Research Article

Phenotypic Screening of F3 Rice (Oryza sativa L.) Population Resistance Associated with Sheath Blight Disease

Ashmita Timsina, Uday Kumar Thera and Naveenkumar Ramasamy

  • Page No:  527 - 534
  • Published online: 31 May 2022
  • DOI : HTTPS://DOI.ORG/10.23910/1.2022.2877

  • Abstract

The experiment was conducted during July–December, 2019 in the Agricultural Research Farm Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India. One hundred and twenty-two F3 rice populations from the cross made between IC277332 (susceptible parent)×IC277275 (moderately resistant parent) were evaluated against sheath blight disease under field conditions. The area under disease progress curve (AUDPC) values categorized rice population into four groups viz., moderately resistant (24), moderately susceptible (38), susceptible (40), and highly susceptible (20). A moderate resistance level to the disease was identified during the study in 24 lines (19.6%) with a mean Percentage Disease Index (PDI) of 12.22%−36.6%. Furthermore, 38 individuals showed moderate susceptibility with AUDPC values (1012−1446 day-1). The maximum PDI and AUDPC value were 76.11 and 2325.56, and the minimum PDI and AUDPC values were 22.78 and 622.22, respectively. The principal component (PCA) biplot analysis showed 71.62% and 12.05% variation, respectively. Unweighted Pair Group Method of Arithmetic Means (UPGMA) cluster analysis grouped the 122 individuals into two major clusters, A and B and sub-clusters. These findings indicated that no rice line resistant to sheath blight had been identified.  However, few population lines exhibited moderate resistance, which can be utilized as donor lines to generate sheath blight-resistant rice cultivars. These findings will provide a solid basis for our future breeding and screening activities at the institution.

Keywords :   Biplot-analysis, cluster analysis, IC277275, IC277332, Sheath blight, UPGMA


    Sheath blight (ShB) of rice(Oryza sativa L.)is a major rice disease worldwide, including in India. This disease is caused by Rhizoctonia solani Kuhn (Teleomorph: Thanetophorus cucumeris (Frank) Donk). Rice crops with high attainable yields (Koshariya et al., 2018) are exclusively affected. Yield loss estimate 0−50% in susceptible cultivars has been reported under favorable environmental conditions (Lee and Rush, 1983, Slaton et al., 2003).

    R. solani is one of the destructive pathogens of economic significance, second most prevalent to the blast disease (Molla et al., 2020). The disease usually develops during the peak tillering, and it affects all the plant components above the water-line, including leaf sheaths, upper leaves, internodes, and panicles. In general, the presence of one or more comparatively large, oblong, or irregularly elongated lesions on the leaf sheath aids in the disease diagnosis (Uppala and Zhou, 2018). Under favorable conditions, the infection spreads quickly to the upper plant portions and the neighbouring plants through runner hyphae. Finally, the disease is known as sheath blight because it causes the blighting of leaf sheaths. The diseased plants are usually found in a circular pattern, referred to as a ‘bird’s nest’ locally (Hollier et al., 2009). Brown fluffy mycelium and brown to dark brown sclerotia can be seen freely adhering to lesions in wet circumstances and are easily detached from the plants when they reach maturity (Dath, 1990). The disease can also infect panicles, causing empty or partially filled discolored seed-bearing brownish-black blotches or black to ashy grey patches to appear (Acharya et al., 2004).

    The disease’s control is primarily dependent on chemical fungicides. However, fungicides are neither environmentally friendly nor cost-effective. ShB losses can be managed by developing resistant cultivars. Genetic diversity is a prerequisite of any crop improvement program. Progeny attained from divergent parents shows more significant heterosis and provides a wide range of variability in segregating generation. Till now, only limited resistance has been achieved by transforming rice cultivars with defense genes (Dey et al., 2020). Due to the lack of immune donors in farmed cultivars, breeding for resistance to sheath blight has always been tedious (Bonmann et al., 1992) since the resistance is impacted by agronomic characteristics such as plant height, plant density (Pinson et al., 2005), tillering, and heading date (Pan et al., 1999). Likewise, several studies in rice breeding for sheath blight resistance, and large-scale germplasm screening of wild species for resistant genes, have put a tremendous effort to find resistance lines (Goswami et al., 2019, Pavani et al., 2020). As a result, to date, there is no single report of ShB resistant rice germplasm across the world (Shi et al.,2020). However, a few major resistance genes have been identified from either cultivated rice or wild relatives (Molla et al., 2020) and only a few varieties such as Tetep, ARC 10531, Teqing, Jasmine 85, Tadukan (Yadav et al., 2015, Zarbafi and Ham, 2019) and some of the landraces such as Jarjan, Nepal 555, Nepal 8 (Shiobara et al., 2013) were reported to be moderately resistant. Although extensive attempts have been undertaken worldwide to find disease-resistant germplasm, no resistance cultivars or lines are found against this disease in rice. Plant Breeders utilize genetic diversity knowledge to choose parents for hybridization programs. Knowledge obtained from genetic diversity analysis will also be helpful for developing high-yielding genotypes with sheath blight resistance. Therefore, the study’s objective was to estimate the diversity of 122 F3 rice lines in terms of susceptibility to sheath blight, according to the genetic group and morphological traits under field conditions.


    2.1.  Plant Materials and experimental design

    The seeds of one hundred and twenty-two rice population lines of F3 generation made by the cross of IC277332 (susceptible parent) and IC277275 (moderately resistant parent) was collected from Late Prof. Vineeta Singh, Department of Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, UP, India. All the experiments were conducted during June–December 2019 in the Agricultural Research Farm Institute of Agricultural Sciences, Banaras Hindu University (25º18´N, 83º03´E, 75.7 MSL, Varanasi, Uttar Pradesh, India.

    Healthy seeds were sown alongside susceptible (Pusa Basmati-1) (Shamim et al., 2014) and resistant (Tetep) (Sha and Zhu, 1990) check types in nursery beds prepared by combining soil, sand, and FYM (3:1:1, w/w) Under adequate light and moisture conditions were maintained for the excellent growth of the seedlings. The field experiment was conducted using an alpha lattice design with a plot size of 3×4 m2. Each treatment was replicated three times. Each population line was grown in a 1m long row with 30 cm between rows and 10 cm between the plants. The appropriate agronomic steps were taken to ensure a good crop.

    2.2.  Source of the pathogen culture  

    The highly virulent isolate of Rhizoctonia solani, AG-1 IA (MTCC-12227) procured from the Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi was used in this study.

    2.3.  Artificial inoculation of the pathogen

    The field was irrigated just after transplantation. All the plots were inoculated individually at the tillering stage with immature sclerotia of virulent strain R. solani. After inoculation, the spot was covered by cotton and a few drops of sterilized water were added to keep it moist for a longer duration and for uniform disease infection. Inoculation was performed in the evening hours (Singh et al., 2002b).

    2.4.  Disease evaluation

    The disease scoring was scored using a 0−9 scale (SES) (Anonymous, 2014). The disease severity was calculated at weekly intervals up to the 28th day after inoculation (DAI) (Goswami et al., 2019, Pavani et al., 2020) by measuring the relative lesion height (RLH) in each tiller was calculated as described by Sharma et al. (1990).

    RLH=(Maximum height at which lesion appear/plant height)×100                                                    …………….(1)

    The area under disease progress curve (AUPC) (Shaner and Finney, 1997) and Percentage disease index (PDI) (Wheeler, 1969) were calculated as per the formula

    AUDPC=∑n=1i=1{[(Xi+1+Xi)/2)]×(ti+1– ti)}     ……………(2)

    Where, n=the total number of observations,

    Xi=disease index expressed as a proportion at the ith observation,

    ti=time at the ith observations.

    PDI=(Sum of all ratings ×100)/(Total number of observations × maximum rating scale)    ………………(3)

    2.5.  Data recording on agronomic traits

    Data from the following parameters were collected according to the guidelines described in standard evaluation systems for rice (Anonymous, 2014).

    Plant height (PHT): The average height of 5 plants from the ground level to the tip of the tallest panicle was measured in centimetres (cm) at maturity.

    Panicle length (PNL): The Length of the panicle was measured by a centimetre scale starting from the tip of the neck to the tallest spikelet.

    Tiller number per hill (TNH): The number of tillers was counted from the primary and secondary culms of a hill.

    2.6.  Statistical analysis

    Population distribution, analysis of variance (ANOVA) for sheath blight-related parameters, and morphological trait and Pearson’s correlations analysis were performed using Window stat 7.5 version. The Euclidean cluster analysis based on UPGMA was conducted in the PAST software 4.0 version. Multivariate principal component analysis was executed using XLSTAT 2018 software.


    3.1.  Distribution and grouping of population  

    A wide range of diversification among the 122 F3 rice individuals was examined for various traits (Table 1). Based on the pooled value, simple statistics of all the variables unveiled that plant height of the entries of the plant population ranged from 61.70 cm−134.3 cm with a mean height of 89.88 cm and a standard deviation of 15.27. Skewness and Kurtosis of plant height were analyzed as 0.62 and 0.08, respectively. Panicle length varied from 12.70 cm−23.90 cm with an average of 17.76 cm and a standard deviation of 2.03. Skewness and Kurtosis of panicle length were -0.07 and 0.28, respectively. The number of tillers per plant ranged from 3.9 tillers plant-1 to 9.8 tillers plant-1. Average tillers per plant were 5.82, and the standard deviation was 1.01, while skewness and kurtosis of the number of tillers were 0.74 and 1.21, respectively.

    In addition, the maximum and minimum lesion length after seven days of inoculation was 66.67 and 7.78, respectively, with an average value of 26.91 and a standard deviation of 12.68. Skewness and Kurtosis at seven days were 0.62 and -0.08, respectively. Similarly, the maximum and minimum lesion length after 14 days of inoculation was 66.67 and 11.11, respectively, while after 21 days of inoculation was 88.89 and 24.44, respectively. The average value at 14 days was 33.49 and for 21 days was 57.07. Standard deviation, skewness, and kurtosis on the 14th day were analysed as 13.25, 0.40 and -0.63, respectively. Also, standard deviation, skewness, and kurtosis of 21st days were 15.02, -0.02, and -0.79, respectively. The maximum and minimum lesion length after 28 days of inoculation was 100 and 42.22, respectively, with an average value of 77.93 and a standard deviation of 13.05. Skewness was analysed as -0.47, while Kurtosis was -0.31 on the 28th day of inoculation.

    The maximum PDI and AUDPC value were 76.11 and 2325.56, and the minimum PDI and AUDPC values were 22.78 and 622.22, respectively. The average value of PDI was 48.85% and of AUDPC was 1411.96. Standard deviation, skewness, and kurtosis of PDI were 12.59, 0.11, and -0.76, respectively. Also, standard deviation, skewness, and kurtosis of AUDPC were 407.30, 0.19, and -0.78, respectively. Analysis of variance (ANOVA) revealed the variation in the population for different traits were depicted in Table 2.

    Among the different traits studied, PDI of 7th and 14th day was non-significant at the genotypic level, whereas in replication, panicle length was non-significant, rest of the traits were significant at (p>0.05%). Principal component biplot analysis was performed to determine the relationship among the traits responsible for sheath blight resistance. The PC1 and PC2 elucidated around 71.62% and 12.05% of the variation, respectively, wherein PC1 and PC2 accounted for 83.67% of the total variability (Figure. 1).

    The analysis indicated that the traits viz., mean PDI strong positively correlated with PDI at 7th, 14th, 21st, 28th day, and AUDPC. While tiller number plant-1 has a less strong correlation to plant height and panicle length.

    However, PDI at 7th, 14th, 21st, 28th, mean PDI and AUDPC have formed a separate group (highly correlated). Similarly, panicle length and plant height have formed another group (positively correlated). The position and perpendicular projection of F3 population positions onto variable vector under field condition identify susceptible lines showed increase in PDI at 7th, 14th, 21st, 28th, mean PDI and AUDPC values. On the contrary, moderate resistant lines moved to quadrant 4 (opposite to quadrant 3), exhibiting increases in plant height and panicle length of plants. However, tiller number had a non-significant correlation with plant height and panicle length.

    The estimates of Pearson’s correlation coefficients among plant height, tillers per plant, PDI at 7th, 14th, 21st, and 28th day, mean PDI and AUDPC along with significance based on the p-value. The trait PDI on the 7th day was found to be positively correlated with PDI on the 14th day (0.971), mean PDI (0.939), and AUDPC (0.950). PDI on the 14th day is positively correlated with mean PDI (0.955) and AUDPC (0.966). At the same time, PDI on the 21st day was positively correlated with mean PDI (0.946) and AUDPC (0.950). At the same time, plant height is negatively correlated with mean PDI (-0.758) and PDI on the 14th day (-0.751). However, tiller number showed no correlation with plant height and panicle length (Table 3).

    The Unweighted Pair Group Method of Arithmetic Means (UPGMA) cluster analysis led to the grouping of the 122 individuals into 2 main clusters and sub-clusters. The mapping panel is divided into 2 main clusters I and II (Figure 2). Clusters I can again be divided into IA consisting of 15 highly susceptible populations and IB consisting of 23 population lines belonging to 19 susceptible and 4 highly susceptible. Cluster II is further sub-divided into IIA and IIB. Subcluster IIA is again sub-divided into IIA1 and IIA2, consisting of 23 and 33 population lines designated as susceptible and moderately susceptible, respectively. Similarly, subcluster IIB is again sub-divided into IIB1 and IIB2, with 12 and 16 lines depicted as moderately resistant and moderately susceptible, respectively.

    3.2.  Screening of rice F3 population against sheath blight disease resistance under field conditions

    Crop variety/cultivar assessment against various crop diseases is critical (Mew et al., 2004), and a continuous process is necessary not only for identifying the source of resistance genes or QTLs but also for detecting the occurrence of virulence pathotypes in comparison to particular crop diseases (Singh et al., 2016). However, despite screening hundreds of rice germplasms, including improved accessions, wild types, landraces, and mapping populations, no source of ShB resistance has been identified (Shiobara et al., 2013, Shamim et al., 2014, Goswami et al., 2019, Bal et al., 2020). In the present investigation, a total of 122 F3 rice population lines derived from the cross between IC 277332 (susceptible) and IC 277275 (moderately resistant) were screened under field conditions for rice sheath blight resistance.Meanwhile, similar results were obtained when 108 germplasms were screened under both natural and artificially inoculated conditions by Chandra et al. (2016). Dong et al. (2012) investigated the F2 population of rice consisting of 286 individuals and found a deep-water rice variety with good resistance to sheath blight which was produced by crossing between ‘HH1B’ and ‘RSB03’. Based on the area under the disease progress curve (AUDPC), all the rice individuals were categorized into four categories viz., moderately resistant (MR: AUDPC=622.2−1011.1), moderately susceptible (MS: AUDPC=1012−1446), susceptible (S: AUDPC=1447−1866) and highly susceptible (HS: AUDPC=1867−2326) (Table 4).

    The majority of the F3 rice population was conferred as susceptible when compared with susceptible control cultivar (Pusa Basmati-1). Moreover, Praveen et al. (2018) in their investigation, performed screening on 57 germplasms of rice through artificial inoculation under field conditions and found most of the germplasms were highly susceptible, except Orgoja, which was resistant and Gopal Ghosh that was moderately resistant. Our present investigation revealed 24 lines (19.6%) (RST1-14, RST1-19, RST1-69, RST1-70, RST1-79, RST1-80, RST1-81, RST1-83, RST1-84, RST1-90, RST1-92, RST1-96, RST1-97, RST1-98, RST1-99, RST1-100, RST1-108, RST1-111, RST1-112, RST1-115, RST1-116, RST1-117, RST1-120 and Tetep) were moderately resistant with a mean percent disease index (PDI) between 22.7−36.00. A set of 38 lines (RST1-4, RST1-12, RST1-17, RST1-21, RST1-23, RST1-24, RST1-28, RST1-32, RST1-54, RST1-59, RST1-62, RST1-68, RST1-71, RST1-72, RST1-73, RST1-74, RST1-75, RST1-76, RST1-77, RST1-78, RST1-86, RST1-87, RST1-88, RST1-89, RST1-91, RST1-93, RST1-94, RST1-101, RST1-104, RST1-105, RST1-106, RST1-107, RST1-109, RST1-110, RST1-113, RST1-114, RST1-118, RST1-119) exhibited moderate susceptibility with a mean per cent disease index (PDI=36.30−49.50). Moreover, our present experiment, revealed that a relatively higher set of 40 (32.7%) individuals (RST1-1, RST1-5, RST1-6, RST1-7, RST1-8, RST1-9, RST1-15, RST1-16, RST1-18, RST1-20, RST1-22, RST1-25, RST1-26, RST1-30, RST1-31, RST1-33, RST1-34, RST1-36, RST1-38, RST1-39, RST1-40, RST1-41, RST1-43, RST1-45, RST1-47, RST1-55, RST1-56, RST1-57, RST1-58, RST1-61, RST1-60, RST1-64, RST1-65, RST1-66, RST1-67, RST1-82, RST1-85, RST1-95, RST1-102, RST1-103) showed susceptible reaction with a mean % disease index (PDI=49.7−62.5). Of the remaining population, 20 (16.5%) lines (RST1-2, RST1-3, RST1-10, RST1-11, RST1-13, RST1-27, RST1-29, RST1-35, RST1-37, RST1-42, RST1-44, RST1-46, RST1-48, RST1-49, RST1-50, RST1-51, RST1-52, RST1-53, RST1-63, PB-1) were conferred as highly susceptible when compared to the control (Tetep). Our results agreed with Pavani and Singh et al. (2018) who screened 196 genotypes in open field conditions over the seasons and reported that the majority of genotypes were found to be moderately susceptible compared to resistant check Tetep.

    Despite screening thousands of rice germplasms, only a few rice cultivars offer resistance to ShB that have been reported, viz., Teqing (Pinson et al., 2005), Jasmine 85 (Liu et al.,2009), Tetep (Channamallikarjuna et al., 2010), Pecos (Sharma et al., 2009), Sabitri (Chaudhary, 2016). Moreover, a high level of resistance has been reported in rice lines viz., YSBR 1 in China (Zuo et al., 2009), BPL 7−12 and BML 27−1 in India (Dubey et al., 2014a, b) and Pecos in Malaysia and USA (Sharma et al., 2009, Willocquet et al., 2011). Moderate to a good level of resistance has been reported from different wild rice accessions like O. nivara, O. barthi, O. meridionalis, O. officinalis, O. rufipogon, and O. latifolia (Ram et al., 2008, Prasad and Eizanga, 2008). Moreover, our results agree with the previous reports of several studies (Nadarajah et al., 2014, Hossain et al., 2014, Tejaswini et al., 2017, Pavani et al., 2020).


    Rice germplasms lacked the complete resistance against sheath blight. The goal of our research was to look for resistance in an F3 population line resulting from a cross between IC277332 and IC277275. The plants were in turn recorded with certain agronomic traits to study their correlation with PDI. Out of 122 rice population lines, twenty-four moderate resistant lines were showed fewer AUDPC values than Tetep (R-check). None of the rice lines was completely resistant to sheath blight disease.


    The authors acknowledge the inputs and discussions from other researchers of many related fields and the seed material of Rice from Late Dr. Vineta Singh.

  • Reference
  • Acharya, S., Basu, A., Sarkar, M.K., Sengupta, P.K., 2004. Seed-borne infection in sheath blight of rice and its effect on seedling health. Indian Phytopathology 57(1), 82−83.

    Anees, M., Tronsmo, A., Edel-Hermann, V., Hjeljord, L.G., Heraud, C., Steinberg, C., 2010. Characterization of field isolates of Trichoderma antagonistic against Rhizoctonia solani. Fungal Biology 114(9), 691−701.

    Anonymous, 2014. Standard evaluation system for rice: Reference guide. International Rice Research Institute, Los Banos. Available at SES_Final_for ( Accessed on 3rd December 2020.

    Bal, A., Samal, P., Chakraborti, M., Mukherjee, A.K., Ray, S., Molla, K.A., Behera, L., Samal, R., Sarangi, S., Sahoo, P., Behera, M., 2020.  Stable quantitative trait locus (QTL) for sheath blight resistance from rice cultivarCR 1014. Euphytica 216(11), 1−19. DOI

    Bonmann, J.M., Khush, G.S., Nelson, R.J., 1992. Breeding for resistance to pests. Annual Review of Phytopathology 30, 507–523.

    Chandra, S., Singh, H.K., Kumar, P., Yadav, N., 2016. Screening of rice (Oryza sativa L.) genotypes for sheath blight (Rhizoctonia solani) in changing climate scenario. Journal of Agri Search 3(2), 130–132.

    Chaudhary, B., 2016. Evaluating sheath blight resistance in rice using detached tiller and field screening method. Journal of Nepal Agricultural Research Council 1, 1−8. DOI 

    Dey, S., Badri, J., Prakasam, V., Bhadana, V.P., Eswari, K.B., Laha, G.S., Priyanka, C., Aku, R., Ram, T., 2016. Identification and agro-morphological characterization of rice genotypes resistant to sheath blight. Australasian Plant Pathology 45, 145−153.

    Dong, F., Chen, L., Guohui, Y., Liu, Y., Qiaojun, L., Mei, H., Xiong, L., Li, M., Xu, X., Luo, L., 2011. QTL mapping of sheath blight resistance in a deep-water rice cultivar. Euphytica 180, 209−218. DOI 10.1007/s10681-011-0366-5.

    Dubey, A.K., Pandian, R.T.P., Rajashekara, H., Khanna, A., Ellur, R.K., Sharma, P., Kumar, A., Singh, A.K., Gopalakrishnan, S., Rathour Ganeshamoorthi, P., Dubey, S.C., 2014. Morphological and pathogenic variability of R. solani isolates associated with wet root rot of chickpea in India. Legume Research 38, 389–395.

    Goswami, S., Singh, V., Kashyap, P., Singh, P.K., 2019. Morphological characterization and screening for sheath blight resistance using Indian isolates of Rhizoctonia solani AG1IA. Indian Phytopathology 72, 1−18. DOI 10.1007/s42360-018-0103-2.

    Hollier, C.A., Rush, M.C., Groth, D.E., 2009. Sheath blight of rice Thanetophorus cucumeris (A.B. Frank) Donk Rhizoctonia solani Kuhn. Louisiana Plant Pathology Disease Identification and Management Series Publication 3123 (On-line only).

    Hossain, M.K., Tze, O.S., Nadarajah, K., Jena, K., Bhuiyan, M.A.R., Ratnam, W., 2014. Identification and validation of sheath blight resistance in rice (Oryza sativa L.) cultivars against Rhizoctonia solani. Canadian Journal of Plant Pathology 36, 482–490.

    Koshariya, A., Kumar, I., Pradhan, A., Shinde, U., Verulkar, S., Kotasthane, A., 2018. Identification of quantitative trait loci (QTL) associated with sheath blight tolerance in rice. Indian Journal of Genetics and Plant Breeding 78, 196. DOI 10.5958/0975-6906.2018.00025.1.

    Lee, F.N., Rush, M.C., 1983. Rice sheath blight: a major rice disease. Plant Disease 67, 829−832.

    Mew, T.W., Leung, H., Savary, S., Vera Cruz, C.M., Leach, J.E., 2004. Looking ahead in rice disease research and management. Critical Reviews in Plant Sciences 23(2), 103−127. DOI 10.1080/07352680490433231

    Molla, K.A., Karmakar, S., Molla, J., Bajaj, P., Varshney, R.K., Datta, S. K., Datta, K., 2020. Understanding sheath blight resistance in rice: the road behind and the road ahead. Plant Biotechnology Journal18(4), 895–915. DOI 10.1111/pbi.13312.

    Nadarajah, K., Omar, N.S., Rosli, M., Tze, O.S., 2014. Molecular characterization and screening for sheath blight resistance using Malaysian isolates of Rhizoctonia solani. BioMed Research International, 2014. Article ID 434257. DOI 10.1155/2014/434257.

    Pan, X.B., Zou, J.H., Chen, Z.X., Lu, J.F., Yu, H.X., Li, H.T., Wang, Z.B., Pan, X.Y., Rush, M.C., Zhu, L.H., 1999. Tagging major quantitative trait loci for sheath blight resistance in a rice variety, Jasmine 85. China Science Bull 44, 1783–1789.

    Pavani, S.L., Singh, V., Goswami, S., Singh, P.K., 2020. Screening for novel rice sheath blight-resistant germplasm and their biochemical characterization. Indian Phytopathology 73, 1−6. DOI 10.1007/s42360-020-00284-1.

    Pavani, S.L., Singh, V., 2018. Assessment of virulence diversity of rhizoctonia solani causing sheath blight disease in rice from Eastern UP. Current Journal of Applied Science and Technology 26(6), 1−10.

    Pinson, S.R.M., Capdevielle, F.M., Oard, J.H., 2005. Confirming QTLs and finding additional loci conditioning sheath blight resistance in rice using recombinant inbred lines. Crop Science 45, 503–510.

    Prasad, B., Eizenga, G.C., 2008. Rice sheath blight disease resistance identified in Oryza spp. accessions. Plant Disease 92, 1503−1509.

    Praveen, S., Ali, M.A., Ali, M.A., 2018. Screening rice germplasm against sheath blight disease of rice and its integrated management in Bangladesh. Bangladesh Rice Journal 22(2), 1−12. DOI  

    Premalatha Dath, A., 1990. Sheath blight of rice and its management. associated publishing company. Shidipura, Karol Bagh, New Delhi, 129.

    Ram, T., Majumdar, N.D., Laha, G.S., Ansari, M.M., Kar, C.S., Mishra, B., 2008. Identification of donors for sheath blight resistance in wild rice. Indian Journal of Genetics 68, 317−319.

    Sha, X.Y., Zhu, L.H., 1990. Resistance of some rice varieties to sheath blight (ShB). International Rice Research Newsletter 15, 7–8.

    Shamim, M.D., Kumar, D., Srivastava, D., Pandey, P., Singh, K.N., 2014. Evaluation of major cereal crops for resistance against Rhizoctonia solani under greenhouse and field conditions. Indian Phytopathology 67(1), 2−6.

    Shaner, G., Finney, R.E., 1977. The effect of nitrogen fertilization on the expression of slow-mildewing resistance in ‘Knox’ wheat. Phytopathology 67, 1051–1056.

    Sharma, N.R., Teng, P.S, Oliver, F.M., 1990. Comparisons of assessment methods for rice sheath blight disease. Philippine Phytopathology 26, 20–24.

    Sharma, A., McClung, A.M., Pinson, S.R.M., Kepiro, J.L., Shank, A.R., Tabien, R.E., Fjellstrom, R., 2009. Genetic mapping of sheath blight resistance QTL within tropical japonica rice cultivars. Crop Science 49, 256–264.

    Shiobara, F., Ozaki, H., Sato, H., Kojima, Y., Masahiro, M., 2013. Mapping and validation of QTLs for rice sheath blight resistance. Breeding Science 63, 301–308.

    Singh, R., Sunder, S., Kumar, P., 2016. Sheath blight of rice: current status and perspectives. Indian Phytopathology 69(4), 340−351.

    Singh, V., Singh, U.S., Singh, K.P., Singh, M., Kumar, A., 2002b. Genetic diversity of Rhizoctonia solani by morphological characteristics, pathogenicity, anastomosis behaviour and RAPD fingerprinting. Journal of Mycology and Plant Pathology 32(3), 332–344

    Slaton, N.A., Cartwright, R.D., Meng, J., Gbur, E.E. Jr., Normann, R.J., 2003. Sheath blight severity and rice yield as affected by nitrogen rate, application method, and fungicide. Agronomy Journal 95, 1489–1496

    Tejaswini, K.L.Y., Krishnam, R., Kumar, R., Mohammad, L.A., Ramakumar, P.V., Sayanarayana, P.V., Srinivas, M., 2016. Screening of rice F5 families for sheath blight and bacterial leaf blight. Journal of Rice Research 9(1), 4−10.

    Uppala, L., Zhou, X., 2018. Rice sheath blight. Plant Health Instructor. DOI 10.1094/PHI-I-2018-0403-01.

    Wheeler, B.E.J., 1969. An introduction to plant diseases. John Wiley and Sons Limited, London, 301.

    Willocquet, L., Lore, J. S., Srinivasachary, S., Savary, S., 2011. Quantification of the components of resistance to rice sheath blight using a detached tiller test under controlled conditions. Plant Disease 95, 1507−1515

    Zuo, S.M., Wang, Z.B., Chen, X.J., Gu, F., Zhanf, Y.F., Chen, Z.X., Pan, X.B., Pan, C.H., 2009. Evaluation of resistance of a novel rice line YSBR1 to sheath blight. Acta Agronomica Sinica 35, 608−614.


Timsina A, Thera UK, Ramasamy N. Phenotypic Screening of F3 Rice (Oryza sativa L.) Population Resistance Associated with Sheath Blight Disease IJBSM [Internet]. 31May.2022[cited 8Feb.2022];13(1):527-534. Available from:

People also read

Review Article

Homegarden Agroforestry in Ethiopia- A Review 

Biruk Kefale

Agroforestry, home garden, compositions

Published Online : 18 Aug 2020

Research Article

Evaluation of Dolichos Genotypes (Dolichos lablab L.) under Northern Telangana Zone

Preetham R., Suchitra V., Saidaiah P. and Nithish A.

Dolichos bean, vegetative, floral characters, yield attributes, yield

Published Online : 02 Dec 2020