A novel method for controlling rice blast disease using fan-forced wind on paddy fields

Taguchi, Yoshihiro; Elsharkawy, Mohsen Mohamed; Hassan, Naglaa; Hyakumachi, Mitsuro

doi:10.1016/j.cropro.2014.05.014

Cited by 17 publications

(10 citation statements)

References 15 publications

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“…Wind is one of the climate factors that has the potential to reduce the damage of rice blast disease in two ways. The first way is to reduce the possibility of sticking the spores of the fungus to the leaf surface, and the second way is helping to dry the leaf surface and reduce deposition time of dew drops on the leaf surface, which is an important factor in disease infection [35,36].…”

Section: Conducive Environmental Conditions For Blast Diseasementioning

confidence: 99%

An Overview of Rice QTLs Associated with Disease Resistance to Three Major Rice Diseases: Blast, Sheath Blight, and Bacterial Panicle Blight

Zarbafi

Ham

2019

Agronomy

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Rice (Oryza sativa L.) is one of the most important crops that are produced as human food, directly feeding people more than any other crop. Hence, it is important to increase the yield potential of rice through improving the disease resistance to prevailing rice diseases. Blast caused by the fungus Magnaporthe oryzae, sheath blight caused by the fungus Rhizoctonia solani Kühn, and bacterial panicle blight caused by the bacteria Burkholderia glumae and B. gladioli are serious rice diseases in many rice-producing regions. In spite of the chronic damages from these major diseases, the quantitative resistance to each of them is not known very well and any available disease-resistant varieties are rare or not stable. Although gene-for-gene resistance that is mediated by an R-Avr interaction has been intensively studied for blast, quantitative (or horizontal) resistance to a broad spectrum of races in M. oryzae is still poorly understood. Identification of the quantitative trait loci (QTLs) related to these diseases and using marker technology can facilitate marker-assisted selection to screen resistant traits in individual resources, which could ultimately lead to the development of novel disease-resistant rice varieties. This article is a summary of identified QTLs that are associated with rice diseases, including blast, sheath blight, and bacterial panicle blight that can be used in breeding programs.

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Section: Conducive Environmental Conditions For Blast Diseasementioning

confidence: 99%

An Overview of Rice QTLs Associated with Disease Resistance to Three Major Rice Diseases: Blast, Sheath Blight, and Bacterial Panicle Blight

Zarbafi

Ham

2019

Agronomy

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“…tion of sunshine (Adachi, 1981;Leach, 1980;Taguchi et al, 2014). Water droplets on the leaf surface are one of the important factors that are implicated in outbreaks of many fungal diseases (Burrage, 1971;El Refaei, 1977;Long, 1955;Long, 1958;Monteith and Butler, 1979;Wallin, 1963).…”

Section: Leaf Positionmentioning

confidence: 99%

“…Persistence of guttation/dew droplets for a while on the leaf surface is a requisite for contagions with rice blast (Hashimoto et al, 1984;Hemmi and Abe, 1931;Kim et al, 1975;Yoshino, 1979). In our previous study (Taguchi et al, 2014), outbreaks of rice blast (both leaf and panicle blasts) were remarkably prevented by sending artificial wind which was generated 2 times daily for 30 min each starting at 11:00 PM and 4:00 AM, respectively, to the paddy fields to prevent leaf surfaces from remaining moist longer than 8 h, which is sufficient time for blast fungus infection (Hashimoto et al, 1984;Yoshino, 1979). Our results also show that it is necessary to adjust wind velocity to between 3 and 6 m/s to obtain sufficient blast disease control.…”

Section: Leaf Positionmentioning

confidence: 99%

“…Thus, the penetration of blast into leaves might be prevented or impeded (Adachi, 1981;Hashimoto et al, 1984;Misawa and Matsuyama, 1960;Mousanejad et al, 2009;Ono and Suzuki, 1959;Suzuki, 1969). Taguchi et al (2014) reported that outbreaks of rice blast were remarkably prevented by sending artificial wind to the paddy fields. In their study, a fan-forced wind was generated between 11:00 PM and 4:00 AM to prevent leaf surfaces from remaining moist longer than 8 h, which is sufficient time for blast fungus infection (Hashimoto et al, 1984;Yoshino, 1979).…”

Section: Introductionmentioning

confidence: 99%

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Effect of artificially-generated wind on removing guttation and dew droplets from rice leaf surface for controlling rice blast disease

Taguchi¹,

Elsharkawy²,

Hyakumachi³

2015

Afr. J. Biotechnol.

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The incidence and severity of leaf and panicle blasts were efficiently reduced in the wind-treated fields. Artificially-generated wind was performed on rice paddy field in order to measure the changes in temperature and humidity during and after the blowing process and to investigate the effects of sending wind on the formation and removal of guttation and dew droplets on rice leaves. A large electric fan was used to send wind with a depression angle of 30° at 4:00 AM for 30-40 min. During the blowing process, the humidity percentage was 100% in both treated and control paddy fields, the temperature was 0.8°C higher in the treated than the control field and the dew weight was rapidly decreased from 21 to 8 g in 20 min in the treated field. After the blowing process, the temperature started to rise at 6:28 AM (10 min earlier than the control block). It reached 29°C at 6:48 AM (30 min earlier than the control block) and remained higher than the control block till 7:20 AM (1-7°C higher). The humidity decreased to 95% at 6:30 AM (20 min earlier than the control block) and remained 95% till 6:42 AM, then rapidly decreased to reach 68% at 6:46 AM, and finally reached 60% at 7:20 AM. The humidity was 5-30% lower than that in the control block. Moreover, the dew weight increased to the initial level within 10 min and then decreased rapidly in both blocks starting from 6:20 AM. Using wind speed of 4.3 m/s or 3.2 m/s for 60 s per rotation at 4:00 AM, almost all the guttation droplets except those of less than 0.5 mm were removed from the surfaces of the 1 st and 2 nd uppermost leaves after two rotations (at velocity 4.3 m/s) or three rotations (at velocity 3.2 m/s) and the dew droplets were mostly removed after five rotations (at velocity 4.3 m/s) or nine rotations (at velocity 3.2 m/s). Sending wind at a speed of 3.2 m/s or faster removed guttation and dew droplets and suppressed the subsequent dew formation. Our data indicates that the removal of dew droplets on rice hills resulted in reduction of the disease development of Pyricularia oryzea.

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“…The smallest varieties ("micro-minis") grow to 6 inches or less. Recently, environment-friendly agriculture attempts to minimize the use of fungicides (Elsharkawy et al, 2012a(Elsharkawy et al, , 2012b(Elsharkawy et al, , 2013Hassan et al, 2014bHassan et al, , 2014cTaguchi et al, 2014;. Disease control by materials with low environmental effects is desired ((El-kazzaz et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Suppressive effects of a polymer sodium silicate solution on powdery mildew and root rot diseases of miniature rose

Elsharkawy¹,

Hase²,

Shimizu³

et al. 2015

Afr. J. Biotechnol.

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Sodium silicate was dissolved in water in either a monomer form or polymer form; the effects of both forms of sodium silicate aqueous solution on rose powdery mildew and root rot diseases of miniature rose were examined. Both forms of sodium silicate aqueous solution were applied to the roots of the miniature rose. Potassium silicate aqueous solution was used as a control and was compared to the effect of sodium silicate aqueous solution. The polymer sodium silicate aqueous solution was the most effective treatment against both powdery mildew and root rot diseases. Moreover, no inhibition effects of silicate solutions were observed in vitro on Pythium helicoides, the causal pathogen of rose root rot disease. The silicon contents in the roots of the miniature rose treated with polymer sodium silicate were significantly greater than that in plants treated with monomer sodium silicate. In conclusion, the suppressive effects of sodium silicate in the polymer form were confirmed against powdery mildew and root rot diseases of the miniature rose.

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A novel method for controlling rice blast disease using fan-forced wind on paddy fields

Cited by 17 publications

References 15 publications

An Overview of Rice QTLs Associated with Disease Resistance to Three Major Rice Diseases: Blast, Sheath Blight, and Bacterial Panicle Blight

An Overview of Rice QTLs Associated with Disease Resistance to Three Major Rice Diseases: Blast, Sheath Blight, and Bacterial Panicle Blight

Effect of artificially-generated wind on removing guttation and dew droplets from rice leaf surface for controlling rice blast disease

Suppressive effects of a polymer sodium silicate solution on powdery mildew and root rot diseases of miniature rose

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