TECHNOLOGY FOCUS - BIOLOGY - Preparation (Claimed): Preparation of Sorghum plant, comprises: providing a first Sorghum plant comprising a first exogenous nucleic acid, where the first exogenous nucleic acid comprises a transcription upstream activation sequence (UAS) and a first promoter; providing a second Sorghum plant comprising a second exogenous nucleic acid, where the second exogenous nucleic acid comprising a second promoter operably linked to a transcription factor, and the transcription factor binds the UAS; crossing the first Sorghum plants to a plurality of the second Sorghum plants, where the Sorghum plants is male sterile and the Sorghum plants is male fertile; and harvesting F1 seed from the male sterile Sorghum plants, where the sorghum plants grown from the F1 seed express the plant sterility sequence, and the stalks of the Sorghum plants have a sucrose purity that is higher at maturity than that from corresponding control plants that lack the exogenous nucleic acid. Preferred Components: The plant has reduced fertility. The stalk of the Sorghum plant or F1 sorghum plants have an increased total sugar content at maturity relative to that of the corresponding control plant. The stalks of the F1 Sorghum plants have a total sugar content that is increased by 1-25% or 40-60%, relative to a corresponding sorghum plant that lacks the exogenous nucleic acid. The plant is: an F1 hybrid, and male sterile. The plant exhibits cytoplasmic male sterility (CMS). The second Sorghum plants further comprise a fertility restorer gene. The plant has a sugar purity of 80% or greater at maturity, or 90% or greater at maturity. The stalks of the Sorghum plants grown from the F1 seed have an increased total sugar content at maturity relative to that of the corresponding control plants. The plant has increased total sugar content at maturity than that of the corresponding control plant. The sucrose purity is at least 90%, 92%, 95% or 97% at maturity. The F1 plants exhibit reduced fertility. The plant sterility sequence: is an antisense nucleic acid and a ribozyme; inhibits expression of a gene by post-transcriptional gene silencing; and is a small interfering RNA. The transcription factor is a chimeric transcription factor. The chimeric transcription factor comprises a binding domain comprising Huntingtin-associated protein 1 (Hap1), LexA, Lac Operon, arginine repressor (ArgR), AraC, pleiotropic drug resistance protein-3 (PDR3), 2-isopropylmalate synthase (LEU3), and GAL4 binding domain. The chimeric transcription factor comprises an activation domain comprising VP16, phorbol esters/diacylglycerol binding domain (C1 protein), ATMYB2, HAFL-1, ANT, ALM2, AvrXa10, Viviparous 1 (VP1), DNA-binding with one finger (DOF), and rice functional transcriptional activator (RISBZ1) activation domain. The plant sterility sequence affects spikelet meristem identity and reduces expression of a polypeptide comprising feline zona pellucida (FZP), GN1, density-enhanced (protein-tyrosine-phosphatase-1ase-1) (DEP1), PAP2, SNB, LHS1, IFA1, IDS1 and RCN. The first promoter is PD3796 (SEQ ID NO: 20) or PD3800 (SEQ ID NO: 21). The plant sterility sequence affects establishment of floral meristem identity and reduces expression of a polypeptide comprising APO1, LFY, CAL, DL, MADS6, API and FUL. The first promoter is CeresAnnt:8643934 (SEQ ID NO: 22); CeresAnnt:8632648 (SEQ ID NO: 23); CeresAnnt:8681303 (SEQ ID NO: 24); and CeresAnnt:8642422 (SEQ ID NO: 25). The plant sterility sequence affects floral organ initiation, development, or function and reduces expression of a polypeptide comprising OsMADS2, amino-3-phosphonopropionic acid (AP3), MADS3, polyimide (PI), SUPERWOMAN1, Oryza sativa Japonica Group Polypeptide (OsMADS8), OsMADS58, active pharmaceutical ingredient (API), AG, and apicomplexan (AP2). The plant sterility sequence affects floral organ initiation, development, or function and reduces expression of Src-homology 2 domain-containing phosphatase (SHP-1), SHP2, aintegumenta (ANT) and crabs claw (CRC). The first promoter is CeresAnnt:8657974 (SEQ ID NO: 26); CeresAnnt:8732691 (SEQ ID NO: 27); CeresAnnt:8031970 (SEQ ID NO: 28); and CeresAnnt:8669907 (SEQ ID NO: 29). The plant sterility sequence reduces expression of a nucleic acid having at least 80% identity to a nucleotide sequence comprising SEQ ID NO: 1-19. The seeds are hybrid seeds. The biomass comprises stalks of the Sorghum plants. The biomass comprises stalks of the Sorghum plants.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The biofuel is ethanol. The composition comprises anhydrous ethanol. Preferred Method: The method-I further comprises growing Sorghum plants from the harvested seeds. ACTIVITY - Fungicide.    MECHANISM OF ACTION - None given.    EXAMPLE - No suitable example given.