热带农业科学2025，Vol.45Issue(4)：1-7,7.DOI:10.12008/j.issn.1009-2196.2025.04.001
生根粉浸种浓度、时间与茎长对木薯苗生长的影响
Effects of Root Powder Concentration,Duration of Soaking,and Stem Length on Cassava Seedling Growth
摘要
Abstract
To optimize cassava stems soaking technology and pretreatment,this study evaluated the effects of 4 rooting powder concentrations(0,20.0,40.0,and 60.0 mg·L-1),soaking durations(30 and 60 min),and stem lengths(125.0 cm and 15.0 cm)on seedling growth in'South China No.10'cassava,with dry-planted stems used as controls.The results revealed the following:(1)All rooting powder concentrations significantly improved multiple growth parameters,including plant height,stem diameter,fibrous root(FR)number,storage root(SR)number,fresh weight of FR,and SR,and the stem+leaves(S&L)and root/top ratios,compared with those of the control,with 40.0 and 60.0 mg·L-1 showing optimal performance.(2)Both soaking durations increased growth metrics without significant differences between the 30 and 60 min treatments.(3)While both stem lengths improved growth,the 15.0 cm treatment outperformed the other treatments,but there were no significant differences between the 15.0 and 125.0 cm treatments.These findings demonstrate that rooting powder soaking promotes co-ordinated aerial and subterranean growth.For manual planting,we recommend treating 15.0 cm with 40.0～60.0 mg·L-1 solu-tion for 30～60 min;for mechanical planting,125.0 cm stems should be soaked before cutting.关键词
木薯/种茎/生根粉/浸种/农艺性状/生物量Key words
cassava/stem/rooting powder/soaking/agronomic traits/biomass分类
农业科技引用本文复制引用
魏云霞,王娟,黄洁,李天,刘丽娟..生根粉浸种浓度、时间与茎长对木薯苗生长的影响[J].热带农业科学,2025,45(4):1-7,7.基金项目
财政部和农业农村部"国家现代木薯产业技术体系"(No.CARS-11-HNHJ). （No.CARS-11-HNHJ）
