甘蔗糖业2025，Vol.54Issue(5)：18-24,7.DOI:10.3969/j.issn.1005-9695.2025.05.003
光周期诱导起始时间对桂糖系列甘蔗亲本开花习性的影响
Effects of Photoperiod Induction Start Time on Flowering Habits of Parental Sugarcane in the Guitang Series
摘要
Abstract
To optimize the flowering regulation techniques for the Guitang series of sugarcane and clarify the effects of different photoperiod induction on their flowering habits,this study used six Guitang series sugarcane parents,such as Guitang35 and Guitang44,as experimental materials.The induction start dates were set as May 1st(T1),June 1st(T2),and a natural light control group(CK).The initial flowering time,flowering rate,pollen fertility,and flowering characteristics of the parents after induction were systematically investigated and analyzed to explore the effectiveness of photoperiod conditions in inducing flowering in Guitang series sugarcane parents.The results showed that a 12 h 25 min photoperiod induction significantly advanced the initial flowering time of the tested parents,with the T1 group showing a more pronounced advance compared to the T2 group,averaging 25 days earlier.In terms of flowering rate,the final flowering rate of the T1 group was significantly higher than that of the T2 and CK groups.Regarding pollen fertility,some parents in the T1 group exhibited better pollen fertility than those in the T2 and CK groups.The findings indicate that initiating a 12 h 25 min photoperiod induction for Guitang series sugarcane parents from May 1st is effective,providing technical support for precise flowering synchronization and improved pollination efficiency in hybrid breeding parents.关键词
甘蔗/亲本/桂糖系列/光周期诱导/开花Key words
Sugarcane/Parents/Guitang series/Photoperiod induction/Flowering分类
农业科学引用本文复制引用
高丽花,雷敬超,李明伦,经艳,庞家本,林秋妹,张小秋,宋修鹏,张保青,周会..光周期诱导起始时间对桂糖系列甘蔗亲本开花习性的影响[J].甘蔗糖业,2025,54(5):18-24,7.基金项目
广西科技重大专项(桂科AA22117002、桂科AA23073001、桂科AA24206005) （桂科AA22117002、桂科AA23073001、桂科AA24206005）
广西科技计划项目(农业农村领域)(桂科农AB24153001) （农业农村领域）
中国科学院战略性先导科技专项(XDA0450000) （XDA0450000）
八桂青年拔尖人才项目 （）
亚热带农业生物资源保护与利用国家重点实验室开放课题(SKLCUSA-b202308) （SKLCUSA-b202308）
