Effect of plant extracts and an essential oil on the control of brown spot disease, tillering, number of panicles and yield increase in rice

Julienne, Nguefack; Wulff, G.; Dongmo, J.B. Lekagne; Fouelefack, Francois Romain; Fotio, D.; Mbo, Joseph; Torp, J.

doi:10.1007/s10658-013-0298-0

Cited by 24 publications

(14 citation statements)

References 21 publications

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“…Khoa et al (2011) reported the diseasereducing effect of Chromolaena odorata extract on sheath blight and other rice diseases. Nguefack et al (2013) found that plant extracts and an essential oil are effective for controlling rice disease, tillering, number of panicles and yield increase. Thus, extract of Biskatali, Thankuni, Nishinda and Tulsi are effective for reducing sheath blight incidence like recommended fungicide, Propiconazole.…”

Section: Resultsmentioning

confidence: 99%

Effect of aqueous extracts of some indigenous medicinal plants on sheath blight of rice

Islam

Monjil

2016

J Bangladesh Agric Univ

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Aqueous extract of some indigenous plant parts were evaluated for its efficacy to control sheath blight of rice. Six treatments were applied, viz. T1-control (water spray), T2-Tulsi (Ocientific tenuiflorum) extract (1:10), T3-Nishinda (Vitex negundu) extract (1:10), T4-Thankuni (Centella asiatica) extracts (1:10), T5-Biskatali (Polygonum hydropiper) extract (1:10) and T6-Proud (Propiconazole @ 0.2%) as a positive control. Effect of these plant extracts on percent tiller infection and percent relative lesion height of sheath blight of rice cultivar BRRI dhan 49 was determined at 55, 75 and 95 day after transplanting (DAT). Number of infected tillers per hill differed significantly among the different treatments. The highest number of infected tillers was observed in control treatment. The lowest and statistically similar number of infected tillers was found in fungicide, Proud (Propiconazole)-and Biskatali-treated plots. Reduced number of infected tillers was observed in Tulsi, Thankuni and Nishinda. Highest percent tiller infection was recorded in control and lowest percent tiller infection was recorded in Proud and Biskatali, which were statistically similar. Nishinda, Tulsi and Thankuni had reduced tiller infection in compare to control. Percent reduction of tiller infection over control was achieved by proud followed by Biskatali. The highest lesion height was observed in control and lowest lesion height was found in Proud followed by Biskatali. The highest percent relative lesion height was recorded in control followed by Thankuni. The lowest percent relative lesion height was recorded in Proud preceded by Biskatali. Highest percent reduction of relative lesion height over control was achieved by proud followed by Biskatali. Thus, plant extracts of Biskatali, Tulsi, Nishinda and Thankuni are effective to control sheath blight of rice. Among the plant extracts, Biskatali showed highest control of sheath blight disease of rice.

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Section: Resultsmentioning

confidence: 99%

Effect of aqueous extracts of some indigenous medicinal plants on sheath blight of rice

Islam

Monjil

2016

J Bangladesh Agric Univ

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“…In comparison with the findings of Nguefack et al (2013), in which same methods were used for the evaluation of the antifungal potential, the activities of EEc and AEc against B. oryzae, were near but somewhat less important; this slight difference could be explained by the fact that our extraction period last 12 h against 24 h in theirs; the extraction time may have an influence on the content and/or the chemical composition of the secondary metabolites responsible for the biological (antifungal) effects. Very little work has been done on the phytoprotectory potential of O barrelieri; Its activities vis-à-vis B. oryzae and F. moniliforme are reported here for the first time; Nevertheless, Dakole et al (2016) showed in their work that AEo and EEo completely inhibited the growth of Fusarium oxysporum f.sp lycopersici at 50000 and 25000 μg / ml and that of Phytophtora infestans at 25000 and 12500 μg/ml, respectively; they suggested the presence of phenols, flavonoids and saponins in these extracts being responsible of this inhibitory effect.…”

Section: Discussionmentioning

confidence: 63%

Effects of extracts of Oxalis barrelieri L. and Cymbopogon citratus stapf, coupled with NaCl sorting on; seed health, germination and seedlings vigor of rice (Oryzae sativa L).

Romain¹,

Julienne²,

Blaise³

et al. 2018

Afr. J. Agric. Res.

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The extracts of Oxalis barrelieri and Cymbopogon citratus were tested for their antifungal activity against Bipolaris oryzae and Fusarium moniliforme, and use as seed treatment coupled with NaCl treatment to improve the seed germination and the seedlings vigor of treated rice seeds. The significance of the inhibitory activity of the plant extracts against B. oryzae and F moniliforme was type of extract and concentration dependent. The ethanolic extract of C. citratus at 10000 ppm, showed the highest inhibitory effect, with 58.51 and 55.9% growth inhibition of F. moniliforme and B. oryzae, respectively. The rice seeds sorted in 20% NaCl solution had a greater mass (quantify), a germination percentage of 12.5% higher as compared to seeds sorted in with water and 19.5% higher than that of unsorted seeds. A moderate positive and significant linear relationship (Rho (78) = 0.427 **, p <0.01) was shown between weight and germination of rice seeds. The ethanol extracts of O. barrelieri and C. citratus stimulated rice seed germination at comparable degree; 15.15 to 22.06% from the top of paper method and 11.1 to 16.2% from sand method in green house trials. Rice seed treatments at 1% concentration exhibited the best germination and reduced the infestation of B. oryzae and F. moniliforme by 25.25 and 9.83%, respectively. Stressed seeds treated with plant extracts showed less pronounced decrease (5.08 %) in germination compared to untreated stressed seed (25.5%). Sorting of rice seeds with 20% NaCl and/or treatment with ethanol extracts of O. barrelieri and C. citratus showed potential green alternative to reduce seed-borne infestation, improvement of rice vigor and seed germination.

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“…Despite the reports of their effectiveness against several diseases, mechanisms of the action of essential oils remain elusive. Although a direct effect in pathogen is well documented (Pereira et al, 2012;Nguefack et al, 2013;Silva et al, 2014Silva et al, , 2017Mourão et al, 2017), an indirect effect, by inducing plant defenses, cannot be ruled out. Therefore, this work aimed to assess the effect of B. maydis and E. turcicum as well as the essential oil of M. citrifolia in the activity of defense enzymes in corn plants.…”

Section: Introductionmentioning

confidence: 98%

“…Plant essential oils have shown great potential in disease control. In vitro, essential oil of Callistemon citrinus and Cymbopogon citratus were demonstrated to completely inhibit the mycelial growth of Alternaria padwickii and Bipolaris oryzae and experiments in the field showed that brown spot severity was reduced by 20-80% in rice (Nguefack et al, 2013). Essential oils of cinnamon, citronella, lemongrass, clove, tea tree, thyme, neem and eucalyptus were promising for the control of coffee rust since they inhibited germination of urediniospores of Hemileia vastatrix; transmission electron microscopy analysis showed that urediniospores exposed to oils of clove, citronella and thyme promoted cellular disorganization and cytoplasmic vacuolization (Pereira et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Enzymatic Activity in Essential Oil-Treated and Pathogen-Inoculated Corn Plants

Veloso¹,

Ferreira²,

Debona³

et al. 2018

JAS

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Bipolaris maydis and Exserohilum turcicum are important fungal pathogens that cause leaf blight in corn whose control have been difficult. Essential oils are a promising and environmentally friendly alternative for disease management, but the mechanisms of action remain poorly studied. Here, we aimed to assess the effect of B. maydis and E. turcicum as well as the essential oil of Morinda citrifolia in the activity of plant defense enzymes in corn plants. Experiments were carried out in a completely randomized design with three replications and six treatments as they follow: (T1): corn plants inoculated with B. maydis; (T2): corn plants inoculated with E. turcicum; (T3): corn plants treated with essential oil of M. citrifolia (0.25%) and inoculated with B. maydis; (T4): corn plants treated with essential oil of M. citrifolia (0.25%) and inoculated with E. turcicum; (T5): corn plants treated with essential oil of M. citrifolia (0.25%); and (T6): corn plants non-inoculated and treated with distilled water. Protein content (PC) and activities of the enzymes ascorbate peroxidase, catalase, chitinase (CHI), peroxidase (POX) and superoxide dismutase (SOD) were assessed. PC was significantly decreased, whereas CHI and SOD activity was higher in T1-T5 compared to T6. T4 and T5 significantly increased POX activity relative to T6. Therefore, our findings suggest that the essential oil of M. citrifolia may play an active role in disease control by activating defense enzymes in corn plants.

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Effect of plant extracts and an essential oil on the control of brown spot disease, tillering, number of panicles and yield increase in rice

Cited by 24 publications

References 21 publications

Effect of aqueous extracts of some indigenous medicinal plants on sheath blight of rice

Effect of aqueous extracts of some indigenous medicinal plants on sheath blight of rice

Effects of extracts of Oxalis barrelieri L. and Cymbopogon citratus stapf, coupled with NaCl sorting on; seed health, germination and seedlings vigor of rice (Oryzae sativa L).

Enzymatic Activity in Essential Oil-Treated and Pathogen-Inoculated Corn Plants

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