Development and Physiological Performance of Hydroponically-Grown Ornamental Indoor Plants in Relation to their Potential Use in Botanical Biofilters: Effect of Mineral Nutrient Availability

Ievinsh, Gederts; Andersone-Ozola, Una; Sieriņa, Alise

doi:10.2478/prolas-2022-0041

Cited by 3 publications

(3 citation statements)

References 51 publications

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“…This finding somehow contradicts the widespread opinion that a Na + dilution mechanism is a characteristic response of salt-adapted accumulating species to increasing salinity [ 41 , 42 ]. Rather, at least in the particular case, this points to a positive relationship between tissue water content and plant nitrogen nutrition status, as shown for other experimental systems [ 43 , 44 ].…”

Section: Discussionmentioning

confidence: 59%

Type of Anion Largely Determines Salinity Tolerance in Four Rumex Species

Landorfa-Svalbe

Andersone-Ozola

Ievinsh

2022

Plants

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The aim of the present study was to compare the effect of various salts composed of different cations (Na+, K+) and anions (chloride, nitrate, nitrite) on growth, development and ion accumulation in three Rumex species with accessions from sea coast habitats (Rumex hydrolapathum, Rumex longifolius and Rumex maritimus) and Rumex confertus from an inland habitat. Plants were cultivated in soil in an experimental automated greenhouse during the autumn–winter season. Nitrite salts strongly inhibited growth of all Rumex species, but R. maritimus was the least sensitive. Negative effects of chloride salts were rather little-pronounced, but nitrates resulted in significant growth stimulation, plant growth and development. Effects of Na+ and K+ at the morphological level were relatively similar, but treatment with K+ salts resulted in both higher tissue electrolyte levels and proportion of senescent leaves, especially for chloride salts. Increases in tissue water content in leaves were associated with anion type, and were most pronounced in nitrate-treated plants, resulting in dilution of electrolyte concentration. At the morphological level, salinity responses of R. confertus and R. hydrolapathum were similar, but at the developmental and physiological level, R. hydrolapathum and R. maritimus showed more similar salinity effects. In conclusion, the salinity tolerance of all coastal Rumex species was high, but the inland species R. confertus was the least tolerant to salinity. Similarity in effects between Na+ and K+ could be related to the fact that surplus Na+ and K+ has similar fate (including mechanisms of uptake, translocation and compartmentation) in relatively salt-tolerant species. However, differences between various anions are most likely related to differences in physiological functions and metabolic fate of particular ions.

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Section: Discussionmentioning

confidence: 59%

Type of Anion Largely Determines Salinity Tolerance in Four Rumex Species

Landorfa-Svalbe

Andersone-Ozola

Ievinsh

2022

Plants

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“…An increase in mineral nutrient availability in several species of hydroponically cultivated ornamental indoor plants ( Chlorophytum comosum, Epipremnum aureum, Plectranthus fruticosus, Tradescantia pallida ) resulted in increased water content of tissues ( Figure 1 ) [ 43 ]. However, this effect was not evident for extremely slow-growing Anthurium spp.…”

Section: Effect Of Environmental Factors On Water Contentmentioning

confidence: 99%

“…Different letters indicate statistically significant differences for a particular plant part ( p < 0.05). Modified from Ievinsh et al, 2021 [ 43 ].…”

Section: Figurementioning

confidence: 99%

Water Content of Plant Tissues: So Simple That Almost Forgotten?

Ievinsh

2023

Plants

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The aim of the present review was to reconsider basic information about various functional aspects related to plant water content and provide evidence that the usefulness of measuring absolute water content in plant sciences is undervalued. First, general questions about water status in plants as well as methods for determining water content and their associated problems were discussed. After a brief overview of the structural organization of water in plant tissues, attention was paid to the water content of different parts of plants. Looking at the influence of environmental factors on plant water status, the differences caused by air humidity, mineral supply, biotic effects, salinity, and specific life forms (clonal and succulent plants) were analyzed. Finally, it was concluded that the expression of absolute water content on a dry biomass basis makes easily noticeable functional sense, but the physiological meaning and ecological significance of the drastic differences in plant water content need to be further elucidated.

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Substrate-Dependent Effect of Vermicompost on Yield and Physiological Indices of Container-Grown Dracocephalum moldavica Plants

2021

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The development of sustainable plant production systems involves a search for different alternatives to chemical fertilizers. The aim of the present study is to compare growth and physiological effects of vermicompost on Dracocephalum moldavica plants in controlled conditions, using two types of commercially available substrates. The intention is to determine whether nondestructively measured photosynthesis-related parameters are useful for monitoring the physiological status of plants. The plants were cultivated in two base substrates without or with the addition of mineral fertilizer, as well as an amendment with vermicompost at a 20% or 30% rate in the conditions of an automated greenhouse. The biomass accumulation for control plants of D. moldavica was identical in peat substrate and commercial garden soil. The average growth increase by mineral fertilizer was 25% for D. moldavica plants grown in peat and 15% for plants grown in soil. Substrate amendment with 20% vermicompost resulted in an 114% average increase in biomass for plants grown in peat and a 98% average increase for plants grown in soil, but for plants at 30% the amendment rate increase was 148% and 68%, for peat and soil, respectively. Consequently, the addition of an identical amount of vermicompost resulted in a poorer growth response of plants in commercial garden soil as a substrate in comparison to peat, but an increase in the amendment rate from 20% to 30% resulted in some growth inhibition for these plants. Chlorophyll concentration was positively affected by the vermicompost amendment in a concentration-dependent manner, but this effect during a cultivation period appeared relatively late. Large differences were found between the three groups of fluorescence-derived parameters, with variable levels of predictability with respect to the differences in plant yield due to the pronounced variation in correlation through time. It is concluded that the incorporation of vermicompost for the cultivation of D. moldavica, even in substrate mixes with relatively high and balanced composition of plant-available nutrients, benefits plant growth, physiological status and biomass yield, but it is necessary to explore interactions between vermicompost and other substrates leading to possible changes in quality-related characteristics of vermicompost in substrate mixes.

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Development and Physiological Performance of Hydroponically-Grown Ornamental Indoor Plants in Relation to their Potential Use in Botanical Biofilters: Effect of Mineral Nutrient Availability

Cited by 3 publications

References 51 publications

Type of Anion Largely Determines Salinity Tolerance in Four Rumex Species

Type of Anion Largely Determines Salinity Tolerance in Four Rumex Species

Water Content of Plant Tissues: So Simple That Almost Forgotten?

Substrate-Dependent Effect of Vermicompost on Yield and Physiological Indices of Container-Grown Dracocephalum moldavica Plants

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