Sunflower Hybrid Seed Production in California
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California’s Sacramento Valley is world renowned as a premier location for sunflower seed production. Hybrid sunflower seed production must follow strict standards to meet California state export mandates for all certified sunflower fields. These include crop rotation, weed and disease control, simultaneous bloom of the male and female lines, and field isolation in time and space to ensure varietal purity. This publication addresses ass aspects of production for growing certified seed including, land selection, crop rotation, seeding rate and timing, pollination, soil fertility and fertilizers, irrigation, pest management, abiotic disorders, harvesting and processing, cleaning, grading, and marketing. This free publication is available to download here. Rachel Long, UC Davis Farm Advisor, was the inspiration and lead author of the publication, with co-authors indlucing Tom Gulya, Sarah Light, Khalid Ball, Konrad Mathesius, and Ronald D. Meyer.
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