&amp;lt;i&amp;gt;In Vitro&amp;lt;/i&amp;gt; Efficacy of Botanicals against Rice Blast Pathogen &amp;lt;i&amp;gt;Magnaporthe oryzae oryzae&amp;lt;/i&amp;gt;

Nazifa, Z.; Aminuzzaman, F. M.; Laila, Lia; Rehena, M. K.

doi:10.4236/ajps.2021.124045

Cited by 3 publications

(3 citation statements)

References 21 publications

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“…On the other hand, the lowest inhibition was observed using Allium cepa (onion) extracts at a concentration of 0.1% (1:0.25 w/v), which resulted in 38.33 mm of growth inhibition of the pathogen under in-vitro conditions [27]. For ethanol extracts of botanical, neem exhibited the highest growth inhibition of Magnaporthe oryzae oryzae (MoO) at all tested concentrations, with inhibition percentages of 92.62%, 90.52%, and 88.42%, respectively [28] that support our study.…”

Section: Effect Of Different Control Measures On Association Of Mot I...mentioning

confidence: 97%

Ecofriendly Management of Wheat Panicle Blast Caused by Magnaporthe oryzae triticum

Meshuk,

Aminuzzaman,

Islam

et al. 2023

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In this study, three wheat varieties were tested to determine seed germination and the incidence of Magnaporthe oryzae triticum (MoT). Among these varieties, BARI Gom 24 (Prodip) wheat seed exhibited the highest seed germination rate (93%) but also had the highest incidence (30%) of MoT. To manage blast disease in an ecofriendly manner, seven treatments were employed: T 1 = Control, T 2 = Garlic clove extracts, T 3 = Aloe vera leaf extracts, T 4 = Black cumin seed extracts, T 5 = Neem leaf extracts, T 6 = Nativo 75 WG, and T 7 = Provax 200 WP. The experiment was conducted using a Randomized Complete Block Design (RCBD) layout with three replications using Prodip wheat variety that exhibited highest MoT infection severity based on laboratory analysis among collected varieties. Data were collected on blast disease incidence (%), disease severity, and various growth and yield parameters of wheat. The experiment's results indicated that among all the treatments, T 7 (Seed treatment with Provax 200 WP) and T 5 (Foliar spraying with Neem leaf extract) performed better in controlling blast disease in wheat. The lowest blast disease incidence (%) was observed with T 7 (Provax 200 WP), with values of 7.86, 9.86, and 10.19 recorded during the milking stage, soft dough stage, and hard dough stage of wheat, respectively. T 5 (Neem leaf extract) also demonstrated a statistically equivalent reduction in blast disease incidence (%). In terms of disease severity, T 7 (Seed treatment with Provax 200 WP) showed the lowest values of 1.03, 1.23, and 1.63 during the milking stage, soft dough stage, and hard dough stage of wheat, respectively. Foliar spraying with neem leaf extract also exhibited similar result as of Provax 200 WP regarding panicle blast severity. As a result of these findings, it can be concluded that T 5 (Neem leaf extract) is recommended as an ecofriendly management approach for blast disease in wheat.

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Section: Effect Of Different Control Measures On Association Of Mot I...mentioning

confidence: 97%

Ecofriendly Management of Wheat Panicle Blast Caused by Magnaporthe oryzae triticum

Meshuk,

Aminuzzaman,

Islam

et al. 2023

Self Cite

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“…The use of plant extracts for the management of diseases in various crop has been studied by many researchers over the years [155,40,47,62,24,87,121,94]. In rice, the use of plant products for the management of various pathogenic microorganisms has also being explored for the control of some of the most destructive diseases [98]. Harish et al [47] investigated the efficacy of fifty plant extracts against rice brown spot disease (Bipolaris oryzae (Cochliobolus miyabeanus)).…”

Section: Botanicals In Plants Disease Managementmentioning

confidence: 99%

Managing the Imminent Danger of Rice Blast (Pyricularia oryzae Cav.) and Sheath Blight (Rhizoctonia solani Kühn) Disease: A Critical Review Article

Persaud¹,

McGowan²,

Persaud³

2021

AJAF

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Rice is one of the most important crop planted on earth. It provide food and employment for thousands of persons daily through out the world. In Guyana the rice industry is one of the largest user of agricultural lands and contributies more than 20% to the country gross domestic product (GDP). The rice crop is known to suffer from several biotic and abiotic factors. Of which rice blast (P. oryzae) and sheath blight (R. solani) disease identified as two of the most devastating disease affecting the rice cultivation in Guyana. In this context, the present critical review article entitled 'Managing the imminent danger of Rice Blast (Pyricularia oryzae Cav.) and Sheath Blight (Rhizoctonia solani Kühn) Disease' was taken up to look at the most practical disease management approaches available and can be utilized to mitigate the imminent threat pose by the rice blast and sheath blight disease. The review will focus on: disease resistant screening and understand the genotype and environment interactions; study the expression pattern of proteins in resistant and susceptible genotypes against blast pathogen (P. oryzae); examine the efficacy of botanicals, biocontrol agents and new generation fungicides against blast and sheath blight disease under different conditions. This will form a foundation for the exploration of the various disease management stratigies for blast and sheath blight disease.

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“…the use of plant extracts and biological control agents for the management of blast disease (Venkateswarlu et al, 2013;Liu et al, 2018;Hashim et al, 2019). Many researchers studied the use of plant extracts for the management of diseases in rice (Harish et al, 2008;Kagale et al, 2011;Devi and Chhetry, 2013;Rani and Singh, 2014;Nazifa et al, 2021;Nur et al, 2021). Similarly, several researchers have explored the potential use of biocontrol agents in the management of rice diseases (Saravanakumar et al, 2009;Nagendran et al, 2013;Liu et al, 2018;Mathurot et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Biologicals and New Generation Fungicides in the Management of Blast Disease in Rice

Persaud¹,

Saravanakumar²,

Persaud³

et al. 2021

Front. Sustain. Food Syst.

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Background: Blast is a devastating disease in rice production. The current research tested the efficacy of biologicals and fungicides against blast. Aqueous extracts of Azadirachta indica, Ocimum basalicum, Cymbopogan flexousus, Thymus vulgaris, Aloe vera, Tagetes patula, Cordia curassavica, Aegle marmelos, Allium fistulosum, Syzygium aromaticum, and Calotropis gigantea were tested in vitro at 5, 10, and 15% concentrations against Magnaporthe oryzae. Also, two isolates, Bacillus cereus OG2L and B. subtilis OG2A, and one isolate, Azotobacter SAG19, and, similarly, five new generation fungicides were evaluated at three different doses against blast pathogen M. oryzae in vitro. The treatments that exhibited the best performance in vitro were further evaluated against blast disease under field conditions.Results: Extracts of T. patula (5%), C. gigantea (5%), C. curassavica (10%), A. fistulosum (10%), and A. marmelos (15%) showed greater than 81% inhibition to M. oryzae in vitro. Likewise, all three biocontrol agents, viz. B. cereus OG2L, B. subtilis OG2A, and Azotobacter SAG19, demonstrated more than 50% inhibition of mycelial growth of pathogen in vitro, and the commercial formulations of fungicides Propineb, Trifloxystrobin+Tebuconazole, Tebuconazol+Triadimenol, Bacillus subtilis Strain QST 713, and Cinnamon Oil 8%+Clove Oil 2% also significantly inhibited M. oryzae. Under field conditions, C. curassavica (10%), A. marmelos (15%), C. gigantea (5%); B.cereus OG2L; B.subtilis OG2A; Proineb and Trifloxystrobin+Tebuconazole were effective in reducing disease in addition to yield enhancement.Conclusion: Overall, the plant extracts (C. curassavica at 10%, A. marmelos at 15%, C. gigantea at 5%); bio-agents (B. cereus OG2L, B. subtilis OG2A both at 2g/l), and new generation fungicides Antracol 70WP (Proineb) at 2.5 g/l and Nativo 75 WG (Trifloxystrobin+Tebuconazole) at 0.5 g/l provided effective control against blast disease and superior plant growth and yield compared with other treatments and untreated control.

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<i>In Vitro</i> Efficacy of Botanicals against Rice Blast Pathogen <i>Magnaporthe oryzae oryzae</i>

Cited by 3 publications

References 21 publications

Ecofriendly Management of Wheat Panicle Blast Caused by <i>Magnaporthe oryzae triticum</i>

Ecofriendly Management of Wheat Panicle Blast Caused by <i>Magnaporthe oryzae triticum</i>

Managing the Imminent Danger of Rice Blast (<i>Pyricularia oryzae</i> Cav.) and Sheath Blight (<i>Rhizoctonia solani</i> Kühn) Disease: A Critical Review Article

Biologicals and New Generation Fungicides in the Management of Blast Disease in Rice

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&lt;i&gt;In Vitro&lt;/i&gt; Efficacy of Botanicals against Rice Blast Pathogen &lt;i&gt;Magnaporthe oryzae oryzae&lt;/i&gt;

Cited by 3 publications

References 21 publications

Ecofriendly Management of Wheat Panicle Blast Caused by &lt;i&gt;Magnaporthe oryzae triticum&lt;/i&gt;

Ecofriendly Management of Wheat Panicle Blast Caused by &lt;i&gt;Magnaporthe oryzae triticum&lt;/i&gt;

Managing the Imminent Danger of Rice Blast (&lt;i&gt;Pyricularia oryzae&lt;/i&gt; Cav.) and Sheath Blight (&lt;i&gt;Rhizoctonia solani&lt;/i&gt; Kühn) Disease: A Critical Review Article

Biologicals and New Generation Fungicides in the Management of Blast Disease in Rice

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<i>In Vitro</i> Efficacy of Botanicals against Rice Blast Pathogen <i>Magnaporthe oryzae oryzae</i>

Ecofriendly Management of Wheat Panicle Blast Caused by <i>Magnaporthe oryzae triticum</i>

Ecofriendly Management of Wheat Panicle Blast Caused by <i>Magnaporthe oryzae triticum</i>

Managing the Imminent Danger of Rice Blast (<i>Pyricularia oryzae</i> Cav.) and Sheath Blight (<i>Rhizoctonia solani</i> Kühn) Disease: A Critical Review Article