Effect of Salicylic Acid and Pseudomonas fluorescens on Growth and Yield of Paddy Ir-50

Abstract

Rice (Oryza sativa L.) is the most important staple food for over two billion people in Asia and for hundreds of million in Africa and Latin America. To feed the ever increasing population of these regions the world's annual rice production must be increased from the present 560 to 750 million tones by 2020. However, biocontrol of sheath blight disease management has, so far, proved to be inefficient in bringing down the disease incidence below economic threshold level (ETL). Hence, the application of systemic resistance inducing chemicals along with biocontrol agents would be the suitable alternative strategy to improve the sheath blight disease management in rice. In this present study, the effect of salicylic acid and Pseudomonas fluorescens on growth and yield of Paddy IR-50 was investigated. Among the various treatments tested, maximum growth and yield was observed in the treatmentT (Pseudomonas fluorescens seed application + Salicylic acid applied on 6 30 day) and the least parameters were recorded in the Control treatment (T ). th 1

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