Salt and Alkali-resistant Oil Sunflower:A Review on Germplasm Identification and Variety Breeding
Oil sunflower is one of the important oil crops in the northern region.At present,the scope of saline-alkali hazards is gradually expanding,which has become an important bottleneck restricting the development of oil sunflower.In order to carry out the identification and utilization of saline-alkali tolerant germplasm resources in saline-alkali areas,cultivating high-quality saline-alkali tolerant sunflower varieties is one of the important measures to improve the planting efficiency of saline-alkali crops and the sustainable development of agriculture.In this paper,the physiological mechanism of oil sunflower in response to saline-alkali stress was summarized,the molecular mechanism of oil sunflower response to saline-alkali stress,the identification of salt-tolerant germplasm resources of oil sunflower and the screening of excellent resources were reviewed.The latest research status of salt-tolerant variety breeding and germplasm resources innovation of oil sunflower were summarized.The study put forward new research ideas and methods for the innovative utilization of salt-tolerant germplasm resources and breeding of new varieties in the future.One was to determine the salinity tolerance level by identifying germplasm materials;the second was to further study the stress resistance mechanism of the collected and screened germplasm materials.At the same time,it also provided a theoretical basis for the breeding of salt-tolerant varieties of oil sunflower.
oil sunflowersalt and alkali resistancegermplasm resourcesidentificationbreeding
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NSTL
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