Abstract
Single-cross hybrids of orchard grass (Dactylis glomerata L.) were evaluated for yield, in vitro digestibility (IVD), and relative maturity in three trials. All trials were planted broadcast, using seed produced on male-sterile clones. All trials were harvested for 2 yr. The average yield of the 48 hybrids tested was 98% of that for the cultivar Frode in the first cut each year, and 103% over the season. The most productive hybrid produced 28% more forage than Frode in the first cut, and 15% more over the season. For IVD, there was no evidence of hybrid superiority. The results indicate that the use of hybrids can result in an increase in forage yield.
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