Use of nitrogen and PGPRs for management of spot blotch in barley (Hordeum vulgare)

Abstract views: 148 / PDF downloads: 136


  • MOHAMMAD AMIR Lovely Professional University, Phagwara, Punjab 144 402, India
  • J P SRIVASTAVA Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh
  • ANAM KHAN Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, Uttar Pradesh
  • MANEESH KUMAR Sardar Bhagat Singh Degree College, Goluwala, Rajasthan
  • RISHABH KUMAR SINGH Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, Uttar Pradesh
  • F A KHAN Sher-e-Kashmir University of Agricultural Sciences and Technology Srinagar, Jammu and Kashmir


Azotobacter, Barley, Management, Spot bloch


Spot blotch disease of barley caused by Bipolaris sorokiniana is prevalent everywhere but causes significant yield losses under warm and humid climates. Use of fungicides is a common practice to control the spot blotch but at the same time it can pose a risk to environment as well as humans consuming such products. A field experiment was conducted to minimize the incidence of spot blotch in barley using different nitrogen levels and PGPRs as seed treatment. Application of lower nitrogen dose (50% of RDF – N1) and seed treatment with Azotobacter + PSB – B3) either individually or in combination significantly reduced the severity of spot blotch and increased the yield of barley. As such it may be concluded that spot blotch disease of barley can be managed by use of lower dose of nitrogen along with seed treatment with Azotobacter + PSB and use of fungicide may be avoided.


Download data is not yet available.

Author Biography

  • MOHAMMAD AMIR, Lovely Professional University, Phagwara, Punjab 144 402, India



Abdul Baki A A and Anderson J D. 1973. Vigour determination in soybean by multiple criteria. Crop Science 13(6): 630–33. DOI:

Al-Sadi A M. 2016. Variation in resistance to spot blotch and the aggressiveness of Bipolaris sorokiniana on barley and wheat cultivars. Journal of Plant Pathology 98(1): 97–103.

Arabi M I E, Al-Daoude A, Shoaib A and Jawhar M. 2011. Transcriptional interactions during barley susceptible genotype infection with Cochliobolus sativus. Russian Journal of Genetics 47(7): 879–83. DOI:

Bacmaga M, Wyszkowska J and Kucharski J. 2016. The effect of the Falcon 460 EC fungicide on soil microbial communities, enzyme activities and plant growth. Ecotoxicology 25(8): 1575–87 DOI:

Biswas S K, Shankar U, Kumar S, Kumar A, Kumar V and Lal K. 2015. Impact of bio-fertilizers for the management of spot blotch disease and growth and yield contributing parameters of wheat. Journal of Pure and Applied Microbiology 1(4): 3025–31.

Gupta P K, Chand R, Vasistha N K, Pandey S P, Kumar U, Mishra V K and Joshi A K. 2018. Spot blotch disease of wheat: The current status of research on genetics and breeding. Plant Pathology 67(3): 508–31. DOI:

Harding H. 2011. Effect of Bipolaris sorokiniana on germination and seedling survival of varieties or lines of 14 Triticum species. Canadian Journal of Botany 49(2): 281–87. DOI:

Kumar J, Singh G and Nagarajan S A. 1998. Field scale for leaf blight recording. Indian Wheat Newsletter 5(2): 3–4.

Kumar S, Kumar N, Prajapati S and Maurya S. 2020. Review on spot blotch of wheat: An emerging threat to wheat basket in changing climate. Journal of Pharmacognosy and Phytochemistry 9(2): 1985–97.

Neupane A C, Sharma R C, Duveiller E and Shrestha S M. 2010. Sources of Cochliobolus sativus inoculum causing spot blotch under warm wheat growing conditions in South Asia. Cereal Research Communication 38: 541–49. DOI:

Sharma S. 2020. Impacts of nitrogen on plant disease severity and plant defence mechanism. Fundamental and Applied Agriculture 5(3): 303–14.

Singh D P and Kumar P. 2005. Method of scoring leaf blight of wheat caused by Bipolaris sorokiniana (Sacc.) Shoem. on top leaves at adult plant stage. Integrated Plant Disease Management, pp. 289–54. Sharma R C and Sharma J N (Eds.), Scientific Publishers, Jodhpur, India.

Singh D P and Kumar P. 2008. Role of spot blotch (Bipolaris sorokiniana) in deteriorating seed quality, its management in different wheat genotypes using fungicidal seed treatment. Indian Phytopathology 61(1): 49–54.

Singh R N, Singh A K and Singh S P. 2009. Prevalence and management of spot blotch (Cochliobolus sativus) of barley (Hordeum vulgare L.) in eastern India. Proceedings of the National Academy of Sciences India. Section B - Biological Sciences 79(1): 65–69.









How to Cite

AMIR, M., SRIVASTAVA, J. P., KHAN, A., KUMAR, M., SINGH, R. K., & KHAN, F. A. (2023). Use of nitrogen and PGPRs for management of spot blotch in barley (Hordeum vulgare). The Indian Journal of Agricultural Sciences, 93(4), 443–446.