The invention relates to the alfalfa variety designated R0820SN520. Provided by the invention are the seeds, plants and derivatives of the alfalfa variety R0820SN520. Also provided by the invention are tissue cultures of the alfalfa variety R0820SN520 and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing the alfalfa variety R0820SN520 with itself or another alfalfa variety and plants produced by such methods.

The invention relates to the alfalfa variety designated C0416A3360. Provided by the invention are the seeds, plants and derivatives of the alfalfa variety C0416A3360. Also provided by the invention are tissue cultures of the alfalfa variety C0416A3360 and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing the alfalfa variety C0416A3360 with itself or another alfalfa variety and plants produced by such methods.

The invention relates to the alfalfa variety designated R0519ST258. Provided by the invention are the seeds, plants and derivatives of the alfalfa variety R0519ST258. Also provided by the invention are tissue cultures of the alfalfa variety R0519ST258 and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing the alfalfa variety R0519ST258 with itself or another alfalfa variety and plants produced by such methods.

The invention relates to the alfalfa variety designated R0419A3140. Provided by the invention are the seeds, plants and derivatives of the alfalfa variety R0419A3140. Also provided by the invention are tissue cultures of the alfalfa variety R0419A3140 and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing the alfalfa variety R0419A3140 with itself or another alfalfa variety and plants produced by such methods.

The invention relates to the alfalfa variety designated R0919TF549. Provided by the invention are the seeds, plants and derivatives of the alfalfa variety R0919TF549. Also provided by the invention are tissue cultures of the alfalfa variety R0919TF549 and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing the alfalfa variety R0919TF549 with itself or another alfalfa variety and plants produced by such methods.

The invention relates to the alfalfa variety designated C0417A3151. Provided by the invention are the seeds, plants and derivatives of the alfalfa variety C0417A3151. Also provided by the invention are tissue cultures of the alfalfa variety C0417A3151 and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing the alfalfa variety C0417A3151 with itself or another alfalfa variety and plants produced by such methods.

The invention relates to the alfalfa variety designated R0415C4156. Provided by the invention are the seeds, plants and derivatives of the alfalfa variety R0415C4156. Also provided by the invention are tissue cultures of the alfalfa variety R0415C4156 and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing the alfalfa variety R0415C4156 with itself or another alfalfa variety and plants produced by such methods.

The present disclosure provides alfalfa plants exhibiting broad spectrum resistance to Race 1, Race 2, and Race 5 anthracnose. Such plants may comprise novel introgressed genomic regions associated with disease resistance from Race 1, Race 2, and Race 5 anthracnose. In certain aspects, compositions, including novel polymorphic markers and methods for producing, breeding, identifying, and selecting plants or germplasm with a disease resistance phenotype are provided. Also provided are alfalfa varieties designated as C0416C4164 and H0415C4114. Provided by the invention are the seeds, plants and derivatives of alfalfa varieties C0416C4164 and H0415C4114. Also provided by the invention are tissue cultures of alfalfa varieties C0416C4164 and H0415C4114, and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing alfalfa variety C0416C4164 or H0415C4114 with itself or another alfalfa variety and plants produced by such methods.

The invention relates to the alfalfa variety designated C0415SN208. Provided by the invention are the seeds, plants and derivatives of the alfalfa variety C0415SN208. Also provided by the invention are tissue cultures of the alfalfa variety C0415SN208 and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing the alfalfa variety C0415SN208 with itself or another alfalfa variety and plants produced by such methods.

The invention relates to the alfalfa variety designated C0415C4360. Provided by the invention are the seeds, plants and derivatives of the alfalfa variety C0415C4360. Also provided by the invention are tissue cultures of the alfalfa variety C0415C4360 and the plants regenerated therefrom. Still further provided by the invention are methods for producing alfalfa plants by crossing the alfalfa variety C0415C4360 with itself or another alfalfa variety and plants produced by such methods.