Abstract: The present disclosure is directed to a production and cultivar system for establishing sterile, odd-ploidy Miscanthus×giganteus plantations from seed, where the seed are derived from fertile Miscanthus×giganteus parents of even but different ploidies.

Abstract: The present invention provides varieties of fertile Miscanthus that have greater water deficit tolerance, greater vigor, greater cold tolerance, later flowering, and/or higher biomass, i.e., greater biomass than a control Miscanthus plant, and methods for producing and using the said Miscanthus varieties. These varieties may be used to produce cellulosic biofuels, or to produce inbred or hybrid Miscanthus plants. Plant cells, seeds and other plant parts are also described.

Abstract: The invention relates to a method for selection of modified plant transcription factor polypeptides, polynucleotides that encode them, and methods of producing transgenic plants having advantageous properties, including increased biotic resistance and abiotic stress tolerance, as compared to wild-type or control plants. Without modifications, the transcription factor sequences, when overexpressed in plants, often produce adverse morphological and developmental effects. The disclosed method allows selection of modifications that mitigate these adverse morphological and developmental effects.