Biochar ameliorates crop productivity, soil fertility, essential oil yield and aroma profiling in basil (Ocimum basilicum L.)

Pandey, Vineeta; Patel, Anju; Patra, D. D.

doi:10.1016/j.ecoleng.2016.01.020

Cited by 74 publications

(27 citation statements)

References 36 publications

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“…Biochar as a soil amendment is used to improve soil quality over both the long and short term (Khaledian et al, 2013;Krause et al, 2016). Its reported benefits have included mitigation of nitrous oxide (N 2 O) emissions (Hüppi et al, 2015;Harter et al, 2016), improved nutrient availability (Drake et al, 2016;Olmo et al, 2016;Pandey et al, 2016), prevention of heavy metal pollution (Bian et al, 2013;Mohamed et al, 2015), general control of environmental pollution (Fernández-Calviño et al, 2016), and storage of organic carbon. Interest in biochar and its potential environmental applications, including heavy metal remediation, has increased interest in investigating the relationships between soil organic carbon and metal content.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Organic Carbon and pH on Heavy Metals, Potassium, and Magnesium Levels in Lithuanian Podzols

et al. 2016

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Industrial activities can contribute to the accumulation of heavy metals in soils, which could potentially threaten public health and the environment. This research was conducted to investigate the relationships between pH and total organic carbon (TOC) with soil chemical parameters, including exchangeable and total Cu, Zn, Cd, Pb, K, and Mg concentrations in soils near Panevėžys and Kaunas, Lithuania. Principal component regression (PCR) and non‐linear regression were used to find statistical relationships between pH, TOC, and the other soil properties studied. The results of correlation tests indicated that pH and TOC had strong relationships with most of the soil properties. The results of PCR [R2 = 0·87, RMSE = 0·046] and non‐linear regression [R2 = 0·91, RMSE = 0·041] (pH and the entire parameters), PCR [R2 = 0·777, RMSE = 0·058] and non‐linear regression [R2 = 0·871, RMSE = 0·046] (pH and the exchangeable parameters) to model the relationships between pH and soil chemical properties were promising and significant. Exchangeable heavy metal concentrations increased for pH > 5. Even though the relationships between TOC and heavy metals were significant, they were not as powerful as the relationships between pH and these metals. It was concluded that total metal concentrations in the study soils can be predicted by either pH or TOC. Metal mobility could most likely be controlled at the study site by manipulating soil pH and/or TOC. Finally, it is suggested that when there are financial and time limitations, assessment of total exchangeable metal concentrations using soil pH and/or TOC could be productive. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

The Influence of Organic Carbon and pH on Heavy Metals, Potassium, and Magnesium Levels in Lithuanian Podzols

et al. 2016

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“…According to the authors, these compounds are responsible for the peculiar aroma of basil and have antioxidant and antimicrobial activities. Linalool and estragole were also the major compounds of the basil EO in studies carried out in India (Elansary et al, 2016;Pandey et al, 2016;Padalia et al, 2017;Tiwari et al, 2017) and Canada (Elansary et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

“…However, studies have demonstrated a typical auxin effect from stimulation of the activity and promotion of the synthesis of H + -ATPases in cellular plasma membranes (Canellas et al, 2002). Humic substances, in the form of vermicomposting, have increased growth and production of basil's EO (Pandey et al, 2016;Verma et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

“…HS are caused by biological degradation of animal and plant residues and activity of soil microorganisms may affect chemical, physical, and biological properties of soils, increasing plant development, root growth, and total biomass (Befrozfar et al, 2013;Verma et al, 2016;Pandey et al, 2016;Lermen et al, 2017). HS also alter the soil color and improve soil structure, water retention capacity, ion exchange, and buffering power.…”

Section: Introductionmentioning

confidence: 99%

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Antimicrobial activity of essential oil and growth of Ocimum basilicum (L.) inoculated with mycorrhiza and humic substances applied to soil

Morelli¹,

Ferarrese²,

Munhoz³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. Mycorrhizal association increases the absorption of water and nutrients by plants, and thus, affects their metabolism. This study aimed at assessing the single and conjoint effects of the arbuscular mycorrhizal fungus (AMF) Claroideoglomus etunicatum and soil's humic substances (HS) on the composition of essential oil (EO), its antimicrobial activity, and development of basil (Ocimum basilicum L.). The experimental design was completely randomized in a 2 x 2-factorial design (with and without AMF and HS) with 10 replications as follows: T1 -without AMF inoculation and without HS addition; T2 -with AMF inoculation and with HS (2 L/ha); T3 -without AMF inoculation and with HS; T4 -with AMF inoculation and with HS. Plants were grown in pots with 5 kg sterile soil in a greenhouse for 6 months. Then, they were harvested and evaluated for spore density, AMF root colonization, shoot dry matter (SDM), yield and chemical composition of EO as well as minimum inhibitory concentration, used to compare the antimicrobial effect of EO in nine bacteria. The addition of HS to the soil increased the spore density of AMF and SDM (P < 0.001). The AMF inoculation with and without HS increased the EO yield of basil (P < 0.001). The treatments altered the composition of the basil EO, in which a total of fourteen compounds were detected. In treatments with AMF and/or HS, linalool (28.64 to 42.94%) and estragole (27.53 to 47.17%) were the major compounds. However, in the control (without AMF and HS), eugenol (33.90%) was the major compound. The EO showed low microbial activity against bacteria Bacillus cereus, Salmonella enterica serovar typhi, Shigella flexneri, Klebsiella pneumoniae, and Xanthomonas axonopodis pathovar begoniae. AMF inoculation and HS addition could improve the development of basil, increase EO yield, alter the EO chemical composition and its major compounds, but presented low or none microbial activity against most of the bacteria tested in this study.

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“…This is an indication that in parallel with the decrease in lemon balm's surface area, the amount of digiform, peltate and capitate glandular trichomes that secrete EO will also decrease under Cd stress (Chwil et al, 2016). Furthermore, it was reported that leaf surface area is also significantly correlated to yield of the plant (Pandey et al, 2016;Patel and Patra, 2015). Photosynthetic apparatus are a very sensitive parameters to heavy metal stress (Hayat et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Effects of cadmium-induced stress on essential oil production, morphology and physiology of lemon balm (Melissa officinalis L., Lamiaceae)

Kılıç¹

2017

Appl Ecol Env Res

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Abstract. Secondary metabolites, which have an important role in regulating plants' relationship with the environment, are affected by soil pollution. Thus, it is important to describe the mechanism in which lemon balm's (Melissa officinalis L. subsp. officinalis) secondary metabolite accumulation is affected by Cadmium (Cd) stress. For this purpose, lemon balms seedlings that were grown in a controlled environment were exposed to increasing Cd stress and the relationship of lemon balm's growth and development with EO (essential oil) accumulation were investigated. Morphological, anatomical and physiological parameters of plants' that were exposed to Cd significantly decreased in parallel with increasing Cd concentration. Impairments in growth and development of lemon balm due to increasing Cd concentrations also affected EO accumulation. However, this destructive effect was most evident on EO accumulation amongst all investigated parameters. Furthermore, amount of EO decreased by 97%, at the highest concentration. In conclusion, Cd might have damaged both the EO producing mechanism and the structures that produce EO by inhibiting plant growth. Therefore it is important to reveal the responses of all parameters which affect EO production of medicinal plants under various stress conditions.

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Biochar ameliorates crop productivity, soil fertility, essential oil yield and aroma profiling in basil (Ocimum basilicum L.)

Cited by 74 publications

References 36 publications

The Influence of Organic Carbon and pH on Heavy Metals, Potassium, and Magnesium Levels in Lithuanian Podzols

The Influence of Organic Carbon and pH on Heavy Metals, Potassium, and Magnesium Levels in Lithuanian Podzols

Antimicrobial activity of essential oil and growth of Ocimum basilicum (L.) inoculated with mycorrhiza and humic substances applied to soil

Effects of cadmium-induced stress on essential oil production, morphology and physiology of lemon balm (Melissa officinalis L., Lamiaceae)

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