Foundation and Certified Seed Production in Sunflower and Castor
Summary :Seed production protocols for sunflower varieties (isolation 400m, roughing insects, OD varieties 0.1%, field/seed standards) and hybrids (CMS A/B/R lines, 3:1 ratio planting), castor varieties and hybrids (pistillate/monoecious lines, isolation 300-1000m), hand pollination techniques, quality standards, and hybrid vigor exploitation.