Effect of Glyphosate on Arbuscular Mycorrhizal Fungi in Soil and Growth of Abelmoschus esculentus

Brindhavani, P. M.; Janaki, P.; Ejilane, J.

doi:10.29321/maj.2018.000209

Cited by 3 publications

(2 citation statements)

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“…This could also be attributed to the increased foraging capacity of AM fungi in soil due to increased fungal hyphae and AMF population. However, the decrease in AM fungi population with increased rate of glyphosate was reported by Brindhavani et al (2018) who have reported that the poor native AM fungi mycorrhization and spore counts in sodic soil could be the result of poor root penetration and dispersed soil structure caused by the accumulation of + exchangeable Na in the rhizosphere region.…”

Section: Resultsmentioning

confidence: 92%

Influence of arbuscular mycorrhizal fungi on glyphosate dissipation rate in okra cultivated sodic soil of Tamil Nadu

Brindhavani¹,

Janaki²,

Gomadhi³

et al. 2020

JEB

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Aim: To elucidate the influence of non target Arbuscular Mycorrhizal (AM) fungi on glyphosate dissipation in okra cultivated sodic soil of Tamil Nadu. Methodology: A field experiment was carried out during Rabi 2017-18 to study the interactive effect of glyphosate and Arbuscular mycorrhizal fungi (AM) on glyphosate dissipation in sodic soil from okra (A. esculentus) grown field. Experiment was laid adopting Randomized Block Design (RBD) with different rates of glyphosate and with and without AM fungi. Glyphosate was applied as pre-plant herbicide 20 days before sowing, and AM biofertilizer was applied as basal before sowing of okra. Soil samples were collected from the field at different time interval after glyphosate application and analysed for glyphosate and Amino Methyl Phosphonic Acid (AMPA) residues. Results: Glyphosate persistence decreased with time and degraded with the mean half-life ranging from 5.09 to 10.35 days by following first order reaction kinetics. AMPA was witnessed from day 1 and increased up to 15th day and followed first order reaction kinetics dissipation with the mean half-life of 8.62 to 13.06 days. Glyphosate and AMPA residues were recorded below detection limit (0.01 mg kg-1) on 45th and 60th days, respectively, in soil. Interpretation: The higher rates of glyphosate showed enhanced persistence of glyphosate and its metabolite AMPA in soil, hence application of AM fungi 100 kg ha-1 with lower glyphosate rate of 6 ml/L can be recommended for okra cultivated sodic soil with the safer waiting period of after 45 days harvest.

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Section: Resultsmentioning

confidence: 92%

Influence of arbuscular mycorrhizal fungi on glyphosate dissipation rate in okra cultivated sodic soil of Tamil Nadu

Brindhavani¹,

Janaki²,

Gomadhi³

et al. 2020

JEB

Self Cite

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“…The integrated treatment of C2G2 produced its greatest freshly pod yield (13.47 t/ha) whereas C0G0 produced the least amount (4.13 t/ha) (Figure 7). Mehraj et al (2015); Chowdhury et al (2014); Vijayaraghavan (1999) and Surendra et al (2006) reported that GA3 gave the highest fruit yield.…”

Section: Pod Yield Per Hectarementioning

confidence: 99%

Foliar application of gibberellic acid in combination with cowdung enhances growth and yield attributes of okra(Abelmoschus esculentus)

MT,

MA,

et al. 2023

JAFE

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A field experiment was conducted at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh during March to July 2020 to investigate the results of various amount of cowdung and gibberellic acid (GA3) on okra growth and production. The experiment comprised of Factor A: three doses of cowdung such as C0= 0 ton (Control), C1= 5 t ha-1, C2= 10 t ha-1and Factor B: four variable concentrations of GA3such as G0= Control (with no gibberellic acid), G1= 50 ppm gibberellic acid, G2= 100 ppm gibberellic acid and G3= 150 ppm gibberellic acid. Three replications ofthe experiment were set up using a Randomized Complete Block Design (RCBD). Most of the developmental and yield-contributing parameters of the okra tested significantly varied when various quantities of cowdung and varying amounts of gibberellic acid wereused. The 10 t ha-1cowdung (C2) had the maximum yield (11.34 t/ha) as well as the amount of green pods(13.77)per plant. From a 0 t ha-1cowdung (C0) treatment, the fewest green pods (14.18), and lowest green pod production (5.98 t/ha), were produced. On the other hand, gibberellic acid with 100 ppm (G2) showed the best performance on number of green pods (13.77), green pod output (10.51 t/ha) and the lowest performance on number of green pods (10.05), green pod produce (6.47 t/ha) from control (G0) treatment (without gibberellin). Okra's development and yield-contributing characteristics were greatly impacted by the interaction of cowdung and gibberellic acid. The integration of 10 t ha-1 cowdung (C2) and 100 ppm gibberellic acid performed the best on the number of green pods (15.91), green pod yield (13.47 t/ha) tremendously non-identical from the combination of treatment of 0 t ha-1(C0) with no gibberellic acid applied plants in the same parameters viz. number of green pods (7.72), green pod yield (4.13 t/ha). The finding of this study suggested that application of 10 tons cowdung per hectare combine with 100 ppm gibberellic acid to be recommended for okra cultivation.

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Tembotrione combinations on enzyme activities and arbuscular mycorrhiza in maize planted soil

Goalla

Janaki

Ramalakshmi

et al. 2022

Toxicological & Environmental Chemistry

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Effect of Glyphosate on Arbuscular Mycorrhizal Fungi in Soil and Growth of Abelmoschus esculentus

Cited by 3 publications

References 0 publications

Influence of arbuscular mycorrhizal fungi on glyphosate dissipation rate in okra cultivated sodic soil of Tamil Nadu

Influence of arbuscular mycorrhizal fungi on glyphosate dissipation rate in okra cultivated sodic soil of Tamil Nadu

Foliar application of gibberellic acid in combination with cowdung enhances growth and yield attributes of okra(Abelmoschus esculentus)

Tembotrione combinations on enzyme activities and arbuscular mycorrhiza in maize planted soil

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