Abstract Detail



Symbioses: Plant, Animal, and Microbe Interactions

Ilyas, Noshin [1], Roomina, Mazhar [1].

Soil and its Microorganisms: A case study for Sustainable Agriculture under Pakistan’s Climatic Change Conditions.

Background: Pakistan is 7th most vulnerable country to climate change.There is dire need to manage the risks to sustainable agriculture in an environment threatened by climate change. Land is a limited resource and stresses such as, drought, salinity, and heavy metal are decreasing agricultural productivity day by day. Building our understanding of the interdependence of micro-organism communities, soil nutrient status and plant health will be important for understanding climatic effects on agriculture. Aim: To check the potential of Plant growth Promoting Rhizobacteria and various modified biomasses as effective soil amendment techniques for improving wheat crop growth under various abiotic stresses. Methodology: Experiments were conducted to isolate and characterize stress tolerant Plant growth Promoting Rhizobacteria, and to check their potential to mitigate the deleterious effects of stress when inoculated. Plant biomasses were modified as compost, biochar, and bio-organic fertilizer and were used as soil amendments techniques for their ability to help the plants to combat stresses. Various morphological, physiological, biochemical, growth and productivity parameters were studied. Results: Microbial strains were isolated from the stress (drought, salinity and heavy metal) effected region. The identification of isolated microbial strains was carried out by physiochemical and 16s rDNA sequencing and phylogenetic analysis. Stress tolerance and different plant growth-promoting traits of isolated strains were evaluated under normal as well as in stress condition. Abiotic stresses adversely affects morphology, physiology, and biochemistry of the wheat plant. Inoculation of seeds with PGPR along with compost, biochar and bio-organic fertilizer improved all growth and productivity parameters, increased nutrient status and improved osmolyte production and hence helped the survival and growth  under stress conditions. Conclusion: It is concluded from this research that efficient PGPR strains in combination with compost, biochar and bio-organic fertilizer considerably reduce the effect of drought, salinity and heavy metal stress on wheat crop.


1 - PMAS Arid Agriculture University Rawalpinidi, Department of Botany, Rawalpinidi, Punjab, 46300, PAK

Keywords:
PGPR
Climate change.

Presentation Type: Oral Paper
Number:
Abstract ID:79
Candidate for Awards:None


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