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Wyświetlanie 1-3 z 3
Tytuł:
Effect of polluted environment on the female and male strobili bearing of European Scots pine provenances
Autorzy:
Chalupka, W.
Rozkowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/41518.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Scotch pine
pollen
male flower
polluted environment
provenance
Pinus sylvestris
male
female cone
female
Opis:
Studies on female and male strobili production as well as on pollen production and viability were performed at a polluted (Luboń) and a control (Kórnik) sites. Female strobili bearing per tree and total length of male strobili produced per tree were significantly higher in Luboń than in Kórnik and the stand density and tree crown exposition to sunlight were likely responsible for that result. Percentage of pollen germination was not affected by any variables studied. Neither provenance nor provenance x site interactions were found.
Źródło:
Dendrobiology; 2000, 45
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental pollution changes in membrane lipids, antioxidants and vitality of Scots pine [Pinus sylvestris L.] pollen
Autorzy:
Pukacki, P M
Chalupka, W.
Powiązania:
https://bibliotekanauki.pl/articles/57005.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Scotch pine
pollen
pollen grain
Pinus sylvestris
environment pollution
membrane
vitality
fatty acid
antioxidant
freezing stress
membrane lipid
phospholipid
Opis:
Investigations were carried out on pollen grains of Scots pine (Pinus sylvestris L.) collected from trees at 1.5, 3, 4 km and control, 20 km from the Luboń factory producing mineral fertilisers. The percentage of germination of pollen formed close to the pollution source was ca 20% lower compared to the control pollen. Lowered vitality of the pollen was effected in changes of the structure of cytoplasmic membranes. Pollen from the polluted area contained ca 15% less total phospholipids, mainly phosphatidylcholine and phosphatytidylinositol and had a lower content of soluble proteins and less of low molecular antioxidants, such as thiols and ascorbic acid. Composition of total fatty acid in phospholipids fractions showed a significant reduction in the degree of unsaturation of fatty acids. Pollen originating from the polluted area and stored at -30°C showed considerably stronger degradation of cytoplasmic membranes than control.
Źródło:
Acta Societatis Botanicorum Poloniae; 2003, 72, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early evaluation of open pollinated offspring from Polish seedling seed orchards of Pinus sylvestris L.
Autorzy:
Rozkowski, R
Chalupka, W.
Misiorny, A.
Giertych, M.
Powiązania:
https://bibliotekanauki.pl/articles/41741.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Scotch pine
Pinus sylvestris
open-pollinated progeny
quantitative trait
genetic variation
genetic value
seedling
seed orchard
Polska
Opis:
Field trials with open-pollinated progeny of Scots pine were established in 2004 at five climatically different sites of the Polish lowlands. This long-term experiment was aimed to compare the genetic variation and genetic value of the offspring of twenty two seedling seed orchards and two second-generation seed orchard with the offspring of the local so-called economic seed stands, which are the main source of seeds for artificial regeneration of Scots pine in Poland. The early evaluation of quantitative traits of cones, seeds and 1-year-old seedlings attests to remarkable variation between the studied populations. Significant linear correlatios were found between some of the studied traits.
Źródło:
Dendrobiology; 2007, 57; 35-48
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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