Research Progress on Identification and Evaluation Methods of Sunflower Drought Resistance and Related QTL Mapping
Sunflower is one of the five major oil crops in China and has certain economic value.With the global warming,drought and water shortage have become a major abiotic stress factor affecting its growth and yield,which seriously hinders the production and sustainable development of sunflower.In order to fundamentally alleviate the drought crisis brought about by the crisis of reduced production of sunflowers,the most economical and effective way is to improve the drought resistance of sunflowers and cultivate drought-resistant varieties.In order to provide reference for sunflower breeding for drought resistance,this study describes the sunflower drought resistance mechanism,sunflower drought resistance identification index research,sunflower drought resistance identification and evaluation methods,as well as sunflower drought resistance related traits QTL mapping research progress,and the development of sunflower drought resistance research.The direction was prospected,with a view to providing help for the in-depth exploration of the molecular mechanism of sunflower drought resistance and speeding up the molecular genetic breeding of sunflower drought resistance in the future.
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