Soils classified in the Arboretum Mlyňany, Slovakia

Urban greenery is often affected by adverse environment (including inadequate water availabil-ity) of human agglomerations. Besides high aesthetic value, maples (Acer sp.) with elevated resistance to air/soil pollution, have become common components of ornamental plantations in Europe. Because of high theoretical (representativeness for species evaluation) and practical (planting age) relevancy, morphological and metabolic reactions of juvenile plants of eight maple species to one month long summer drought were studied in the experimental field to estimate the species drought resistance. In spite of marked growth differences, none from tested species showed a significant decrease in leaf relative water content indicating stress. However, in some of them activation of protective mechanisms was observed, what points to the past stress sensing. A. negundo with A. tataricum bet on transpiration area reduction (leaf shedding) and A. buergerianum, A. palmatum and A. saccharinum on osmotic adjustment (increased free proline concentration). Increase in stomatal index and/or reduction in specific leaf area, observed almost exclusively in species with continuous growth, had limited effect on the plant hydration status. Relative trunk growth was par-ticularly affected in the fast growing species. Taking into account the decisive protective mechanisms onset and trunk growth stability, species can be ordered in respect of drought resistance as follows: A. campestre, A. monspessulanum, A. platanoides, A. tataricum, A. negundo, A. saccharinum, A. palmatum and A. buergerianum.

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“…1. According to the work of Polláková (2018), in the area of the experimental field, luvic chernozem is indicated.…”

Section: Study Site and Biological Materialsmentioning

confidence: 99%

Screening for drought resistance among ornamental maples (Acer sp.). A field experiment in juvenile plants

Oravec¹,

Ferus²,

Košútová³

et al. 2023

Dendrobiology

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“…For this experiment, seven sampling sites were chosen with the intention to include all soils classified at area of Arboretum [Polláková 2018 Undisturbed soil samples (100 cm 3 ) were collected in three repetitions using steel cylinders per each of 0.1 m layer to the depth of 0.8 or 0.9 m. In laboratory, the physical properties were determined using standard analytical methods [Kobza et al 2011]. The results of physical data are detailed in Polláková et al [2017].…”

Section: Soil Sampling and Analysesmentioning

confidence: 99%

The Relationships of Texture and Hydrophysical Properties in Soil Profiles Under Selected Exotic Trees in the Context of Climate Change in Central Europe

Polláková¹,

Šimanský²,

Jończak³

2021

J. Ecol. Eng.

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Suitable soil and environmental conditions are the main prerequisites for successful growth of plants. Generally, all soil properties are substantially affected by textural composition. Therefore, the objective of the study was to test the interrelationships between particle size distribution and such physical soil properties, which usually predetermine the survival/death of plants, since they significantly affect the content and availability of water and air. Textural composition and physical soil properties were studied in profiles under monocultures of selected exotic trees in Arboretum Mlyňany, Slovakia. The results showed that medium-textured dominated in topsoils, whereas heavy-textured classes were dominant in luvic and stagnic horizons. Evaluation of entire profiles had confirmed standard, expected relationships between the individual grain fractions and soil physical properties. However, differences have occurred when the correlations between texture and physical properties in individual horizons were evaluated. Considering entire soil profiles, increased sand content significantly supported drainage of rainwater and soil aeration; silt contributed to increase the total porosity and aeration as well as available water capacity; clay contributed to the decrease in the available water capacity, total, and particularly coarse porosity and aeration, and to rise water retention, as well as the values of the wilting point. The results showed silt as key fraction providing suitable hydrophysical properties for the survival and growth of trees introduced in Arboretum. In compacted luvic and stagnic horizons, silt was significantly involved in the formation of total, and particularly coarse porosity and thereby increase soil aeration, while conversely, in loose topsoils just silt fraction significantly contributed to the reduction of coarse pores and increase of fine capillary pores and therefore water retention. In loose eluvial horizons, the silt contributed to significant increases in capillary porosity and water availability, which is essential in terms of meeting the plant needs.

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“…In some parts of the arboretum, there are also podzolic soils (Tábor and Pavlačka, 1992). In a recent study, Polláková (2018) identified three reference soil groups (RSG) in the Mlyňany Arboretum, namely luvisols, retisols and chernozems.…”

Section: Mlyňany Arboretum Ife Sasmentioning

confidence: 99%

Genotype-specific requirements for in vitro culture initiation and multiplication of Magnolia taxa

2020

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The influence of basal media composition, concentration of plant growth regulators (PGRs), and the developmental stage of primary explants (dormancy, stage of bud opening and fruit ripening) on the initiation phase of nine Magnolia genotypes, including M. stellata /Sieb. & Zucc./Maxim., M. × soulangeana ‘Rustica Rubra’, M. denudata Desr., M. × soulangeana ‘Alexandrina’, M. liliiflora Desr., M. officinalis var. biloba Rehd. & Wils., M. salicifolia Maxim., M. × soulangeana ‘Lennei’, and M. kobus DC, was evaluated. The highest efficiency of primary culture initiation of seven Magnolia genotypes (except for M. liliiflora and M. salicifolia) was achieved from primary explants collected in the bud opening stage. A high positive correlation was found between total tannins and efficiency of the primary culture initiation at the fruit ripening stage (r = 0.833). Standardi and Catalano medium (S2) with 0.5 mg l−1 of 6-benzylaminopurine (BAP) was the most appropriate for multiplication of M. × soulangeana ‘Alexandrina’, whereas tissue cultures of M. × soulangeana ‘Lennei’ proliferated and grew better on S2 medium with 1.0 mg l−1 of BAP and 1.0 g l−1 of polyvinylpyrrolidone. The requirements for the composition of basal media and concentration of PGRs in the initiation and multiplication stages of micropropagation of various Magnolia species and cultivars are genotype-specific.

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Soils classified in the Arboretum Mlyňany, Slovakia

Cited by 4 publications

References 17 publications

Screening for drought resistance among ornamental maples (Acer sp.). A field experiment in juvenile plants

Screening for drought resistance among ornamental maples (Acer sp.). A field experiment in juvenile plants

The Relationships of Texture and Hydrophysical Properties in Soil Profiles Under Selected Exotic Trees in the Context of Climate Change in Central Europe

Genotype-specific requirements for in vitro culture initiation and multiplication of Magnolia taxa

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