INITIAL TRIALS in 1961 comparing Piper sudan, SX-11 (a sudan x grain sorghum cross) and NK-300 (a forage sorghum) showed that there was no significant difference in total seasonal yield in dry matter production when used as pasture, although Piper outyielded the other two. When used as green chop there was no significant difference between Piper and SX-11, and both significantly outyielded NK-300. These trials were grown in 12-inch rows and harvested throughout the season as each variety reached 24 inches in height as pasture or 50% late boot stage as green chop.

A progress report of Project No. 2024, Department of Agronomy, U.C., Davis.