GA_(3)和6-BA对柿砧木种子破眠促萌效果研究  

Effects of GA_(3) and 6-BA on seeds dormancy breaking and germination promotion of persimmon rootstocks

作　　者：曹璐瑶 于晓丽[2] 宋来庆[2] 赵玲玲[2] 王彦波 张青林[3] 刘彬 徐君驰[4] 赵建伟 杜晓云 CAO Luyao;YU Xiaoli;SONG Laiqing;ZHAO Lingling;WANG Yanbo;ZHANG Qinglin;LIU Bin;XU Junchi;ZHAO Jianwei;DU Xiaoyun(College of Life Science,Yantai University,Shandong 364003;Yantai Academy of Agricultural Sciences;Key Laboratory of Horticultural Plant Biology,Huazhong Agricultural University;Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization,Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains,Huanggang Normal University)

机构地区：[1]烟台大学生命科学学院,山东364003 [2]山东省烟台市农业科学研究院 [3]华中农业大学园艺植物生物学教育部重点实验室 [4]黄冈师范学院经济林木种质改良与资源综合利用湖北省重点实验室大别山特色资源开发湖北省协同创新中心

出　　处：《中国果树》2022年第11期23-29,共7页China Fruits

基　　金：经济林木种质改良与资源综合利用湖北省重点实验室大别山特色资源开发湖北省协同创新中心开放基金项目(202019804);国家重点研发计划项目(2019YFD1001200)。

摘　　要：以君迁子和小果甜柿砧木为试材,采用赤霉素(GA_(3))和6-苄氨基嘌呤(6-BA)2种植物生长调节剂开展种子发芽试验,研究36个不同浓度的GA_(3)和6-BA处理及其组合对当季播种的2种柿砧木种子破眠促萌效果,以及不同柿砧木种子对2种植物生长调节剂的响应特点,探索柿砧木种子破眠促萌的适宜浓度。结果表明:一定浓度的GA_(3)可显著促进2种柿砧木种子的萌发,而6-BA无明显促进作用,君迁子和小果甜柿砧木种子对植物生长调节剂的反应不同,前者更加敏感,当GA_(3)浓度≥1000 mg/L时,君迁子和小果甜柿砧木种子的萌发开始受到显著影响,2000 mg/L为本研究所设定处理中的最佳浓度。研究结果将为柿高效育苗技术中的提早播种环节提供参考。Seeds germination test was conducted on two major persimmon rootstock types, Date plum(Diospyros lotus Linn.) and Xiaoguo-tianshi(Diospyros kaki Thunb.), with 36 different concentration combinations combined by gibberellin(GA) and 6-Benzylaminopurine(6-BA). The goal of this study was to investigate the effect of two plant growth regulators on seeds dormancy breaking and germination promotion, the characteristics of response of two different persimmon rootstocks seeds in supply with plant growth regulators, and the proper concentration of plant growth regulators to be helpful for seeds germination. The results showed that a certain concentration of GAcould significantly promote the germination of both persimmon rootstocks, whereas, the effect of 6-BA was not obvious. Date plum and Xiaoguo-tianshi had different responses to plant growth regulators, and the former was more sensitive. When GAconcentration above 1 000 mg/L, the germination of Date plum and Xiaoguo-tianshi rootstock seeds began to be significantly affected, and 2 000 mg/L was the best concentration in this study. The results will provide technical reference for early sowing and cultivation of persimmon seedlings.

关 键 词：休眠解除 促进萌发 小果甜柿 赤霉素 6-苄氨基嘌呤 

分 类 号：S663.4[农业科学—果树学]