草原与草坪2025，Vol.45Issue(1)：35-44,10.DOI:10.13817/j.cnki.cyycp.2025.01.005
28-高芸苔素内酯对草坪种子萌发和幼苗生长的影响
Effects of 28-homobrassinolide on the turfgrass seed germination and seedling growth
摘要
Abstract
[Objective]To investigate the effects of different concentrations of 28-homobrassinolide on seed ger-mination and seedling growth of perennial ryegrass(Lolium perenne)and bermudagrass(Cynodondactylon).[Method]The response of seed germination rate,root morphology and structure,and biomass in two turfgrass spe-cies was assessed using potand petri dish tests.[Result]The response to 28-homobrassinolide varied between grass species.In the Petri dish experiment,Bermudagrass seeds treated with 4 000 times dilution of 28-homobrassinolide·gibberellic acidA3 Water dispersible granules showed significant improvements in germination rate,root morphology and biomass compared to the control treatment(P<0.05).In the pot experiments,the dilution of 2 000 times 28-ho-mobrassinolide significantly promoted seedling growth and branching(P<0.05).For both Petri dish and pot experi-ments,the dilution of 1 000 times 28-homobrassinolide significantly promoted the germination rate,root morphology,and tillering of perennial ryegrass(P<0.05),compare to the control water treatment.[Conclusion]Different concen-trations of 28-homobrassinolide significantly promoted seed germination and seedling development in both perennial ryegrass and bermudagrass.The results of this study provide a theoretical foundation for the establishment,mainte-nance,and management of turfgrass,with potential application in landscaping and sports turf management.关键词
28-高芸苔素内酯/种子萌发/根系构型/幼苗生长Key words
28-Homobrassinolide/seed germination/root architecture/seedling growth分类
农业科技引用本文复制引用
徐俊洲,史顺心,余铮,王英,卢美婷,赵德义,刘天增..28-高芸苔素内酯对草坪种子萌发和幼苗生长的影响[J].草原与草坪,2025,45(1):35-44,10.基金项目
华南农业大学横向项目 （）
