[Objective] Wheat is the major grain crop in China. Salinization as an abi- otic stress has become an important limiting factor of wheat output. It has great sig- nificance to ensure the food security by improved the ...[Objective] Wheat is the major grain crop in China. Salinization as an abi- otic stress has become an important limiting factor of wheat output. It has great sig- nificance to ensure the food security by improved the production of wheat in salin- ization of soil. [Method] This research is reference to previous study to be estab- lished by germination rate and seeding plants changes under salt stress to deter- mine the ability of salt tolerance of different wheat varieties. Under 300 mM NaCI to count germination rate and measuring the height, root length and root number of seeding in 200 mM and 400 mM NaCI to evaluated wheat varieties resistant to salt. [Result] Under this method, we found 3 grade-1 salt-tolerant varieties, 3 grade-2 salt-tolerant varieties, 5 grade-3 salt-tolerant varieties. [Conclusion] This study re- duced the work of salt-tolerance of wheat germplasm identification in salt pool. What＇s more, this study enriches the salt-tolerance of wheat germplasm resources, and provides a theoretical and technical support of wheat salt-tolerance breeding.展开更多
基金Supported by Foundation of President of Tianjin Academy of Agricultural Sciences(16001)Agriculture Science Technology Achievement Transformation Fund of Ministry of Science and Technology(2014GB2A100536)the National Science and Technology Pillar Program(2013BAD05B00)~~
文摘[Objective] Wheat is the major grain crop in China. Salinization as an abi- otic stress has become an important limiting factor of wheat output. It has great sig- nificance to ensure the food security by improved the production of wheat in salin- ization of soil. [Method] This research is reference to previous study to be estab- lished by germination rate and seeding plants changes under salt stress to deter- mine the ability of salt tolerance of different wheat varieties. Under 300 mM NaCI to count germination rate and measuring the height, root length and root number of seeding in 200 mM and 400 mM NaCI to evaluated wheat varieties resistant to salt. [Result] Under this method, we found 3 grade-1 salt-tolerant varieties, 3 grade-2 salt-tolerant varieties, 5 grade-3 salt-tolerant varieties. [Conclusion] This study re- duced the work of salt-tolerance of wheat germplasm identification in salt pool. What＇s more, this study enriches the salt-tolerance of wheat germplasm resources, and provides a theoretical and technical support of wheat salt-tolerance breeding.
