Bioinoculants and Vermicompost Improve<i>Ocimum basilicum</i>Yield and Soil Health in a Sustainable Production System

Verma, Sanjeet K.; Pankaj, Umesh; Khan, Khushboo; Singh, Rajesh; Verma, Rajesh

doi:10.1002/clen.201400639

Cited by 13 publications

(18 citation statements)

References 27 publications

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“…The low carbon content (Table 1) indicates low levels of organic matter in the soil. Thus, the addition of HS would be an important practice to stimulate the growth of basil (Verma et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

“…In a recent study, Tiwari et al (2017) co-inoculated the AMF Glomus aggregatum and the fungus Trichoderma harzanium in basil and concluded that this interaction can reduce the negative effects of nematodes and, at the same time, increase plant growth and EO production. In another study with basil, inoculation with the AMF Glomus intraradices and humic substance (HS) addition (as vermicomposting) also increased the plant growth by 56% and the EO production by up to 48% (Verma et al, 2016).…”

Section: Introductionmentioning

confidence: 97%

“…These crops should produce large amounts of biomass and medicinal substances inherent to the species without the need for supplements and/or agrochemicals (Urcoviche et al, 2015;Lermen et al, 2017). The use of soil microorganisms, as arbuscular mycorrhizal fungi (AMF), is an alternative to increase the productivity of this type of plants since AMF contribute to a better development of them (Zubek et al, 2012;Befrozfar et al, 2013;Lermen et al, 2015a, Verma et al, 2016.…”

Section: Introductionmentioning

confidence: 99%

“…There are few studies on mycorrhization with medicinal, spicy, and aromatic plants. Some of them have already demonstrated that mycorrhizae promote in plants an increase in the absorption of nutrients such as phosphorus and nitrogen, an improvement in growth and an increase in the production of secondary metabolites with medicinal and antimicrobial activities (Zubek et al, 2012;Lermen et al, 2015b;Urcoviche et al, 2015;Verma et al, 2016). Few studies are found in the literature on the effects of AMF inoculation on the growth and production of essential oil (EO) of basil.…”

Section: Introductionmentioning

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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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%