A sorghum seed comprising in its genome at least one polynucleotide encoding a polypeptide having an alanine to tyrosine substitution at position 93 of the sorghum AHAS protein large subunit. The plant has increased resistance to one or more herbicides, for example from the imidazolinone group, as compared to wild-type sorghum plants. The sorghum plant may comprise in its genome, one, two, three or more copies of a polynucleotide encoding a mutated large subunit of sorghum AHAS or a sorghum AHAS polypeptide of the invention. In this context, the sorghum plant may be tolerant to any herbicide capable of inhibiting AHAS enzyme activity. For example, the sorghum plant may be tolerant to herbicides of the imidazolinones type, such as imazethapyr, imazapir, and imazapic or to herbicides of the sulfonylurea group.

A novel sorghum variety designated XSW5436 and seed, plants, plant parts and plant cells thereof are produced from a cross of inbred sorghum varieties. Methods for producing a sorghum plant comprise crossing hybrid sorghum variety XSW5436 with another sorghum plant. Sorghum variety XSW5436, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of sorghum variety XSW5436 are provided. Methods for producing a sorghum plant containing in its genetic material one or more traits introgressed into sorghum variety XSW5436 include one or both of backcross conversion and transformation of one or both inbred parents. The sorghum seed, plants and plant parts produced thereby are described.

A novel sorghum variety designated XSW256 and seed, plants, plant parts and plant cells thereof are produced from a cross of inbred sorghum varieties. Methods for producing a sorghum plant comprise crossing hybrid sorghum variety XSW256 with another sorghum plant. Sorghum variety XSW256, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of sorghum variety XSW256 are provided. Methods for producing a sorghum plant containing in its genetic material one or more traits introgressed into sorghum variety XSW256 include one or both of backcross conversion and transformation of one or both inbred parents. The sorghum seed, plants and plant parts produced thereby are described.

A novel sorghum variety designated XSW5902 and seed, plants, plant parts and plant cells thereof are produced from a cross of inbred sorghum varieties. Methods for producing a sorghum plant comprise crossing hybrid sorghum variety XSW5902 with another sorghum plant. Sorghum variety XSW5902, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of sorghum variety XSW5902 are provided. Methods for producing a sorghum plant containing in its genetic material one or more traits introgressed into sorghum variety XSW5902 include one or both of backcross conversion and transformation of one or both inbred parents. The sorghum seed, plants and plant parts produced thereby are described.

A novel sorghum variety designated XS4321 and seed, plants, plant parts and plant cells thereof are produced from a cross of inbred sorghum varieties. Methods for producing a sorghum plant comprise crossing hybrid sorghum variety XS4321 with another sorghum plant. Sorghum variety XS4321, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of sorghum variety XS4321 are provided. Methods for producing a sorghum plant containing in its genetic material one or more traits introgressed into sorghum variety XS4321 include one or both of backcross conversion and transformation of one or both inbred parents. The sorghum seed, plants and plant parts produced thereby are described.

A novel sorghum variety designated XSW4801 and seed, plants, plant parts and plant cells thereof are produced from a cross of inbred sorghum varieties. Methods for producing a sorghum plant comprise crossing hybrid sorghum variety XSW4801 with another sorghum plant. Sorghum variety XSW4801, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of sorghum variety XSW4801 are provided. Methods for producing a sorghum plant containing in its genetic material one or more traits introgressed into sorghum variety XSW4801 include one or both of backcross conversion and transformation of one or both inbred parents. The sorghum seed, plants and plant parts produced thereby are described.

A novel sorghum variety designated PH2873FR and seed, plants and plant parts thereof are provided. Methods for producing a plant comprise crossing sorghum variety PH2873FR with another plant. Sorghum seed, plants and plant parts produced by crossing sorghum variety PH2873FR with another plant are described. Methods for producing a plant containing in its genetic material one or more traits introgressed into PH2873FR include one or both of backcross conversion and transformation. Hybrid sorghum seed, plants or plant parts produced by crossing the sorghum variety PH2873FR or a locus conversion of PH2873FR with another sorghum variety are disclosed.

A novel sorghum variety designated PH2431MW and seed, plants and plant parts thereof are provided. Methods for producing a plant comprise crossing sorghum variety PH2431MW with another plant. Sorghum seed, plants and plant parts produced by crossing sorghum variety PH2431MW with another plant are described. Methods for producing a plant containing in its genetic material one or more traits introgressed into PH2431MW include one or both of backcross conversion and transformation. Hybrid sorghum seed, plants or plant parts produced by crossing the sorghum variety PH2431MW or a locus conversion of PH2431MW with another sorghum variety are disclosed.

A novel sorghum variety designated PH1699FW and seed, plants and plant parts thereof are provided. Methods for producing a plant comprise crossing sorghum variety PH1699FW with another plant. Sorghum seed, plants and plant parts produced by crossing sorghum variety PH1699FW with another plant are described. Methods for producing a plant containing in its genetic material one or more traits introgressed into PH1699FW include one or both of backcross conversion and transformation. Hybrid sorghum seed, plants or plant parts produced by crossing the sorghum variety PH1699FW or a locus conversion of PH1699FW with another sorghum variety are disclosed.

A novel sorghum variety designated XSW4523 and seed, plants, plant parts and plant cells thereof are produced from a cross of inbred sorghum varieties. Methods for producing a sorghum plant comprise crossing hybrid sorghum variety XSW4523 with another sorghum plant. Sorghum variety XSW4523, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of sorghum variety XSW4523 are provided. Methods for producing a sorghum plant containing in its genetic material one or more traits introgressed into sorghum variety XSW4523 include one or both of backcross conversion and transformation of one or both inbred parents. The sorghum seed, plants and plant parts produced thereby are described.