AROOSTOOK (Secale cereale) was released by the USDA Soil Conservation service, New York State College of Agriculture and Life Sciences at Cornell University and the Maine Department of Agriculture, Division of Plant Industries, in November, 1981. Aroostook produces more fall growth when seeded late in the fall, more spring growth and exhibited greater winter hardiness than other varieties in comparison trials. The number of leaves per plant, were greater for Aroostook Rye than for Balboa, after 220 and 240 growing degree days, with a base temperature of 0oC. Growth habit is primarily winter, with a very small percentage of mixed spring or intermediate types. Aroostook is considered to be a very tall, early variety and is susceptible to leaf rust and ergot.
Spooner is a high yielding winter rye (diploid) released by the University of Wisconsin-Madison in 1992. Grain yields and test weight exceed those of Hancock. Spooner heads about 1 day earlier than Hancock and has excellent winter hardiness. Spooner is tall, averaging about 3 inches taller than Hancock. but lodging less than Hancock. Kernels wheat-like in color predominate.