bibliotekanauki.pl/articles/41615.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: phosphoenolopyruvate carboxylase
dormancy breaking
glucose
activity
sucrose
phosphofructokinase
Norway maple
Acer platanoides
seed
Opis:: We analysed changes in the activity of phosphofructokinase (PFK) and phosphoenolopyruvate carboxylase (PEPC), and in the glucose and sucrose contents of Norway maple seeds stratified at 3°C (dormancy broken) or treated at temperature 15°C (dormancy not broken). We found that changes in the activity of enzymes are not linear, and 2-3 stages may be distinguished. Dormancy breaking and seed germination is associated with a high activity of PFK and PEPC, and a high glucose level in embryo axes.
Źródło:: Dendrobiology; 2002, 47
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Dormancy breaking and seed germination of the annual weeds Thlaspi arvense, Descurainia sophia and Malcolmia africana (Brassicaceae)
Autorzy:: Karimmojeni, H.
Taab, A.
Rashidi, B.
Bezrafshan, A.H.
Powiązania:: https://bibliotekanauki.pl/articles/66908.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: seed dormancy
seed germination
annual plant
weed
Thlaspi arvense
Descurainia sophia
Malcolmia africana
African mustard
Brassicaceae
Opis:: In Iran, Descurainia sophia, Malcolmia africana, and Thlaspi arvense are abundantly found as importunate weeds in winter cereal. Understanding the timing of seed germination under natural conditions is crucial for learning how to manage these annual weeds. Therefore, this study was conducted to evaluate the effect of soil burial, dry storage, cold stratification, KNO3, GA3, and scarification on the seed dormancy and germination of these three species. Species had significantly different responses to the treatment. In D. sophia, seeds buried at a depth of 10 cm for 60 days (55%), and seeds dry stored at 20°C for 180 days (45%) showed the highest level of germination. In M. africana, the germination percentage reached 95% when seeds buried at a depth of 1 cm were soaked in a GA3 concentration of 150 ppm. T. arvense had the lowest level of germination compared to the other species. The highest percentage of T. arvense germination was obtained in seeds treated with 150 ppm GA3. Potassium nitrate partly increased germinability in seeds of M. africana, which initially were less dormant than those of T. arvense and D. sophia.
Źródło:: Journal of Plant Protection Research; 2014, 54, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Effects of tegument, endosperm, cold treatment and harvest date on germination of wild olive
Autorzy:: Hannahi, H.
Marzouk, S.
El Gazzah, M.
Powiązania:: https://bibliotekanauki.pl/articles/41441.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: tegument
endosperm
cold treatment
harvest date
seed
germination
wild olive tree
olive tree
Olea europaea
dormancy
plant species
Opis:: Wildolive seeds (Olea europaea L. var. sylvestris), calledoleaster do not germinate when placedunder favourable conditions. In a series of experiments the effects of the harvest date, the endosperm, the tegument, andthe coldtreatment were evaluatedon germination of seeds andembryos. The germination percentage of embryos and seeds harvested at different harvest dates increased during October month, these percentages decreased during November month, whereas no seeds and embryos harvested on the middle of December germinated. Embryo germinability was always higher than seed germinability, and this may be due to an inhibiting effect of the teguments and the endosperm on seed germination. Such dormancy, which gradually increased during maturation, could reside mainly in the endosperm and partly within the embryo. The cold treatment at 4°C for four to thirteen days increased seed and embryo germinability, whereas lengthening time at this temperature showeda negative effect on seedgermination. The germination of seeds andembryos from six wildolive trees was also examinedby recording the germination percentage andminimum imbibition time (Tmi).
Źródło:: Dendrobiology; 2011, 65
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Breaking of seed dormancy in Iris suaveolens Boiss. et Reuter under in vitro conditions
Autorzy:: Hajyzadeh, M.
Yildirim, M.U.
Mokhtarzadeh, S.
Sarihan, E.O.
Khawar, K.M.
Powiązania:: https://bibliotekanauki.pl/articles/12680343.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:: Iris suaveolens
ornamental plant
seed dormancy
dormancy breaking
in vitro condition
Opis:: Iris species have great economic importance for their use in ornamental and pharmaceutical industry. Flora of Turkey reports about 43 local taxons of which 16 are endemic. Iris suaveolens Boiss. et Reuter is an endemic species with high seed dormancy and has high tolerance to cold and drought. This study focused on seed dormancy break of I. suaveolens under in vitro conditions. In the first experiment, the seeds were given stratification treatment on MS medium containing different concentrations of BAP with or without NAA. The 2nd experiment reports effects of alternative combinations of cold (at 4°C, 24 h dark) – warm (16 h light photoperiod) conditions on medium containing different concentrations of plant growth regulators on agar solidified MS medium. Both experiments showed about 8.33% seed germination against 64.5% seed viability as confirmed by tetrazolium test. All germinating seeds were abnormal and very weak. In the third experiment, 10 minutes acid scarified seeds cultured at 24°C in 16 h light photo period on MS medium achieved 60.0% germination. Similar treatment under cold + dark condition was inhibitory and failed to show identical results. This underlines the importance of acid scarification, photoperiod and warm treatments of I. suaveolens seeds to break seed dormancy. All germinated seeds showed normal growth and development under field conditions.
Źródło:: Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 4; 15-24
1644-0692
Pojawia się w:: Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:: Biblioteka Nauki