Germplasm screening for salinity tolerance at germination and seedling stages in wheat
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The Self-directed Innovation Fund of Agricultural Science and Technology in Jiangsu Province, China (Grant No. CX [10]127);Special Foundation for State Science and Technology Basic Research(2007FY110500-06)

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    Abstract:

    【Objective】 The study aims at the work of developing better wheat varieties with salinity tolerance and searching for suitable NaCl concentration for screening salinity tolerance.【Method】293 accessions of wheat germplasm were treated with 1.5%NaCl at germination stage to get the relative salt injury rate; 24 varieties whose relative salt injury rate below 40% were treated with different NaCl concentration at seedling stage to get the relative growth rate.【Result】The relative salt injury rate indicated 16 varieties were high salt-tolerant lines and 42 varieties were salt-tolerant lines; 1.0% NaCl was the suitable concentration for wheat salt-tolerance at seedling stage, Marmin-Minhardi譎44-Minturki and Huashupu were salt-tolerant lines at both germination and seeding stages;【Conclusion】The salinity tolerance of different original germplasm were bred and local varieties > introduced varieties > advanced lines; Marmin-Minhardi譎44-Minturki and Huashupu were newly evaluated germplasm with salinity tolerance and may be useful in wheat improvement for salinity tolerance.

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History
  • Received:October 15,2012
  • Revised:January 17,2013
  • Adopted:June 07,2013
  • Online: June 07,2013
  • Published:
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