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Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (32): 1-8.doi: 10.11924/j.issn.1000-6850.casb16110032

Special Issue: 小麦

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Research Progress of Thermo-photo Sensitive Two-line Hybrid Wheat in Southwest China

  

  • Received:2016-11-07 Revised:2017-11-06 Accepted:2017-01-20 Online:2017-11-27 Published:2017-11-27

Abstract: To promote research on thermo- photo sensitive two- line hybrid wheat in southwest China, the research progress was reviewed, including the discovery of thermo-photo sensitive male sterile line, the origin of research on thermo-photo sensitive two-line hybrid wheat, the stability of male sterile line, the physiology change, the effects of light and temperature on fertility and the effects of the extraneous chemicals on the fertility of‘C49S’. The application achievements were reviewed, including the improvement of original thermo- photo sensitive male sterile line, the breeding of restore line, the screening of strong heterosis hybridized combination of thermo- photo sensitive two- line hybrid wheat, and the supporting cultivation measures together with production demonstration of thermo-photo sensitive two-line hybrid wheat in southwest China. The problems in thermo- photo sensitive two- line hybrid wheat breeding in southwest China were proposed: (1) hybrid wheat application would be restricted by the loss of the stripe rust resistance, (2) how to increase the purity of hybrid wheat seed, (3) how to decrease the cost of hybrid wheat seed production. Finally, new research directions on thermo-photo sensitive two-line hybrid wheat in southwest China were introduced.