Use of some emulsified plant seed oils as a safe alternative for the management of<i>Meloidogyne incognita</i>infecting tomato

Radwan, Mohamed; Kassem, S. M. I.; Abu-Elamayem, M. M.; El-Maadawy, E. K.

doi:10.1080/03235400600587607

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…Nematodes, in particular Meloidogyne incognita, which has the ability to alter the normal physiology of plants and cause poor nutrient uptake, lower growth, and consequently low quality and quantity of the yield, are implicated in the improved performance of the treated plants. Sesame oil in the current study had the least efcacy in reducing nematode reproduction in soil and compared to another study which involved plant seed oils such as cotton, fax canola, olive, soybean, and sesame applied against root-knot nematode in tomato; sesame oil was inefcient in reducing nematode populations in tomato [6].…”

Section: Discussionmentioning

confidence: 67%

“…Te aqueous extracts caused a higher mortality rate, and the periwinkle extracts showed a greater inhibition of egg hatching relative to solidago extracts. In another study involving plant seed oils (canola, cotton, fax, olive, soybean, and sesame), against root-knot nematode in tomatoes, sesame oil had the least efcacy potential in reducing nematode populations in tomatoes and tomato shoot lengths were also reduced [6]. Other studies conducted have revealed some variations in relation to the efectiveness of the seed treatments on nematode population reduction, as a consequence of prevailing soil and environmental conditions, as well as chemical concentrations [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Preplant Seed Protectants for the Management of Root-Knot Nematode of Okra in Ghana

Baah,

Nyaku,

Agamah

et al. 2024

International Journal of Agronomy

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Root-knot nematode (Meloidogyne incognita) poses a significant threat to okra production, resulting in substantial yield losses. The objectives of this study were to assess the impact of biological seed protectants on the growth and establishment of okra plants and nematode population reduction in soil. Okra seeds were coated with 40% sesame oil, 50% neem oil, 100% citrus oil, velum at 3.8 ml/7l of water, and a control (sterilized distilled water) at different time intervals of 30 min, 60 min, 90 min, and 120 min to determine the germination percentages and vigor. The experimental setup was laid out in a completely randomized design (CRD), with three replications, utilizing a Jacobson table for the germination test. The laboratory results demonstrated significant differences (P<0.05) in germination percentage and vigor index across the different time intervals. Neem oil, citrus oil, and velum exhibited higher germination percentages and vigor indices at all time intervals. Notably, 30-minute time interval proved to be efficient with 100% citrus oil producing 80.33% germination and 965 vigor index and 50% neem oil producing 75% germination and 994 vigor index. Field evaluations revealed citrus at 100% concentrations as seed coating (T5) and neem at 50% concentrations as seed coating (T3), with the highest nematode reductions (90.1% and 90.4%) and least reproductive factors (RFs) of 0.05 and 0.04, respectively, at the Atomic farms. The study has revealed that treating okra seeds with 100% citrus oil and 50% neem oil has the efficacy of reducing nematode reproduction in soil, while enhancing germination and seedling vigor, together with an improvement in growth and yield. Sesame oil has a negative influence on seed germination and vigor and is therefore not recommended as a preplant protectant.

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Section: Discussionmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Evaluation of Preplant Seed Protectants for the Management of Root-Knot Nematode of Okra in Ghana

Baah,

Nyaku,

Agamah

et al. 2024

International Journal of Agronomy

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“…Finally, a concentration of 1 mL/L ( 930 mg/L ) linseed oil reduces the nematode population in pepper plants by 36–50% depending on the used cultivar ( Eldeeb et al., 2022 ). Formulated linseed oil was tested against M. incognita infecting tomato plants and 26% less galls were observed at a dose of 0.3 mL formulated linseed oil/kg substrate ( Radwan et al., 2007 ). Product X contains 43.1 mg/L linseed oil, which is remarkably lower compared to literature values.…”

Section: Discussionmentioning

confidence: 99%

A combination of plant-based compounds and extracts acts nematicidal and induces resistance against Meloidogyne incognita in tomato

Degroote,

Schoorens,

Pockelé

et al. 2024

Front. Plant Sci.

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Considering the stricter European regulations for chemical pesticides (e.g. abolishment of the use of chemical soil fumigation products, such as methyl bromide), the need for more sustainable plant protection products is strongly increasing. In this research, Product X, an innovative mixture of bio-nematicidal compounds was developed and evaluated for efficacy. Product X showed a direct nematicidal effect against the root-knot nematode Meloidogyne incognita. In pot trials with tomato plants infected with M. incognita, Product X treatment lead to a significant reduction in nematode-induced gall formation. mRNA-sequencing indicated alterations in phytohormone levels and ROS-metabolism in tomato roots upon treatment with Product X, which was subsequently biochemically validated. Increased levels of abscisic acid and peroxidase activity seem to be the main factors in the response of tomato plants to Product X. Long-term administration of Product X did not yield negative effects on tomato growth or yield. In conclusion, Product X provides a new interesting mix of bio-active compounds in the combat against root-knot nematodes.

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“…Among these practices, the use of botanicals is a very attractive alternative because they degrade to nontoxic products, less harmful to non-target organisms and on environment friendly (Tariq et al, 2018). There are good number of plants having nematicidal substances in their leaves, fruits, seeds, bulbs and even roots (Radwan et al, 2007;Wiratno et al, 2009;Moosavi 2012;Radwan et al, 2012). Some of them give the benefit ofgreen manure along with nematode control.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Potential of Some Egyptian Plants as Soil Amendments in Meloidogyne Incognita Management on Tomato

Ibrahim,

Radwan,

Saad

et al. 2018

JBiopest

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In a pot experiment, dried plant materials of Brassica oleracea, Bougainvillea spectabilis, Emex spinosa and Erythrina humina were mixed with soil at the rate of 5 and 10 g/kg soil and compared their nematicidal potential with oxamyl, against the root-knot nematode, Meloidogyne incognita infecting tomato plants under greenhouse conditions. In addition, their effects on the growth of tomato plants were also assessed. The results showed that all the amendments exhibited varying degree of reduction compared to control. Moreover, Erythrina humenea recorded the highest reductions in galls/ root system (96.77%), egg masses/ root system (97.99%), eggs/ mass (77.11%) and soil populations/250g soil (93.60%). Except E. spinosa, employing high rate of the tested dried plants gave higher activity in suppressing the nematode parameters than the low rate. Besides highly nemato-toxic potential, B. oleracea, B. spectabilisor, E. spinosa showed phytotoxic effects on tomato when used at the high rate. These dried plant materials at low rate show promising nematicidal activity and may offer possibilities as non-chemical alternatives for the management of M. incognita on tomato.

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Use of some emulsified plant seed oils as a safe alternative for the management ofMeloidogyne incognitainfecting tomato

Cited by 5 publications

References 10 publications

Evaluation of Preplant Seed Protectants for the Management of Root-Knot Nematode of Okra in Ghana

Evaluation of Preplant Seed Protectants for the Management of Root-Knot Nematode of Okra in Ghana

A combination of plant-based compounds and extracts acts nematicidal and induces resistance against Meloidogyne incognita in tomato

Assessing the Potential of Some Egyptian Plants as Soil Amendments in Meloidogyne Incognita Management on Tomato

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