福建林业科技2026，Vol.53Issue(1)：121-125,132,6.DOI:10.13428/j.cnki.fjlk.2026.01.016
栀子'灵地珍栀'水培扦插植物生长调节剂优化试验
Optimization Study on Growth Regulators for Water-Cultured Cutting Propagation of Gardenia jasminoides'Lingdi Zhenzhi'
摘要
Abstract
To screen the optimal combination of plant growth regulators for hydroponic cuttings propagation of the new G.jasminoides cultivar'Lingdi Zhenzhi',optimizing rooting efficiency and root system development quality.Using semi-lignified branches of'Lingdi Zhenzhi'as material,a three-factor,three-level L9(33)orthogonal experiment was conducted(Factor A:IAA,IBA,NAA;Factor B:200,300,500 mg·L-1;Factor C:soaking time 2,4,6 h).Root rate,root length,root number,and root efficiency index(REI)were measured 30 days after cutting.The optimal treatment combination was determined through range analysis and analysis of variance.Results indicated that regulator type(RA=34.81)was the dominant factor influencing rooting rate(IBA>IBA>NAA),followed by concentration(RB=18.89)and duration(RC=4.07).The highest average root number was achieved with IBA 300 mg·L-1 soaked for 6 h(1.94±0.54 roots);The longest root length was achieved with IBA 500 mg·L-1 for 2 h immersion(2.12±0.72 cm).The highest root effectiveness index(REI)of(1.85±0.66)was obtained with IBA 300 mg·L-1 for 6 h immersion,reflecting synergistic enhancement in both root quantity and quality.Based on four indicators-total rooting rate,root number,root length,and REI—membership function analysis identified the optimal treatment as IBA 200 mg·L-1 soaked for 4 h.yielding a rooting rate of 62.22%and an REI of 1.42.This combination significantly outperformed others,establishing it as the optimal plant growth regulator regimen for promoting rooting in hydroponic cuttings of'Lingdizhenzhi'.This formulation achieves a balanced improvement in both rooting efficiency and root system quality.关键词
灵地珍栀/水培扦插/植物生长调节剂Key words
Gardenia jasminoides'Lingdi Zhenzhi'/water-cultured cutting/growth regulators分类
农业科技引用本文复制引用
官志斌..栀子'灵地珍栀'水培扦插植物生长调节剂优化试验[J].福建林业科技,2026,53(1):121-125,132,6.基金项目
自然生物资源保育利用福建省高校工程中心开放基金(2023KF02) （2023KF02）
中央财政林业科技推广示范项目(闽[2024]TG22) （闽[2024]TG22）
福建省科技厅高校产学合作项目(2022N5009) （2022N5009）
福州市林业科技项目(2024RLKY02)感谢福建农林大学自然生物资源保育利用福建省高校工程中心提供的开放基金(2024KF01),让我有机会进入该中心进行深化研究,也感谢各位老师、同学们给予的试验和分析的无私帮助. （2024RLKY02）
