Agroscope, Institute for Plant Production Sciences IPS, 1260 Nyon, Switzerland

New cultivars of Italian ryegrass: Lipurus and Vicugna

Two new cultivars of Italian ryegrass have been released frequently: Lipurus and Vicugna. These tetraploid cultivars originate from the same breeding stock as the well-known varieties Lipo and Ellire. They are distinguished by an improved resistance against important diseases whilst maintaining the high yield level of Ellire. Mainly resistance against bacterial wilt <br>( Xanthomonas campestris pv. graminis) has been improved by selection after artificial infection. The seasonal distribution of yield differs from Ellire by a greater yield of the first cut in spring and a slightly inferior productivity in summer.

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