大豆科学2024，Vol.43Issue(4)：463-470,8.DOI:10.11861/j.issn.1000-9841.2024.04.0463
不同化控剂处理对杂交大豆制种催熟效果的影响
Effects of Different Chemical Control Agents on Ripening of Hybrid Soybean Seed Production
摘要
Abstract
Large-scale seed production technology is a key link in the utilization of soybean heterosis.With the progress of industrialization,it is urgent to support the whole mechanized seed production technology.In the current seed production process,the female parent often appears the phenomenon of holding green,which seriously affects the mechanized harvest,seed shrinkage,and greatly limits the development of industrialization of hybrid soybean.We studied the effects of different chemical control agents and treatments on the ripening of hybrid soybean seed.The results showed that the three chemical control agents could accelerate the dehydration of stems and leaves and promote the ripening of plants,the ripening rate of Ethephon was lower than that of Glyphosate,and the ripening efficiency was higher with the concentration of chemical control agent.Spraying Glyphosate and Diquat at R6 would make the seed unable to develop normally.If spraying Diquat later than R7,the ripening effect of the chemical control agents was not ideal,and R6+7 d was the best spraying period,it could solve the problem of seed shrinkage and 100-seed weight of male sterile line.Glyphosate was an inner-interest conductive ripening agent.Spraying Glyphosate could reduce seed germination rate and could not be used in hybrid soybean seed production.Considering the effect of ripening,environmental safety,germination rate and water content,the treatment of Diquat at R6+7 d stage can effectively promote plant ripening,accelerate dewatering and defoliation of stems and leaves,reduce 100-seed weight and ensure seed quality,meet the requirements of mechanized harvesting.关键词
化控剂/杂交大豆/百粒重/发芽率/催熟Key words
chemical control agent/hybrid soybeans/100-seed weight/germination rate/ripening引用本文复制引用
王鹏年,刘大壮,闫昊,张井勇,赵丽梅,张伟,郑宇宏,王亮..不同化控剂处理对杂交大豆制种催熟效果的影响[J].大豆科学,2024,43(4):463-470,8.基金项目
吉林省农业科技创新工程项目(CXGC2022DX012,CXGC2022RCG004) （CXGC2022DX012,CXGC2022RCG004）
国家现代农业产业技术体系建设专项(CARS-04). （CARS-04）
