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Wyszukujesz frazę "wild species" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Propagation of Flacourtia jangomas: an approach towards the domestication of wild fruit species in Bangladesh
Autorzy:
Hossain, M.A.
Sen, M.
Jewell, M.I.U.
Kabir, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/40995.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
propagation
Flacourtia jangomas
domestication
wild species
fruit species
germination
rooting ability
seedling
stem cutting
wild fruit
Bangladesh
Opis:
The study was carried out to investigate the domestication potential of Flacourtia jangomas (Lour.) Raeusch, a wild fruit species in Bangladesh, through nursery raising from seeds and clonal propagation by stem cutting. Air dried seeds were treated with four different pre-sowing treatments i.e., control (T0), seeds soakedin coldwater for 24 h (T1), 48 h (T2), or 72 h (T3) to explore the seedgermination ability of the species. Pre-sowing treatments significantly enhancedthe germination period, germination percentage andbiomass production of seedlings. The early germination (least imbibition period), highest germination percentage (81.3) and total dry biomass (0.52 g) was observed in T2 (seeds soaked in cold water for 48 h) while the lowest germination percentage (53.7) andtotal dry biomass (0.23 g) was observedin T3 andT0 respectively. The plant species was highly amenable for rooting for clonal propagation. However, the rooting ability of cuttings was significantly affectedby the application of IBA. The highest rooting percentage (100), maximum root number (5.63), the longest root length (3.28 cm) andbest survival (85.0%) were obtainedfrom the cuttings treatedwith 0.4% IBA solution followed by 0.2% IBA andthe lowest was in cuttings without treatment. Therefore, pre-sowing treatment ‘soaking of seeds in cold water for 48 h for nursery raising and ‘0.4% IBA treatment’ of stem cuttings for clonal propagation may be recommended for mass production of quality planting stocks for the domestication of the species through homestead agroforestry or in fruit orchards.
Źródło:
Dendrobiology; 2011, 65
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The population structure and regeneration of Sorbus torminalis in Hadecka planinka National Nature Reserve (Czech Republic)
Autorzy:
Madera, P.
Kohoutek, M.
Senfeldr, M.
Repka, R.
Powiązania:
https://bibliotekanauki.pl/articles/41463.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
population structure
regeneration
Sorbus torminalis
wild service tree
age structure
forest system
species protection
chequer tree zob.wild service tree
checker tree zob.wild service tree
Hadecka Planinka National Nature Reserve
Czech Republic
Opis:
We performed a detailed overall field survey of all specimens of the wild service tree Sorbus torminalis (L.) Crantz in the research area in the Hádecká planinka National Nature Reserve. This research area, with an area of 80 ha, contains one of the largest populations of the tree in Europe. In all, 1713 specimens were found. This study provides a detailed description of the wild service tree population in the area. The basic biometric parameters (height, GBH, social position, fertility) of thepopulation were assessed. The main emphasis of our analysis was to evaluate the population's age structure. We used estimates of age structure based on the Chapman-Richards growth function to perform this evaluation. During the past twenty years, the natural regeneration of the wild service tree in the nature reserve has decreased considerably. At an experimental plot where a high forest was converted to a coppice with standards, regeneration occurred over 75% of the area. Root suckers were found at the beginning of the observation period. After 2–3 years, generative regeneration occurred.
Źródło:
Dendrobiology; 2012, 68
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
    Wyświetlanie 1-3 z 3

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