Microbial Inoculants Assisted Growth of Chrysopogon zizanioides Promotes Phytoremediation of Salt Affected Soil

Pankaj, Umesh; Singh, D; Singh, Gurmeet; Verma, Rajesh

doi:10.1007/s12088-018-00776-9

Cited by 8 publications

(3 citation statements)

References 39 publications

(60 reference statements)

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“…From Figure 2, all the MC concentrations were found to be more e ective than the control in both SB and BB at initial to nal days (0-d to 15-d) for plant height of okra. is result suggested that MC e ectively metabolized the soil nutrients, thereby mobilizing the nutrients to water-soluble forms that help to stimulate the crop height [36,40], but in the case of control, the lower amount of plant accessible due to lack of microbial inoculants. In the comparison between SB and BS base, the PH (as a case study) was considered as a growth parameter with okra and tomato crops (Figures 2 and 3).…”

Section: Discussionmentioning

confidence: 99%

Positive effects of a formulated microbial consortium on the growth and well-being of okra and tomato crops

2023

JPRI

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The impact of microbial consortium (MC) comprising plant development-promoting organisms (PGPMs), for example, Bacillus sp., Enterobacter sp. (bacteria), Aspergillus sp., Penicillium sp. (fungus), and streptomycin sp. (actinomycetes) which are effective on two vegetable crops (okra and tomato). These strains were collected from five geologically isolated soil samples of agricultural fields around Bhubaneswar, Khurda, India (20.65946°N, 86.75409°E) and were biochemically characterized. The promising isolates were confirmed by 16s rRNA sequence. The MC was applied at five different concentrations, viz., 0.2%, 0.5%, 1.0%, 1.5%, and 2.0% (v/v using MS medium) along with a control were included. The combinations of above mentioned PGPMs strains significantly increased shoot height, plant height, leaf length, and leaf width at three-day intervals, and fresh weight, dry weight, and root length at the end of the study period. The results revealed that the protective effect of MC significantly increased all the parameters. The crop growth parameters were confirmed MC was effective when tested against control crops. The MC was more effective with the soil base than without a soil base. Among different concentrations of MC, 0.5% of MC was more effective for all the test crops as compared to other concentrations. So, 0.5% was optimal for microbial colonization to ensure the provision of soil nutrients, as no discernible change in growth parameters was observed to further increase in concentration. Also, a study on microbial and physicochemical parameters of all the treatments of all the crops was recorded. The lab study is a small-scale investigation to confirm the efficacy and the sustainability of MC in with soil and without soil of Odisha. Overall, the study illustrated a healthy biotic (consortium microbes and natural soil microbes) and abiotic (MS medium and soil supplement) interaction is advantageous for crop development and advancement.

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Section: Discussionmentioning

confidence: 99%

Positive effects of a formulated microbial consortium on the growth and well-being of okra and tomato crops

2023

JPRI

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“…In addition to having EC values of less than 4 dSm −1 , sodic soils are found to have high pH values (>8.5) and ESP values (>15), which are effects of low exchangeable sodium in the soil, causing soil dispersion, reduced porosity, and poor water infiltration, resulting in low crop growth and yields. In salt‐affected soils, ESP and sodium adsorption ratio (SAR) indicators show that there is a high concentration of salts, a high electrical conductivity (EC), and a high pH value (Pankaj et al, 2019). Salinity occurs when the concentration of soluble salts in the soil increases, which in turn causes plants to succumb to water deficiency, eventually leading to the death of plants.…”

Section: Introductionmentioning

confidence: 99%

Assessment of salt‐affected soil in Indo‐Gangetic Plain of Uttar Pradesh and prediction using regression model

Hiranmai,

Neeraj

2023

Land Degrad Dev

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In the present study, multiple sites in the Indo‐Gangetic Plain (IGP) were examined, and most of the sites were found to be non‐saline, with electrical conductivity (EC) values below 4.0 dSm−1. The highest value of EC 8.5 dSm−1 was reported for samples collected from JAN‐2, which, followed by site RBL‐3, also shows a high value of EC 6.5 dSm−1. The highest CEC (cmolkg−1) was reported in samples collected from site JAN‐1 (8.4), JAN‐2 (8.2), and JAN‐3 (8.21), and the lowest at RBL‐2 (3.99). The highest exchangeable sodium percentage (ESP) value of 34.07% was observed at RBL‐3, indicating a potential salinity risk associated with elevated sodium contents. The analysis showed that salt was present at all study sites, and there were strong correlations between the variables examined. The relationship between measured ESP and predicted ESP shows a strong correlation with an r2 value of 0.91, indicating the applicability of ESP–sodium adsorption ratio (SAR). Paired samples t‐test results p‐value = 0.27 indicated no significant difference (p > 0.05) between the soil ESP values predicted by the soil ESP–SAR model and those obtained through laboratory testing. The statistical results of the study suggested that the soil ESP–SAR model was reliable for predicting ESP values. The soil ESP differences between the two methods were normally distributed, and the 95% limits of agreement were calculated as −7.79 and 5.55. The mean difference between the ESP–SAR model and the “Measured” method was calculated as 2.24, representing the average deviation between the two. The study presents the ESP–SAR model as a cost‐effective and efficient method for estimating soil ESP and assessing soil salinity. By analyzing soil properties and validating the model, it provides valuable insights for policymakers and stakeholders in combating agricultural land degradation in the IGP. The novelty lies in its comprehensive evaluation of soil salinity indices, reinforcing the applicability of the ESP–SAR model for future research and agricultural management.

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“…Perennial aromatic grasses can thrive in different types of degraded soils (Gupta et al, 2021; Pandey et al, 2015). PGPR and arbuscular mycorrhizal fungi (AMF) were used as bio‐inoculants for the cultivation of perennial aromatic grasses such as V. zizanioides in salt‐affected soil (Pankaj, Singh, et al, 2019). In addition to decrease in soil salinity, authors reported a significant increase in growth and productivity of V. zizanioides with effect of PGPR and AMF.…”

Section: Introductionmentioning

confidence: 99%

Enhancing productivity of perennial aromatic grasses on marginal lands through plant growth promoting rhizobacteria

et al. 2022

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The cultivation of perennial aromatic grasses on marginal lands is a socioeconomically and ecologically sustainable approach. However, the studies on assessment of the potential efficacies of consortium of plant growth promoting rhizobacteria (PGPR) in enhancing the productivity of perennial aromatic grasses on marginal lands are rare. In this study, therefore, we studied the effect of PGPR consortium (Pseudomonas protegens and two strains of Bacillus paramycoides) on yield and economics of four perennial aromatic grasses (Vetiveria zizanioides, Cymbopogon citratus, C. martinii, and C. winterianus) in slightly alkaline (pH >8.50) soil. A field experiment was established in a complete randomized block design with two treatments (i.e. with PGPR consortium and without PGPR consortium) and three replications. The changes in growth (height, number of slips, and leaf area index), productivity (fresh shoot-root biomass and oil yield), quality (important secondary metabolites), and economics (cost of cultivation, gross, and net return) in response to PGPR were observed at three harvests. The species-specific effects of PGPR were found on the growth and productivity of perennial aromatic grasses. On an average, the highest increase in growth and productivity with the effect of PGPR was found in V. zizanioides followed by other grasses. The highest oil yield 16.38, 71.14, 53.13, and 49.49 kg ha À1 were recorded at third harvest in PGPR consortium treated plots for V. zizanioides, C. citratus, C. martinii, and C. winterianus, respectively. The agronomical economics show the highest net return of 2094.95 $US in the cultivation of V. zizanioides with the application of PGPR.

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Microbial Inoculants Assisted Growth of Chrysopogon zizanioides Promotes Phytoremediation of Salt Affected Soil

Cited by 8 publications

References 39 publications

Positive effects of a formulated microbial consortium on the growth and well-being of okra and tomato crops

Positive effects of a formulated microbial consortium on the growth and well-being of okra and tomato crops

Assessment of salt‐affected soil in Indo‐Gangetic Plain of Uttar Pradesh and prediction using regression model

Enhancing productivity of perennial aromatic grasses on marginal lands through plant growth promoting rhizobacteria

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