中国糖料2025，Vol.47Issue(3)：20-27,8.DOI:10.13570/j.cnki.scc.2025.03.003
桂糖系列甘蔗亲本及其杂交组合的育种价值分析
Analysisof Breeding Value of Guitang Series Sugarcane Parents and Their Cross Combinations
摘要
Abstract
[Objective]Rational selection and evaluation of sugarcane parents and combinations are critical for sugarcane breeding.[Methods]In this study,the sexual generations of 31 hybrid combinations obtained by crossing 9 Guitang sugarcane parents and other commonly used parents were used as research materials.Seedlings of each combination were graded and screened through the family selection method to analyze the breeding value of 9 Guitang sugarcane parents and combinations.[Results]The results indicated that the 10 hybrid combinations including'GT02-901×YT85-177','GN99-591×GT02-901'were classified as grade 1 and 2 combinations.The transplanted seedlings of the 10 combinations accounted for 36.9%of the total combinations,with an average seedling selection rate of 22.1%,yielding 745 offspring materials(61.9%of the total selected offspring).These 10 combinations had high selection rate and great breeding value,making them recommended for further breeding applications.The selection rates of the seedlings of the combinations produced by the five parents of'GT00-122','GT02-901','GT73-167','GT96-211'and'GT92-66'all exceeded 10%,contributing 954 selected clones accounting for 79.3%of the total selected offspring,and this was a great contribution to the selected offspring population.[Conclusion]Combinations involving these five parents demonstrated a high probability of producing Grade 1 or 2 hybrids,indicating high breeding value,and are recommended to be used as important breeding parents for further hybridization and utilization.It is suggested that'GT94-119','GT02-467'and'GT03-66'be further evaluated by crossing with other parents.关键词
甘蔗/桂糖亲本/杂交组合/育种价值Key words
sugarcane/Guitang parents/cross combination/breeding value分类
农业科技引用本文复制引用
夏红明,姚丽,刘家勇,昝逢刚,赵俊,赵丽萍,赵培方..桂糖系列甘蔗亲本及其杂交组合的育种价值分析[J].中国糖料,2025,47(3):20-27,8.基金项目
国家重点研发计划项目(2022YFD2301100) （2022YFD2301100）
云南种子种业联合实验室(202205AR070001-13) （202205AR070001-13）
国家糖料体系产业技术体系(CARS-17)资助. （CARS-17）
