Abstract:Four varieties of perennial ryegrass, (S24, S321, S23 and Endura), were grown in monoculture and in all possible binary mixtures. Three spatial arrangements of varieties within mixtures were used. Total DM yields were recorded from nine harvests during 1969 for mooocultures and mixtures and for the mixture components.The arrangement of varieties within mixtures had no effect on the total DM yield ofthe mixtures. Monocultures and mixtures did not differ significantly in yield at any harvest or in annual total, … Show more
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