From 2005 to 2023,21 sweet sorghum hybrids were selected and bred by Institute of Sorghum of Liaoning Academy of Agricultural Sciences in 18 years,of which 11 were A1 cytoplasmic type,4 A2 cytoplasmic type,5 A3 cytoplasmic type,and 1 9E cytoplasmic type.Breakthroughs have been made in the creation of A1,A2,A3 and 9E cytoplasmic hyperglycemic sterile lines,which have eliminated the genetic singleness and vulnerability of sorghum,created high-glucose resources and high-sugar parental lines,selected reasonable plant types,and expanded the utilization of energy sweet sorghum germplasm resources.The A1,A2 and 9E cytoplasm varieties were selected for both grain and straw use,and the stem yield,sugar content and grain yield were synergistically increased,and the sugar content of the stem of the A3 cytoplasmic hybrid was increased by 3-5 percentage points,which was manifested as no grain formation,which solved the problem of lodging of sweet sorghum and avoided the production risk.Liaotian No.1 and Liaotian No.3 sweet sorghum hybrids have been widely popularized and applied,playing an important role in the development of biomass energy industry,promoting agricultural restructuring,increasing farmers'income,and having very broad prospects for development and application.
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