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Relevant bibliographies by topics / Rice sheath blight

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Academic literature on the topic 'Rice sheath blight'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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Journal articles on the topic "Rice sheath blight"

1

Park, Dong-Soo, Ronald J. Sayler, Yeon-Gyu Hong, Min-Hee Nam, and Yinong Yang. "A Method for Inoculation and Evaluation of Rice Sheath Blight Disease." Plant Disease 92, no. 1 (2008): 25–29. http://dx.doi.org/10.1094/pdis-92-1-0025.

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Sheath blight of rice, caused by Rhizoctonia solani, is one of the most important rice diseases worldwide; however, no rice cultivar has been found to be completely resistant to this fungus. To facilitate detailed analysis of sheath blight resistance at genetic, molecular, biochemical, and functional genomic levels, new methods were developed for effective and uniform infection and accurate evaluation of the disease. The efficiency of R. solani infection was tested on two resistant (Tetep and Jasmine 85) and two susceptible (Chucheongbyeo, Junambyeo) cultivars using three different inoculum types (agar block, liquid cultured mycelia ball, and mycelia suspension). By covering the inoculated sheaths with aluminum foil to maintain humidity, 100% infection rate was achieved in this study. Liquid cultured mycelia balls caused significantly longer lesions (5.4 cm) than other types of inoculum, including agar block (2.4 cm) and mycelia suspension (1.6 cm). An improved method for evaluating sheath blight disease was selected by comparing two methods for evaluating disease severity among three partially resistant cultivars and five susceptible cultivars inoculated with liquid cultured mycelia balls. In addition, a new formula was developed to calculate the disease susceptibility index. Lesion length and the susceptibility index generally were correlated in each leaf, but there were discrepancies between the two evaluation methods due to differences in plant architecture among the cultivars. The susceptibility index calculated using the new formula was the most accurate method for evaluating sheath blight disease across all cultivars. The effect of heading date and panicle number also was evaluated in relation to sheath blight resistance. Cultivars with late heading dates generally were more resistant to sheath blight than those with early heading dates.

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Singh, Ramji, Durga Prasad, and Alka Singh. "Integrated nutrient management to enhance biochemical resistance in rice against sheath blight." Journal of Applied and Natural Science 1, no. 1 (2009): 82–88. http://dx.doi.org/10.31018/jans.v1i1.44.

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Application of potassium either as recommended, deficient or excess dose, enhanced the level of phenolic contents, increased incubation period and thereby decreased the sheath blight severity. Application of nitrogen and phosphorous, either as recommended, deficient or excess dose resulted in reduction of phenolic content, shorter incubation period and thereby increasing the sheath blight severity. Recommended sulphur application, enhanced the phenolic contents, increased incubation period and thereby decreased the sheath blight severity. Recommended zinc application resulted in enhancement of phenolic contents, longer incubation period and thereby decreasing the sheath blight severity. Excess application of zinc, reduced the phenolic contents and incubation period but the severity of sheath blight was also lowered down. Recommended iron application (1.5 kg./ha) enhanced the phenolic contents and incubation period with a decreased level of sheath blight severity. Deficient and excess doses of iron also showed the similar trend of effect on phenolics, incubation period and sheath blight severity.

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3

Groth, D. E., and J. A. Bond. "Effects of Cultivars and Fungicides on Rice Sheath Blight, Yield, and Quality." Plant Disease 91, no. 12 (2007): 1647–50. http://dx.doi.org/10.1094/pdis-91-12-1647.

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The development of sheath blight (Rhizoctonia solani)-resistant rice (Oryza sativa) cultivars will allow producers to use less fungicide and to avoid significant reductions in grain and milling yields. Among cultivars currently in cultivation in the southern United States rice-producing region, sheath blight resistance levels range from very susceptible to moderately susceptible. A study was conducted to determine the response of cultivars with different levels of susceptibility to sheath blight inoculations and fungicide applications and to determine the impact of sheath blight disease development on rice yield and quality. Sheath blight epidemics in field plots were initiated by inoculation at the panicle differentiation growth stage from 2003 through 2005. Azoxystrobin at 0.17 kg a.i. ha–1 and flutolanil at 0.56 kg a.i. ha–1 were applied in sequential applications at midboot and 50 to 70% heading. Inoculation significantly increased sheath blight severity and incidence and caused yield losses of 4% in moderately susceptible cv. Francis to 21% in very susceptible cv. Cocodrie. Milling yield was affected to a lesser extent. Fungicide treatments reduced sheath blight incidence and severity regardless of cultivar. Azoxystrobin was more effective than flutolanil in minimizing yield loss due to sheath blight in all cultivars except Francis.

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Zhu, Guang, Enxing Liang, Xiang Lan, et al. "ZmPGIP3 Gene Encodes a Polygalacturonase-Inhibiting Protein that Enhances Resistance to Sheath Blight in Rice." Phytopathology® 109, no. 10 (2019): 1732–40. http://dx.doi.org/10.1094/phyto-01-19-0008-r.

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Plant polygalacturonase-inhibiting protein (PGIP) is a structural protein that can specifically recognize and bind to fungal polygalacturonase (PG). PGIP plays an important role in plant antifungal activity. In this study, a maize PGIP gene, namely ZmPGIP3, was cloned and characterized. Agarose diffusion assay suggested that ZmPGIP3 could inhibit the activity of PG. ZmPGIP3 expression was significantly induced by wounding, Rhizoctonia solani infection, jasmonate, and salicylic acid. ZmPGIP3 might be related to disease resistance. The gene encoding ZmPGIP3 was posed under the control of the ubiquitin promoter and constitutively expressed in transgenic rice. In an R. solani infection assay, ZmPGIP3 transgenic rice was more resistant to sheath blight than the wild-type rice regardless of the inoculated plant part (leaves or sheaths). Digital gene expression analysis indicated that the expression of some rice PGIP genes significantly increased in ZmPGIP3 transgenic rice, suggesting that ZmPGIP3 might activate the expression of some rice PGIP genes to resist sheath blight. Our investigation of the agronomic traits of ZmPGIP3 transgenic rice showed that ZmPGIP3 overexpression in rice did not show any detrimental phenotypic or agronomic effect. ZmPGIP3 is a promising candidate gene in the transgenic breeding for sheath blight resistance and crop improvement.

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5

MOCHIZUKI, Hiroto, Fujio ARAKI, and Kunihiro YABUTANI. "Rice Sheath Blight Control with Flutolanil." Journal of Pesticide Science 12, no. 1 (1987): 29–33. http://dx.doi.org/10.1584/jpestics.12.29.

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6

Singh, Rajbir. "Sheath Blight of Rice: A Review." International Journal of Agricultural Invention 1, no. 02 (2016): 161–69. http://dx.doi.org/10.46492/ijai/2016.1.2.7.

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7

Handiseni, Maxwell, Young-Ki Jo, and Xin-Gen (Shane) Zhou. "Integration of Brassica Cover Crop with Host Resistance and Azoxystrobin for Management of Rice Sheath Blight." Plant Disease 99, no. 6 (2015): 883–85. http://dx.doi.org/10.1094/pdis-08-14-0845-re.

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Sheath blight caused by Rhizoctonia solani is the most important rice disease that can cause significant losses in grain yield and quality in the southern United States. Current management options for sheath blight primarily consist of fungicides, tolerant cultivars, and cultural practices. These options are not always very effective. Brassica plants have been used for soil fumigation to manage a variety of different soilborne pathogens. In this field study, the efficacy of a Brassica juncea cover crop integrated with use of a tolerant rice cultivar and fungicide application was evaluated in 2011, 2012, and 2013. The B. juncea cover crop significantly lowered sheath blight severity in all 3 years and led to a significantly higher grain yield in 2013 as compared with the fallow control. ‘Presidio’ rice had lower sheath blight severity and higher yield than ‘Cocodrie’ in 2012 and 2013. Fungicide applications with azoxystrobin at the label rate (0.16 kg a.i./ha) or half the label rate (0.08 kg a.i./ha) significantly reduced sheath blight severity in all 3 years, resulting in a yield increase in 2 of the 3 years. B. juncea along with use of a tolerant rice cultivar and half the label rate of azoxystrobin can be an effective approach for management of sheath blight in rice.

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Rodrigues, Fabrício Á., Francisco X. R. Vale, Lawrence E. Datnoff, Anne S. Prabhu, and Gaspar H. Korndörfer. "Effect of Rice Growth Stages and Silicon on Sheath Blight Development." Phytopathology® 93, no. 3 (2003): 256–61. http://dx.doi.org/10.1094/phyto.2003.93.3.256.

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The objective of this study was to determine the effect of silicon (Si) and rice growth stages on tissue susceptibility to sheath blight (Rhizoctonia solani Kühn) under controlled conditions. Rice plants (cv. Rio Formoso) were grown in pots containing low-Si soil amended with Si at 0, 0.48, 0.96, 1.44, and 1.92 g pot-1 and inoculated with R. solani at the following days after emergence: 45 (four-leaf stage), 65 (eight-leaf stage), 85 (tillering), 117 (booting), and 130 (panicle exsertion). For plants inoculated with R. solani at all growth stages, Si concentration in straw increased as rate of Si increased from 0 to 1.92 g pot-1. Concentration of calcium in the straw did not differ among plant growth stages. Although incubation period was not affected by the amount of Si added to the soil, this variable was shorter at booting and panicle exsertion stages. As the rates of Si increased in the soil, the total number of sheath blight lesions on sheaths and total area under the relative lesion extension curve decreased at all plant growth stages. The severity of sheath blight was lower at booting and panicle exsertion stages as the rates of Si increased in the soil. In general, plants grown in Si-nonamended pots and inoculated with R. solani were more vulnerable to infection at all growth stages, but especially at 45 days after emergence. Plant dry weights for inoculated plants increased as the Si rates increased from 0 to 1.92 g pot-1. The greatest dry weight increases occurred for plants inoculated at booting and panicle exsertion stages. Si fertilization is a promising method for controlling sheath blight in areas where soil is Si deficient and when cultivars that exhibit an acceptable level of resistance to sheath blight are not available for commercial use.

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Singh, Pooja, and Babu Subramanian. "Responses of rice to Rhizoctonia solani and its toxic metabolite in relation to expression of Osmyb4 transcription factor." Plant Protection Science 53, No. 4 (2017): 208–15. http://dx.doi.org/10.17221/107/2015-pps.

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The reaction of IR 50, TRY 3, and IR 36 cultivars of rice to R. solani challenge, the causal agent of sheath blight, and its toxic metabolite was studied. Differential response of these cultivars to the pathogen and/or toxin inoculation was observed in detached leaf sheaths and greenhouse-grown plants. The observations were based on disease scoring, electrolyte leakage, and also microscopic views of infection cushions. The Osmyb4 gene expression was studied in the tissues from all these experiments and a correlation between the level of expression and disease response of the varieties was found at least in some experiments. The mechanisms regulated by Osmyb4 might have a lower but significant contribution to the tolerance of rice cultivars to sheath blight.

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Wu, Wei, Xuejie Wan, Farooq Shah, Shah Fahad, and Jianliang Huang. "The Role of Antioxidant Enzymes in Adaptive Responses to Sheath Blight Infestation under Different Fertilization Rates and Hill Densities." Scientific World Journal 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/502134.

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Sheath blight of rice, caused byRhizoctonia solani, is one of the most devastating rice diseases worldwide. No rice cultivar has been found to be completely resistant to this fungus. Identifying antioxidant enzymes activities (activity of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT)) and malondialdehyde content (MDA) responding to sheath blight infestation is imperative to understand the defensive mechanism systems of rice. In the present study, two inoculation methods (toothpick and agar block method) were tested in double-season rice. Toothpick method had greater lesion length than agar block method in late season. A higher MDA content was found under toothpick method compared with agar block method, which led to greater POD and SOD activities. Dense planting caused higher lesion length resulting in a higher MDA content, which also subsequently stimulated higher POD and SOD activity. Sheath blight severity was significantly related to the activity of antioxidant enzyme during both seasons. The present study implies that rice plants possess a system of antioxidant protective enzymes which helps them in adaptation to sheath blight infection stresses. Several agronomic practices, such as rational use of fertilizers and optimum planting density, involved in regulating antioxidant protective enzyme systems can be regarded as promising strategy to suppress the sheath blight development.

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Dissertations / Theses on the topic "Rice sheath blight"

1

Ali, Md Ansar. "Biological variation and chemical control of Rhizoctonia solani causing rice sheath blight disease in Bangladesh." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.480682.

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Lee, Dayoung. "Towards a Multifaceted Understanding of Host Resistance and Pathogenicity in Rice Sheath Blight and Blast Diseases." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555510608170391.

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3

Wee, Richard T. H. "Biological and cultural control strategies for rice blast, Pyricularia oryzae (Cavara), sheath blight, Rhizoctonia solani (Kühn), and tungro virus in Southeast Asia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ51501.pdf.

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Yang, Chia-Jung, and 楊佳融. "Efficacy of Streptomyces padanus PMS-702 for controlling rice sheath blight." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5devu6.

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碩士<br>國立中興大學<br>植物病理學系所<br>106<br>Rice sheath blight (ShB), caused by Rhizoctonia solani Kühn AG1-IA, is one of the destructive diseases in rice fields worldwide. The pathogen infects all growing stages of rice, especially at tillering and boosting stages. In Taiwan, ShB disease causes 14-17% yield loss every year. Although the application of fungicides could control the disease, developing more friendly strategies for the disease management is needed due to the occurrence of fungicide-resistant pathogen and environmental concerns. The purposes of this study were to develop biological control strategies focusing on field sanitation and spraying rice plants with a biocontrol agent for ShB disease management. Streptomyces padanus PMS-702 showed a great antagonistic activity against R. solani isolates RS1-731 and RS1-024 on potato dextrose agar plates. Fungichromin was found to be the major compound produced by S. padanus PMS-702 for inhibiting mycelial growth of R. solani. The results revealed that fungichromin at 3.07 mg/L could inhibit 50% mycelial growth of the pathogen. In addition, fungichromin could also cause leakage of cytoplasm and inhibit the formation of infection structure of R. solani. Fungichromin could reach as high as 802 mg/L when S. padanus PMS-702 was cultured in malt extract-alfalfa seed meal liquid medium for 6 days. Addition of 0.5% (v/v) S. padanus PMS-702 fermented broth into soil decreased the survival rate of the pathogen on rice straws compared to the control. Soil amended with 0.5% (v/v) S. padanus PMS-702 broth and 0.5% (w/v) tea seed pomace resulted in the death of R. solani mycelia in the infested rice straws and inhibited the germination of sclerotia 21 days after treatment. Greenhouse assays revealed that S. padanus PMS-702 cultured in soybean meal-glucose (SMGC-2) medium after mixing with different surfactants could enhance its efficacy for inhibiting the pathogen. Of six surfactants tested, the addition of 2% tea saponin was the most effective in suppressing the pathogen. S. padanus PMS-702 broth fermented in SMGC-2, mixed with 2% tea saponin, diluted 100 fold, and sprayed onto rice plants significantly reduced ShB disease severity ranging from 24.04 to 66.67%. Thus, S. padanus PMS-702 is an effective biocontrol agent. The results demonstrated that the efficacy of S. padanus PMS-702 for controlling rice ShB disease could be significantly improved through culture-based fermentation.

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YU, LAI SU, and 賴素玉. "Effect of Metabolites of Antagonistic Microbes on the Control of Rice Sheath Blight." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/r4d5m4.

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碩士<br>國立嘉義大學<br>生化科技學系研究所<br>107<br>Rice sheath blight is one of the important rice diseases in Taiwan, and is mainly controlled by chemical agents. Antagonistic microorganisms which produce antimicrobial metabolites are widely used for biological control of plant diseases. In this study, the metabolites from Bacillus amyloliquefaciens BACY-1 and Trichoderma virens FT-333 were tested for their antagonistic activities against Rhizoctonia solani and were evaluated for the control of rice sheath blight. Using one-week cultured B. amyloliquefaciens filtrate (BCF), 100% of growth inhibition rate against Rhizoctonia solani were obtained, indicating the metabolite could significantly inhibit the mycelial growth and sclerotial germination of Rhizoctonia solani. While treated at 40°C, 60°C, 80°C and 121°C for 30 min, BCF still had good inhibitory activity against rice sheath blight. Using two-week cultured T. virens filtrate (TCF), 78% and 95.4% of growth inhibition rate on mycelial growth and sclerotial germination of Rhizoctonia solani were also observed. The inhibitory rates of B. amyloliquefaciens BCF on rice sheath blight were 89.2-92.2% by in vitro inoculation. In the greenhouse experiment, it was found that rice plants inoculated with Rhizoctonia solani after BCF pretreatment were not infected seriously. Based on the results of this study, BCF showed a better control effect as compared to TCF. The component and mechanism will be further studied in the futher. Keywords: rice sheath blight, Trichoderma virens, Bacillus amyloliquefaciens, metabolites, biological control

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Chang, Chien-Hua, and 張建華. "Screening of Rice Lines Mutated from Cultivar TNG67 for Resisting Sheath Blight Disease." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/03416566323254172042.

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碩士<br>國立中興大學<br>植物病理學系<br>89<br>Rice (mainly Oryza sativa L.) is the most important food crop recently in the world. However the sheath blight disease is an important disease of rice plants. The pathogen (Rhizoctonia solani Kühn AG-1 IA) with broad host range lets the farmers hardly to control. In 1979, Teng and Hsu suggested that the screening with mutated rice lines is a feasible way. So I requested the cooperation with Dr. Chang-Sheng Wang and Mr. Tung-Hai Tseng (the Department of Agronomy, Taiwan Agricultural Research Institute, Council of Agriculture). Dr. Wang provided the F10 and F14 of mutant lines mutated from rice TNG67 by sodium azide (NaN3). And the total 100 isolates in this study were collected from some counties of Taiwan, and isolate TC96 was classified into a reference isolate. The isolates were identified the classification levels though the observation of morphology, nucleus staining, hyphal fusion, sclerotial sections, and etc. Two isolates are AG-1 IC. Three binucleate isolates were Rhizoctonia fumigata depending on the morphology and measurement of mycelia and sclerotia. For the effectively resistant screening, the virulence analysis of isolates were depending on the response on detached leaf sheaths and plants of rice TNG67 . And then a faster-growing isolate Rs1S-1 and a slower-growing isolate Rs17 with higher virulence were selected for disease-resistant screening by the growth rates at different temperatures. In the first screening, the lines 96 and 286 versus Rs1S-1 and the lines A227, A232, and A242 versus Rs17 were grade 0 (highly resistant). 54.5% versus Rs1S-1 and 30.2% versus Rs17 had the same grade with the original cultivar TNG67. Twenty-eight lines were highly susceptive. The other lines had various disease response grades and morbid states. The results prove that the mutation of rice can change the susceptivity for sheath blight disease and the factors in the resistance or susceptivity of rice may be more than one factor. The highly resistant, resistant, and highly susceptive lines in the first screening were selected as the test lines in the second screening. But unfortunately all test lines in the second screening showed symptoms. The symptoms developed into more than second leaves of plants except line 954 at the 5th day after inoculation. The most possible reason is different climate conditions during these screening. The daily mean temperatures during the first screening were higher than those during the second screening and the total precipitation during the first was less than 1% of that in the second. Every day was sunny during the first except 4 rainy days but the half days during the second were rainy. So the disease response grades of most resistant lines in the first screening were increased in the second screening. Although line 954 were significantly resistant, the symptoms on this line developed suddenly to the higher location of plants at the fifth week after inoculation. But the mean lesions per plant were never more than 2.87. When the infected tiller ratio of other lines increased to 100% after the 7th week, the ratio of line 954 was maintained less than 25%. After comparison with symptoms, tillering numbers, plant shape, plant heights, and frozen sections of leaf sheaths, the mutation of physical structure could be excluded from the factors in the resistance of line 954. It’s possible the inner component or secretion. The problem must be studied more in order to understand the real reasons in the resistance.

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7

Fang, Che-Chun, and 方則淳. "Characterization and comparison of rice sheath blight pathogen Rhizoctonia solani AG-1 IA in Taiwan." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/09144986159523407015.

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碩士<br>國立中興大學<br>植物病理學系所<br>100<br>Rice sheath blight disease caused by Rhizoctonia solani AG-1 IA always occur in the area with high temperature and moisture and has already become endemic in Taiwan. This study analyzed the difference and relationship of the morphology, mycelial growth, sclerotial arrangement, the virulence and infection structure. Rice sheath blight isolates collected in Taiwan showed the growth rate 0.37～1.95 mm / hr, and the average growth rate was 1.5mm/hr; the isolates showed the sclerotial diameter 0.089±0.021-0.244±0.074cm. The colony could be classified with three criteria including sclerotial number, sclerotial arrangement with 6 types, and the colony pigmentation that could be divided into weak, normal, and obvious levels. Sclerotial number produced by isolates ranges between 1.768±0.038-0.078±0.059 number / cm2. After comparing the characteristics of isolates with the environmental condition of collection source, mycelia growth rate shows the positive correlation with annual mean temperature, and sclerotial number shows the positive correlation with annual rainfall. However, the sclerotial diameter shows no correlation with annual rainfall, but with annual mean temperature. Inoculation to cultivar Tainan 11 with isolates was carried out for observation of the virulence and all isolates could cause the disease severity 3-9, with the average lesion height 41.8±0.44-59.5±0.52 cm and the relative lesion height 44.8～66%. The mycelia growth rate and the colony pigmentation show the positive correlation with the lesion height. Surface membrane technique was used to cover the water and rice sheath water extract agar medium for the comparison of infection structure induction, and the latter showed the better effect on colonization promotion, but the infection structure was not obvious and typical. By using the sterilized rice sheath tissue instead of the agar medium, the hyphal aggregation occurred on the location attached with rice sheath tissue, and may penetrated through the fragile part, then attach to the rice tissue surface. The mycelia differentiated following the attachment with tissue surface. The diseased tissue was sampled from the virulence test to Tainan 11 for direct observation of infection structure. All isolates showed the typical infection cushion and some swelling, curving hypha were investigated like the structure lobate appressoria. The area of infection structure ranged between 357.53-1696.97μm2 and the number of infection structure was 35.62～118.98 number / mm2. The area and the number of infection structure show the positive correlation with the disease severity. According to the relatedness analysis, different disease assessment for the resistance could be tested and confirmed the similarity and the trend with the standard rice cultivar evaluation of rice sheath blight resistance currently. And other relatedness of characteristics with environmental factors could be combined with the ecology of rice sheath blight pathogen and the rice crop system, for modifying the strategy and achieve integrated pest management.

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Wang, Po-Hang, and 王柏翰. "Study on Trichoderma as a biocontrol agent to control rice sheath blight caused by Rhizoctonia solani." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/69t7w3.

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碩士<br>國立屏東科技大學<br>植物醫學系所<br>106<br>Rice is one of major food crop in the world. Rice infectious disease are always the key-limited factor on rice production during the growing process. Rice sheath blight disease caused by Rhizoctonia solani is a worldwide disease and make extremely loss of rice yield. The fungicide application is still major measure for controlling rice sheath blight nowadays. Due to environment friendly and reducing fungicide residue, there are a lot of researches which focus on Trichoderma as bio-control material to control rice sheath blight. The purpose of this thesis research is to test and obtain Trichoderma isolates containing the high antagonistic ability to inhibit R. solani, then to be used to control rice sheath blight. 32 isolates of Trichoderma are collected and tested with dual culture and cellophane membrane methods, 4 isolates of AT08, TMS1, TPB2, and NP04 are selected basing on that they can inhibit well the mycelium growth of R. solani. Further, these 4 isolates of Trichoderma are used in rice detached leaf test with applying the conidia spore and liquid culture fluid of Trichoderma on leaves, then inoculated with R. solani inoculum. Through the detached leaf test, two isolates of TMS1 and TPB2 are selected as the candidates of biocontrol agent for controlling rice sheath blight disease. The sawdust spawns of TMS1, TPB2, and TSS isolates are prepared as the control materials to apply on rice tiller to utilize for controlling rice sheath blight on pot-planting and box-planting of rice in greenhouse and in paddy rice field. In all three control tests, all the biocontrol agent application are not shown the control efficiency, when they are investigated on the 7th day after R. solani pathogen inoculation, whereas, the biocontrol agent are shown these three Trichoderma isolates, except one treatment of TPB2 ( 6th, 2nd DBI, DAI ) of 6 treatment on paddy field, can significantly delay the disease lesion development on rice sheath induced by R. solani, when they are investigated on the 14th day after R. solani inoculation.

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Shen, Shih-Mao, and 沈世茂. "Development of the rapid detection methods of rice sheath blight based on PCR and quantitative PCR techniques." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6d6yst.

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碩士<br>國立屏東科技大學<br>植物醫學系所<br>106<br>Sheath blight of rice (ShB) caused by Rhizoctonia solani is a major limiting factor to rice production. This soil-borne fungal pathogen can survive in the soil by sclerotia and mycelia. They are the primary inoculum in rice fields. The primary inoculum has ability to infect the rice sheath from the stem base and multiply in the tissues causing lesion symptoms on sheath. In order to prevent the outbreak of rice sheath blight and to reduce the economic loss of rice yield, it’s critically important to develop a rapid detection method with specific, fast, and on-site advantages for disease management. In this study, the rapid extraction reagent which can be used for on-site detection was developed. The specificity and sensitivity of the novel primers set SMS RS1-F/SMS RS1-R and the reference-primer set GMRS-3/ITS1 were tested. In addition, this study developed the four different extraction protocols for rice sheath infected by R. solani. Moreover, the intraday- and interday-assays were performed for the reproducibility evaluation of the detection methods developed in this study. The results of reproducibility evaluation indicated that all developed detection protocols were suitable to be used for diseased rice sheath. In the future, an on-site will be developed for field soil to make the detection system to be more completely.

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Books on the topic "Rice sheath blight"

1

F. A. M. Nurul Islam. Socio-economic study of rice sheath blight disease. Bangladesh Academy for Rural Development, 2005.

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2

Manibhusan, Rao. Sheath Blight Disease in Rice. Daya Publishing House,India, 1995.

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Book chapters on the topic "Rice sheath blight"

1

Banniza, S., and M. Holderness. "Rice Sheath Blight — Pathogen Biology and Diversity." In Major Fungal Diseases of Rice. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-2157-8_14.

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2

Manibhushanrao, K., and U. I. Baby. "Innovative Approaches in Rice Sheath Blight Management." In Biocontrol Potential and its Exploitation in Sustainable Agriculture. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4209-4_20.

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Gnanamanickam, Samuel S. "Biological Control of Sheath Blight (ShB) of Rice." In Biological Control of Rice Diseases. Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2465-7_6.

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Baby, U. I. "Biocontrol Strategies for the Management of Rice Sheath Blight Disease." In Major Fungal Diseases of Rice. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-2157-8_18.

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Jia, Yulin, Guangjie Liu, Dong-Soo Park, and Yinong Yang. "Inoculation and Scoring Methods for Rice Sheath Blight Disease." In Methods in Molecular Biology. Humana Press, 2012. http://dx.doi.org/10.1007/978-1-62703-194-3_19.

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Shahjahan, A. K. M., M. C. Rush, and D. E. Groth. "Phylloplane Yeasts as Potential Biocontrol Agents for Rice Sheath Blight Disease." In Major Fungal Diseases of Rice. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-2157-8_17.

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Shamim, M. D., Divakar Sharma, Deepa Bisht, et al. "Molecular Tools for Controlling of Sheath Blight Disease of Rice and its Management." In Biotic Stress Management in Rice. Apple Academic Press, 2017. http://dx.doi.org/10.1201/9781315365534-4.

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Pearce, D. A., P. D. Bridge, and D. L. Hawksworth. "Species Concept in Sarocladium, the Causal Agent of Sheath Rot in Rice and Bamboo Blight." In Major Fungal Diseases of Rice. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-2157-8_20.

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Gnanamanickam, S. S., and T. W. Mew. "Biological Control of Rice Diseases (Blast and Sheath Blight) with Bacterial Antagonists: an Alternate Strategy for Disease Management." In Pest Management in Rice. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0775-1_6.

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Savary, S., and T. W. Mew. "Analyzing Crop Losses Due to Rhizoctonia Solani: Rice Sheath Blight, a Case Study." In Rhizoctonia Species: Taxonomy, Molecular Biology, Ecology, Pathology and Disease Control. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-017-2901-7_21.

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Conference papers on the topic "Rice sheath blight"

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Mao, Jianing, Mingfu Gong, and Qinlan Guan. "Novel endophytic bacteria isolated from rice plant against rice sheath blight." In 2018 INTERNATIONAL CONFERENCE ON BIOTECHNOLOGY AND BIOENGINEERING (8TH ICBB). Author(s), 2019. http://dx.doi.org/10.1063/1.5092397.

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Mao, J. N., C. H. Xu, and M. F. Gong. "Screening of Endophytic Bacteria Isolated from Rice Plant Antagonistic Rice Sheath Blight." In 2015 International Conference on Environmental Science and Sustainable Development (ICESSD 2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814723039_0058.

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Zhang, Dongyan, Xingen Zhou, Jian Zhang, Linsheng Huang, and Jinling Zhao. "Developing a small UAV platform to detect sheath blight of rice." In 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS). IEEE, 2017. http://dx.doi.org/10.1109/igarss.2017.8127675.

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"Research imagery and spectral characteristics of rice sheath blight using three portable sensors." In 2015 ASABE International Meeting. American Society of Agricultural and Biological Engineers, 2015. http://dx.doi.org/10.13031/aim.20152190801.

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Zhang, Xuexue, Bin Wang, Peng Liu, Hongshu Che, Xianfeng Zhou, and Jingcheng Zhang. "Influence of Landscape Pattern on Epidemic of Rice Sheath Blight Disease at Regional Scale." In 2018 7th International Conference on Agro-geoinformatics (Agro-geoinformatics). IEEE, 2018. http://dx.doi.org/10.1109/agro-geoinformatics.2018.8476120.

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Hossain, Md Kamal, Kshirod Jena, Md Atiqur Rahman Bhuiyan, and Wickneswari Ratnam. "Development of pyramidal lines with two major QTLs conferring resistance to sheath blight in rice (Oryza sativa L.)." In THE 2014 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2014 Postgraduate Colloquium. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4895298.

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