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See What Good Yields
RS 28XT37 offers great plant style and standability. It provides big yields across broad acres. RS 28XT37 enjoys SDS environments.
XR D97-95 provides very good drought tolerance on tougher acres. Strong emergence and excellent early vigor. Anthracnose stalk resistant.
XR D10-16 is the complete package. It provides great stalks, roots, early vigor and kernel depth. The standard for mid-full relative maturity.
Forage Feast RL17 was bred for herbage quality by delivering excellent NDFD 48 and TTNDFD scores. Along with top notch forage quality, it delivers outstanding yield potential.
Our roots as a company began on a diverse family farm owned by Grandpa Sylvan and Grandma Pearl Rupp. With the help of their seven children, they produced corn, beans, popcorn and strawberries along with cattle and hogs, which was pretty typical of the traditional family farm in the mid-1900s.
Grandpa Sylvan’s interest in farming was clearly demonstrated in one of our family heirlooms he created during grade school—a book of detailed, hand-drawn sketches of plants he found on the farm. This interest led him to start the “Sylvan L. Rupp Seed Farm” in 1946, which began by selling hybrid corn seed, along with producing and marketing public soybean, wheat and oat varieties to area farmers.
Download a PDF version or request a printed version of our current Grain & Forage Catalog on the Catalogs page.