北华大学学报（自然科学版）2024，Vol.25Issue(3)：304-308,5.DOI:10.11713/j.issn.1009-4822.2024.03.004
低温层积催芽天女木兰种子脱落酸含量变化
Changes of ABA Content in Low Temperature Layered Sprouting Seeds of Magnolia sieboldii K.Koch
摘要
Abstract
Studying ABA change rule in the low temperature layered germination seeds of Magnolia sieboldii to provide basis for relieving seed dormancy.Taking the seeds of Magnolia sieboldii as the research object,the seeds were collected from 0,30,60,90,120 and 150 d low-temperature sand storage and layering processes.The changes of ABA content in the testa and endosperm (including embryo) of Magnolia sieboldii during low-temperature layering were measured by high-performance liquid chromatography.The results showed that the content of ABA in the seed coat and endosperm (including embryo) of 0 d wet seeds was significantly higher than that of 0 d dry seeds.The content of ABA in the seed coat and endosperm (including embryo) of Magnolia sieboldii seeds during low-temperature sand storage showed a decreasing trend with increasing of treatment time;The content of ABA in the endosperm (including embryo) of low-temperature sand storage layer 0 ～30 d was higher than that in the seed coat,but after 60 days,the content of ABA in the endosperm (including embryo) of all treated seeds was lower than that in the seed coat;At 150 days of treatment,there was no ABA in the seed coat and endosperm (including embryo);The embryo showed a gradually increasing trend with time increasing of low temperature sand storage layer,and the cotyledons of embryos treated for 150 days became larger.关键词
天女木兰/种子/脱落酸/低温层积/变化规律Key words
Magnolia sieboldii K. Koch/seed/ABA/low temperature stratification/change rule分类
农业科技引用本文复制引用
王玉莹,吴生海,王金玲,杨春波,刘克俭,于滨,杜凤国..低温层积催芽天女木兰种子脱落酸含量变化[J].北华大学学报（自然科学版）,2024,25(3):304-308,5.基金项目
中央财政林业科技推广示范项目(JLT2020-21) （JLT2020-21）
北华大学研究生创新计划项目(2022048). （2022048）
