Characterization and efficiency assessment of PGPR for enhancement of rice (Oryza sativa L.) yield

Abid Ilyas Dar, Fahad Saleem, Mumtaz Ahmad, Muhammad Tariq, Anwar Khan, Arfan Ali, Bushra Tabassum, Qurban Ali, Ghazanfar Ali Khan, Bushra Rashid, Idrees Ahmad Nasir, Tayyab Husnain

Abstract


Background: Plant growth promoting rhizobacteria (PGPR) play an important role in phosphorous solublization, nutrient uptake and crop productivity. A variety of PGPR and their combinations were supplemented to rice crop for evaluation of their effects on plant height, filled grain per panicle, tillers per plant, 1000 grain weight, panicle length and yield per acre.    

Methods: Roots of sugarcane plants and their adhering soil samples were used as an isolation source for PGPR. The nursery plant roots of local rice varieties i.e. Super Basmati and Basmati-515 were inoculated with isolated PGPR formulation. Data was recorded and statistically analyzed to determine analysis of variance, genetic correlation, path coefficient and principle component. 

Results: 5 out of 11 bacterial strains produced high indole acetic acid (IAA). Other 6 were either average or low producers of the acid. The strains selected for maximum amount of phosphorous solublization were CEMB-22 (Klebsiella sp.) and CEMB-15 (Burkholderia sp.) with best IAA production. It was found that higher genetic advance, heritability, genotypic and phenotypic correlation have positive direct effects on yield properties of rice.

Conclusion: Yield of rice can be enhanced by the application of CEMB-22+CEMB-15 PGPR in combined formulation.

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References


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DOI: http://dx.doi.org/10.62940/als.v2i1.100

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