Changes in the chemical composition of the rhizosphere of tomato grown on inert substrates in a prolonged cycle

Jarosz, Zbigniew; Michałojć, Zenia; Dzida, Katarzyna

doi:10.5601/jelem.2011.16.3.04

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…Joner et al (2000) indicated that the surface area of AMF serves as adsorptive sites for heavy metal cations and this process prevents entry of toxic metals into the host plants. In hydroponic cultures, despite supplying plants with a standard nutrient solution, an increase in the concentrations of minerals in the root zone of plants has been frequently observed as an effect of accumulation (JArosz et al 2011, kleiBer 2012. It can be assumed that the limiting effect of AMF on the uptake of Zn and Cu by mycorrhized plants was the result of elevated concentrations of these components in the root zone.…”

Section: Mineral Status Of Plantsmentioning

confidence: 99%

Effect of mycorrhiza and the phosphorus content in a nutrient solution on the yield and nutritional status of lettuce grown on various substrates

Kowalska¹,

Konieczny²,

Gąstoł³

2015

J. Elem.

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Kowalska I., Konieczny A., Gąstoł M. 2015. Effect of mycorrhiza and the phosphorus content in a nutrient solution on the yield and nutritional status of lettuce grown on various substrates. J. Elem., 20(3): 631-642. AbstractThe potential of mycorrhization of lettuce in hydroponic conditions was tested in a two-year experiment carried out in the autumn of 2011 and 2012 in an unheated foil tunnel. The experimental factors were as follows: inoculation of plants with arbuscular mycorrhizal fungi (AMF+ or AMF-), concentration of phosphorus in a nutrient solution (10 or 40 mg dm -3 ) and the type of substrate (rockwool or coconut coir). The inoculation of plants with arbuscular mycorrhizal fungi of the genus Glomus was performed twice, i.e. while sowing seeds and when planting lettuce plants into mats. The impact of the experimental factors on the degree of colonization of lettuce roots by AMF as well as the yield and nutritional status of plants, expressed as the content of macro-and micronutrients, was studied. The mycorrhizal frequency in roots inoculated with AMF reached 51.36%. The nutrient solution concentration of phosphorus and the type of substrate did not have any significant effect on the mycorrhizal frequency. There were no differences in the yield and content of macronutrients in lettuce leaves between plants inoculated and not inoculated with AMF (AMF+, AMF-). Likewise, there were no differences in the yield caused by different phosphorus levels in the nutrient solution or the types of substrate. Plants growing on rockwool accumulated significantly less P, Ca and Mg in comparison to plants growing on coconut coir. Regarding Ca, this effect was especially pronounced in plants receiving the nutrient solution with a higher concentration of P, i.e. 40 mg dm -3 . Mycorrhiza had a significant effect on the content of Cu, Mn and Zn in lettuce leaves. Inoculated plants were characterized by a lower content of these micronutries compared to plants grown without AMF. With respect to Mn, this effect was particularly evident in plants grown on rockwool.

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Section: Mineral Status Of Plantsmentioning

confidence: 99%

Effect of mycorrhiza and the phosphorus content in a nutrient solution on the yield and nutritional status of lettuce grown on various substrates

Kowalska¹,

Konieczny²,

Gąstoł³

2015

J. Elem.

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“…While growing anthurium in expanded clay pellets, a 9.5% decrease of EC was found (KLEIBER, KOMOSA 2006). On the another hand, in an experiment with tomato grown in perlite or expanded clay pellets, the concentration of drainage waters leaking from medium was higher than in solutions applied to the plants (JAROSZ et al 2011). It seems that modifications in the composition of the rhizosphere and drainage water depend not only on the medium, but also on crop species and even on a cultivation system (DYOEKO, KOWALCZYK 2005).…”

Section: Resultsmentioning

confidence: 99%

Effect of nutrient solution concentration on yield and quality of gerbera grown in perlite

2014

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The aim of the experiments was to achieve a reduction in the concentration of a nutrient solution used for fertigation of miniature gerbera grown in perlite. During the first 4 weeks after the planting of gerberas, the nutrient solution used for fertigation had a concentration of 1.4 mS cm-1. Next, half of the plants were nourished with the standard nutrient (EC 2.0 ± 10% mS cm-1) while the other half received a more dissolved solution (EC 1.6 ± 10% mS cm-1). The overflow was set at 25% of the daily applied nutrient solution. The number of flowers, the diameter of flower heads and the length of peduncle were not affected by a 20% decrease in the concentration of nutrient solution. The nutritional status of gerbera was also satisfactory. The concentrations of most ions in the leakage were slightly higher than in the nutrient solutions applied for fertigation. The results indicate that the application of solutions with a lower EC did not cause any drastic changes in the plant root environment. The study showed that it is possible to use about 20% less of fertilizers without any negative effects on the number and quality of gerbera flowers grown in perlite. Similar studies should be performed to analyze potential savings of fertilizer in the cultivation of other plant species. The results could contribute to lesser environmental pollution.

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“…It is even recommended to use chloride-free and low-sodium fertilizers in protected cultures. In this type of crop production, medium salinity is most commonly caused by excessive concentration of K + , NH 4 + , Na + , NO 3 -, SO 4 2and BO 3 3as well as Na + and Cl -, with the latter two being ballast elements in applied fertilizers (AUERSWALD et al 1999, JAROSZ et al 2011. Currently, soilless or hydroponic culture, a specific method of crop production, predominates in greenhouses and foil tunnels (GAJC-WOLSKA et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Effect of foliar application of salicylic acid on the response of tomato plants to oxidative stress and salinity

Kowalska

Smoleń

2012

J. Elem.

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The aim of the study has been to evaluate the effect of an increased salt concentration in a nutrient solution and foliar application of salicylic acid and KMnO 4 (the latter causing oxidative stress) on the yield, fruit quality and nutritional status of tomato plants. Salinity stress was stimulated by elevating the electrical conductivity (EC) of a nutrient solution by a proportional increase in the content of all macro-and micronutrients. In 2009-2010, tomato plants were grown on rockwool, in a heated foil tunnel. The experiment included two sub-blocks with two EC levels (2.5 and 4.5 mS cm-1). Within each sub-block, the following foliar application variants were distinguished: 1. control, without foliar application; 2. salicylic acid (SA); 3. SA/KMnO 4. In the SA/KMnO 4 combination, solutions of these compounds were applied alternately every 7 days. SA was applied in the concentration of 0.01%, while the concentration of KMnO 4 was 0.1%. Foliar treatments were conducted at 7-day intervals from the 3 rd cluster flowering stage until ten days before the first harvesting of fruits. Irrespective of the EC of the nutrient solution, foliar application of SA as well as SA/KMnO 4 had no significant effect on the tomato yield, total acidity and dry matter or soluble sugar content in fruits. Neither did it affect significantly the mineral status of plants except for an increase in the Mn level induced by SA/KMnO 4. A significantly higher content of ascorbic acid together with a decreased content of phenolic compounds and free amino acids resulted from the foliar application of SA and SA/KMnO 4. Salicylic acid counteracted the oxidative stress caused by KMnO 4 .

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Changes in the chemical composition of the rhizosphere of tomato grown on inert substrates in a prolonged cycle

Cited by 6 publications

References 5 publications

Effect of mycorrhiza and the phosphorus content in a nutrient solution on the yield and nutritional status of lettuce grown on various substrates

Effect of mycorrhiza and the phosphorus content in a nutrient solution on the yield and nutritional status of lettuce grown on various substrates

Effect of nutrient solution concentration on yield and quality of gerbera grown in perlite

Effect of foliar application of salicylic acid on the response of tomato plants to oxidative stress and salinity

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