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pinus sylvestris/κάλιο
Ο σύνδεσμος αποθηκεύεται στο πρόχειρο
Σελίδα 1 από 20 Αποτελέσματα
Effect of fertilisation on the potassium and radiocaesium distribution in tree stands (Pinus sylvestris L.) and peat on a pine mire.
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This paper compares the effects of single and repeated fertilisation on the contents of potassium, 134Cs and 137Cs in different Scots pine compartments at different levels above ground and in the peat profile 9 years after the Chernobyl disaster. The material was collected from a ditch spacing and
Needle polyamine concentrations and potassium nutrition in Scots pine.
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The response of free polyamines (putrescine, spermidine and spermine) in needles of Scots pine (Pinus sylvestris L.) to varying needle potassium concentrations was investigated in two potassium fertilization experiments on drained peatlands. A significant negative correlation was observed between
Effects of foliar potassium concentration on morphology, ultrastructure and polyamine concentrations of Scots pine needles.
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We examined the effects of three foliar potassium concentrations (high, intermediate and low) on the morphology, ultrastructure and polyamine concentrations of current-year and 1- and 2-year-old needles of 30-year-old Scots pine (Pinus sylvestris L.) trees. Foliar K concentration had only a slight
Free radical generation in Pinus sylvestris and Larix decidua seeds primed with polyethylene glycol or potassium salt solutions.
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Electron paramagnetic resonance (EPR) spectra of Pinus sylvestris and Larix decidua seeds show that priming with PEG+200 mg kg(-1) gibberelic acid (GA(3)) results in appreciably higher free radical contents than in unprimed control samples. Only relatively minor changes in the free radical levels
Organic anion exudation by ectomycorrhizal fungi and Pinus sylvestris in response to nutrient deficiencies.
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Low molecular weight organic anions (LMWOA) can enhance weathering of mineral grains. We tested the hypothesis that ectomycorrhizal (EcM) fungi and tree seedlings increase their exudation of LMWOA when supply of magnesium, potassium and phosphorus is low to enhance the mobilization of Mg, K and P
Urban polluted forest soils induce elevated root peroxidase activity in Scots pine (Pinus sylvestris L.) seedlings.
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Plant biomass. mycorrhizal status and root peroxidase activity were measured in ectomycorrhizal Scots pine (Pinus sylvestris L.) seedlings grown in urban polluted and native, non-polluted forest soils with added ammonium or potassium sulphates simulating N and S deposition of urban areas. Peroxidase
Free amino acids and protein in Scots pine seedlings cultivated at different nutrient availabilities.
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Scots pine (Pinus sylvestris L.) seedlings of a provenance from northern Sweden were cultivated hydroponically for 7 weeks in a climate chamber. The nutrient solution contained either 2.5 (low-N) or 50 (high-N) mg N l(-1) with other essential elements added in a fixed optimal proportion to the
The true distribution and accumulation of radiocaesium in stem of Scots pine (Pinus sylvestris L.).
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The radial and vertical distributions of radiocaesium, potassium and calcium were determined in two Scots pine stands (17 and 58 yr old) similarly affected by the Chernobyl fallout. For both age classes, concentrations are always the lowest in the stemwood, highest in the inner bark and intermediary
Oxalate and ferricrocin exudation by the extramatrical mycelium of an ectomycorrhizal fungus in symbiosis with Pinus sylvestris.
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Accurate estimates of mycelial exudation in time and space are crucial for the assessment of ectomycorrhizal involvement in biogeochemical processes. Knowledge of exudation from mycelia of ectomycorrhizal fungi is still limited, especially for fungi in symbiosis with a host. Pinus sylvestris
Processes, dynamics and modelling of radiocaesium cycling in a chronosequence of Chernobyl-contaminated Scots pine (Pinus sylvestris L.) plantations.
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In a large forested area affected by the Chernobyl radioactive fallout, especially in CIS, the lasting recycling of radiocaesium (137Cs) by the trees is a source of long-term contamination of woody products. The quantitative description of the 137Cs dynamics in contaminated forest is a prerequisite
Seasonal variation of the ¹³⁷Cs level and its relationship with potassium and carbon levels in conifer needles.
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Seasonal variations in foliar ¹³⁷Cs levels were examined in Norway spruce (Picea abies (L.) Karst.), and Scots pine (Pinus sylvestris L.) in western Finland. Our aim was to test the occurrence of seasonal variation in contents and concentrations of ¹³⁷Cs, potassium and carbon in needles. The study
Seasonal changes in amino acids, protein and total nitrogen in needles of fertilized Scots pine trees.
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Seasonal changes in amino acids, protein and total nitrogen in needles of 30-year-old, fertilized Scots pine (Pinus sylvestris L.) trees growing in Northern Sweden were investigated over two years in field experiments. The studied plots had been fertilized annually for 17 years with (i) a high level
The fungal sheath of ectomycorrhizal pine roots: an apoplastic barrier for the entry of calcium, magnesium, and potassium into the root cortex?
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The apoplastic permeability of the fungal sheath of two different ectomycorrhizal associations of Pinus sylvestris L. was analysed by laser microprobe mass analysis (LAMMA) and energy-dispersive X-ray spectroscopy (EDXS) after stable isotope labelling with 25Mg, 41K and 44Ca. Entry of 25Mg and 44Ca
Ectomycorrhizal weathering of the soil minerals muscovite and hornblende.
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Ectomycorrhizal fungi are hypothesized to enhance mineral weathering in forest soils. Several studies have shown an increased uptake of mineral-derived nutrients by trees when in symbiosis with ectomycorrhizal fungi. However, it is difficult to determine from these studies if the improved nutrient
Impact of bonfires on soil properties in an urban park in Vilnius (Lithuania).
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Lighting bonfires in urban parks is a widespread practice. However, few studies have examined their impact on soil properties. The aim of this study was to analyze the impact of bonfires on the soil properties of an urban park in Vilnius, Lithuania. The properties studied were soil water repellency
Η πληρέστερη βάση δεδομένων φαρμακευτικών βοτάνων που υποστηρίζεται από την επιστήμη
- Λειτουργεί σε 55 γλώσσες
- Βοτανικές θεραπείες που υποστηρίζονται από την επιστήμη
- Αναγνώριση βοτάνων με εικόνα
- Διαδραστικός χάρτης GPS - ετικέτα βότανα στην τοποθεσία (σύντομα)
- Διαβάστε επιστημονικές δημοσιεύσεις που σχετίζονται με την αναζήτησή σας
- Αναζήτηση φαρμακευτικών βοτάνων με τα αποτελέσματά τους
- Οργανώστε τα ενδιαφέροντά σας και μείνετε ενημερωμένοι με την έρευνα ειδήσεων, τις κλινικές δοκιμές και τα διπλώματα ευρεσιτεχνίας
Πληκτρολογήστε ένα σύμπτωμα ή μια ασθένεια και διαβάστε για βότανα που μπορεί να βοηθήσουν, πληκτρολογήστε ένα βότανο και δείτε ασθένειες και συμπτώματα κατά των οποίων χρησιμοποιείται.
* Όλες οι πληροφορίες βασίζονται σε δημοσιευμένη επιστημονική έρευνα
