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Wyświetlanie 1-15 z 18
Tytuł:
Fizjologiczne aspekty ustepowania spoczynku nasion jesiona wynioslego Fraxinus excelsior L.
Autorzy:
Tylkowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/816699.pdf
Data publikacji:
1995
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
nasiona
spoczynek nasion
jesion wyniosly
stratyfikacja nasion
Fraxinus excelsior
dendrologia
fizjologia roslin
drzewa lesne
Źródło:
Sylwan; 1995, 139, 09; 53-59
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przysposabianie spoczynkowych nasion do siewu przez cyklicznie powtarzane moczenie w wodzie. III. Klon jawor Acer pseudoplatanus
Autorzy:
Tylkowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/817641.pdf
Data publikacji:
1995
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
nasiona spoczynkowe
Acer pseudoplatanus
nasiona
hodowla lasu
nasiennictwo
lesnictwo
moczenie
klon jawor
Źródło:
Sylwan; 1995, 139, 07; 15-21
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przysposabianie spoczynkowych nasion do siewu przez cyklicznie powtarzane moczenie w wodzie. II. Lipa drobnolistna Tilia cordata Mill.
Autorzy:
Tylkowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/825214.pdf
Data publikacji:
1994
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
nasiona spoczynkowe
Tilia cordata
nasiona
lipa drobnolistna
hodowla lasu
nasiennictwo
lesnictwo
moczenie
Źródło:
Sylwan; 1994, 138, 12; 67-72
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ łuszczenia i czasu przechowywania nasion olszy czarnej (Alnus glutinosa (L.) Gaertner) na kiełkowanie, wschody i wzrost siewek
Effect of seed extraction, seed lot, and storage duration on germination capacity and seedling emergence of Alnus glutinosa (L.) Gaertner
Autorzy:
Tylkowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/991300.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
nasiennictwo
drzewa lesne
olsza czarna
Alnus glutinosa
nasiona
luszczenie nasion
czas przechowywania
kielkowanie
wschody
siewki
wzrost roslin
black alder
seed storage
containerized cultivation
seedling growth
Opis:
Black alder, a major forest tree species in Europe, thrives in moist soils. During the seeds extraction (nutlets) from the cones, the heaviest seeds were observed to fall out first. Seed weight was not correlated to the ability of germination; no significant differences were observed between the heaviest and the lightest seeds. Seeds with a fresh mass moisture content of 8−9% after storage in –3°C retained their high germinability for six winters. However, seedling emergence decreased gradually when tested in cell trays in an unheated greenhouse. Along with the decline of seedling emergence, the participation of high seedlings (≥25 cm) decreased and participation of small seedlings increased simultaneously. These results question whether the practice of storing seeds in –3°C for long time is the best method of germplasm preservation.
Źródło:
Sylwan; 2014, 158, 11; 821-828
0039-7660
Pojawia się w:
Sylwan
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:
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
Artykuł
Tytuł:
Seed germination and seedling emergence in Hippophae rhamnoides L.
Autorzy:
Tylkowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/40984.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Opis:
In contrast to earlier reports, in this study Seabuckthorn seeds collected from ripe fruits proved to be non-dormant. Most of them germinated quickly at high temperatures (e.g. cyclically alternating temperatures of 20~30°C daily for 16 and 8 hours, respectively). At lower temperatures (3~20°C), seeds did not germinate or germinatedslowly, but stratification at 3°C for 4–6 weeks increasedtheir germination rate to 90–100% within 2–3 weeks. Seedling emergence in the open nursery proved to be risky, even after 6–8 weeks of seed stratification, so spring sowing in the greenhouse (or plastic tunnel) is recommended.
Źródło:
Dendrobiology; 2010, 63
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Improving seed germination and seedling emergence in the Juniperus communis
Autorzy:
Tylkowski, T
Powiązania:
https://bibliotekanauki.pl/articles/41555.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
juniper
Juniperus communis
seedling emergence
seed germination
seed cone
propagation
individual variability
natural regeneration
Opis:
The observed juniper decline, lack of natural regeneration, and disappearance of numerous populations of the common juniper in Poland, were the major reasons for initiation of research on its sexual propagation and seedling production. This study shows that seed dormancy in this species is broken by warm-cold stratification at 15°C/3°C, for 14+12 weeks, respectively. Seed drying for 72 h at room temperature in the middle of the warm phase (i.e. after 4–8 weeks of stratification at 15°C) and the following cold stratification at 3°C, cause a significant increase in seed germination capacity at cyclically alternating temperatures of 3~15°C, and in seedling emergence in growing trays (67 cells each) in a greenhouse. However, seedling emergence was over 2-fold to 4-fold lower in an open nursery than in the greenhouse. After sowing in the nursery, secondary dormancy was probably induced, because some seeds germinated in the following year. Some very young, 2-year-old seedlings started to produce male or rarely female cones. This study also showed that soil conditions of mother plants can influence the pattern of seed germination and seed ling emergence.
Źródło:
Dendrobiology; 2009, 61; 47-53
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A vigour test for quality assessment of stored beech (Fagus sylvatica L.) nuts
Autorzy:
Tylkowski, T
Powiązania:
https://bibliotekanauki.pl/articles/41627.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
seed quality
beechmast
vigor test
quality assessment
Fagus sylvatica
beech
nut
pathogenic fungi
seedling emergence
stored beech
Opis:
Many seed lots of beech (Fagus sylvatica L.) nuts are characterized by various levels of infection with pathogenic fungi, such as Fusarium, Rhizoctonia and Cylindrocarpon spp. Favourable conditions for fungal infection of beechnuts are created especially during their long-term provisional storage without earlier drying to the moisture content of 8-10%. Strongly infected seed lots are not suitable for long-term storage. During the pre-sowing treatment of seeds by stratification without medium, fungi develop under the moist conditions and infect many healthy seeds. To assess the quality of beechnuts, a vigour test has been developed. Seeds removed from the pericarp (4 replications of 50 nuts each) are placed in boxes between two layers of moist tissue paper and incubated at 25°C for 120 hours. After this period decayed seeds (mouldy seeds) are excluded, and the remained are subjected to embryo viability by the tetrazolium test. When the percentage of decaying seeds (including those with necroses) does not exceed 10-15%, such seed lot can be used for long-term storage. If the percentage exceeds 50%, the seed lot should be considered unsuitable both for storage and for pre-sowing treatment, because only a very small proportion of seeds will emerge in the nursery.
Źródło:
Dendrobiology; 2002, 47 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seed storage, germination and seedling emergence in Rhamnus catharticus
Autorzy:
Tylkowski, T
Powiązania:
https://bibliotekanauki.pl/articles/41131.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
common buckthorn
Rhamnus catharticus
North America
seed storage
germination
seedling emergence
invasive species
landscape shrub
shrub
tree
medicinal plant
Opis:
This study was aimed to improve the understanding of germination ecology and to explain the invasive character of the common buckthorn (Rhamnus catharticus) in North America. Its fully mature seeds are characterized by a lack of dormancy. In laboratory conditions, favourable thermal conditions were identified for seed storage, germination and seedling emergence. At the cyclically alternating temperature of 20~30°C (16+8 h daily), seeds of this species showed a high germination rate within few weeks. Two other thermal variants, 3~15°C and 3~20°C (16+8 h daily), were much less effective for seed germination. However, cold stratification (at 3°C) in a moist mixture of peat and sand, lasting 4–8 weeks, caused a remarkable increase in germination rate also at 3~15°C. Seeds extracted from ripe fruits and dried (to a moisture content of about 10%) showed high germination and emergence rates after storage for 3.5 years at –3°C.
Źródło:
Dendrobiology; 2007, 58; 67-72
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Betula pendula seed storage and sowing pre-treatment: effect on germination and seedling emergence in container cultivation
Autorzy:
Tylkowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/41787.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Betula pendula
seed storage
sowing
pretreatment
germination
seedling emergence
container cultivation
Opis:
Irregular seed crop in Betula pendula (Silver Birch) is a reason to create seed reserves, ensuring nursery production in years of crop failure. This study investigated the effects of seed moisture content and storage temperature on germinability and seedling emergence in container cultivation. Mature catkins were collected separately from 3 trees. The mixture of winged nuts and scales was dried to 3 levels of moisture content and stored at 3°C, –3°C and –10°C. After storage for 3, 5 and 6 years, the seeds were separated from scales and next dewinged and sorted in acetone into empty and filled seeds. Cleaned nuts were germinated in the Jacobsen germinator. Besides, to assess seedling emergence, seeds were sown on the surface of peat mixed with perlite, in multi-cell trays under a plastic tunnel. Significant differences in germinability were detected depending on the mother tree, seed moisture content and storage time. The viability of seeds stored at –10°C remained unchanged for 6 years regardless of moisture content (ca. 8–12%). Seeds stored at higher temperatures lost their germinability faster. An unexplained increase in seedling emergence was observed after extended seed storage at –10°C, in contrast to a gradual decrease in seedling emergence after extended storage at –3°C.
Źródło:
Dendrobiology; 2012, 67
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przysposabianie spoczynkowych nasion do siewu przez cyklicznie powtarzane moczenie w wodzie. I. Jesion wyniosly Fraxinus excelsior L.
Autorzy:
Tylkowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/812627.pdf
Data publikacji:
1994
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
nasiona spoczynkowe
nasiona
hodowla lasu
jesion wyniosly
nasiennictwo
Fraxinus excelsior
lesnictwo
moczenie
Źródło:
Sylwan; 1994, 138, 11; 53-59
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warunki przechowywania, kielkowania i wschodzenia nasion wiazu gorskiego [Ulmus glabra Huds.] i wiazu polnego [Ulmus minor Mill.]
Autorzy:
Tylkowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/818470.pdf
Data publikacji:
1999
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
wiaz gorski
kielkowanie
Ulmus glabra
nasiona
wschody
wiaz polny
nasiennictwo
Ulmus minor
lesnictwo
warunki przechowywania
drzewa lesne
Źródło:
Sylwan; 1999, 143, 02; 39-46
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Skuteczność przedsiewnych metod skaryfikacji nasion robinii akacjowej
Effectiveness of pre-sowing scarification methods of black locust seeds
Autorzy:
Tylkowski, T.
Grupa, R.
Powiązania:
https://bibliotekanauki.pl/articles/1009551.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
nasiennictwo
drzewa
robinia akacjowa
Robinia pseudoacacia
skaryfikacja nasion
skutecznosc
nasiona
zdolnosc kielkowania
wschody
robinia pseudoacacia
seed germination
scarification
seedling emergence
Opis:
Dormancy of black locust seed is exogenous imposed by hard seed coat a physical barrier to water enters to embryo. Seeds need scarification of seed coat before sowing. In practice, this can be done in different (thermal, mechanical, chemical and natural) methods. Effects of the previous two of them were compared on laboratory germination capacity and seedling emergence in the forest nursery. Statistically higher germinability and seedling emergence were obtained after mechanical scarification of seeds. After inconsiderable modification, the device for mechanical seed extraction from larch cones can be used as mechanical scarifier of black locust seeds.
Źródło:
Sylwan; 2010, 154, 01; 33-40
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 18

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