Syngenta Biotechnology China-led research, with partners in the U.S., France, the UK, Chile, the Netherlands, Argentina, and ...

most sunflower varieties flower from summer to fall, or about 80 to 140 days after planting the seeds. It takes sunflowers roughly one more month to produce mature seeds after they start blooming.

The discovery that sunflower seeds can develop without fertilization reveals a pathway to accelerate improvement of this crop — and potentially others. When genetically different varieties of ...