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向日葵是世界主要油料作物之一。近二十年来,世界向日葵的总产量翻了一番,这一成就的获得有一半得益于双高(高产、高含油率)杂交种向日葵的遗传改良工作。世界向日葵的改良工作经历了以下三次重大飞跃:
Sunflower is one of the world’s major oilseed crops. Over the past two decades, the total output of sunflower in the world has doubled, and half of this achievement has benefited from the genetic improvement work of sunflower with double height (high yield and high oil content). The sunflower improvement work in the world has undergone three major leaps: