Role of Seed Priming and Plant Growth-Promoting Rhizobacteria in Modulating Crops’ Responses to Salinity Stress

  • Abdul Majeed
  • Zahir Muhammad
  • Rehmanullah


Salinity, a leading problem in agriculture, has been regarded as a major limiting factor in growth performance of crops with substantial yield losses. Although different crops respond differently to salt stress, nearly all physiological, biochemical, developmental, and growth processes of all crops are affected by salinity to some extent. Major effects of salinity on crops include reduced uptake of water and nutrient, the altered rate of photosynthesis, respiration and transpiration, stomatal conductance, and ion toxicity, which collectively reduce their growth and yield potentials. The problem of salinity shows its adversities in those areas where evaporation rate exceed the precipitation rate. Some other factors corresponding to salinity emergence in agricultural lands include natural weathering, nonsystemic irrigation practices, and intensification of agriculture. Development of salt tolerant crops through applied biotechnology seems an ideal approach; however, research in that domain is a novice quest. One of the best sustainable approaches in salt stress management is the employment of pre-sowing seed priming techniques involving different priming agents because they do not pose any ecological or environmental problems. Similarly, several strains of plant growth-promoting rhizobacteria (PGPR) have the abilities to recover soil quality degraded by salinity and directly or indirectly improve crops’ growth in a saline environment. In this chapter, we review the effects of salinity on major cultivated crops and the potential role of seed priming and PGPR in helping them to adjust to salinity stress.


Salinity tolerance Electrical conductivity Ion exchange Physiological stress Rhizosphere Yield 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Abdul Majeed
    • 1
  • Zahir Muhammad
    • 2
  • Rehmanullah
    • 2
  1. 1.Department of BotanyGovernment Degree College PabbiNowsheraPakistan
  2. 2.Department of BotanyUniversity of PeshawarPeshawarPakistan

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