ZHANG Xia,CHANG Haina,LI Haiyun.Allelopathy of Koelreuteria bipinnata Franch.var. integrifoliola T.Chen Leaf Aqueous Extracts on the Seedling Growth of Lolium perenne[J].Northern Horticulture,2017,41(02):71-75.[doi:10.11937/bfyy.201702017]
栾树叶片水浸提液对黑麦草幼苗生长的化感作用
- Title:
- Allelopathy of Koelreuteria bipinnata Franch.var. integrifoliola T.Chen Leaf Aqueous Extracts on the Seedling Growth of Lolium perenne
- Keywords:
- Koelreuteria bipinnata Franch.var. integrifoliola T.Chen; mineral elements; root morphology; allelopathy; Lolium perenne
- 文献标志码:
- A
- 摘要:
- 以栾树叶片为试材，通过温室盆栽试验，研究了栾树叶片不同浓度水浸液（0.00、12.50、25.00、50.00、100.00 mg?mL-1）对黑麦草苗期生物量、根系形态参数以及养分吸收的影响，以期探讨栾树对黑麦草幼苗生长的化感效应。结果表明：与对照相比，栾树叶片水浸提液显著降低黑麦草幼苗干质量；黑麦草幼苗根系形态参数中的总根长、根表面积和根系体积，以及不同径级（除直径>1.0 mm）的根长和根表面积都随水浸液浓度的升高而减小；水浸液浓度越高，对黑麦草幼苗N、K、Cu、Fe、Mn、Zn养分吸收的抑制作用越强。栾树叶片水浸液对黑麦草幼苗的生长有明显的化感抑制作用，且处理浓度越高，抑制作用越强。
- Abstract:
- Koelreuteria bipinnata Franch.var. integrifoliola T.Chen leaves were used as test material,the effect of different concentrations (0.00,12.50,25.00,50.00,100.00 mg?mL-1) leaf aqueous extracts on Lolium perenne seedling biomass production,root morphological parameters and nutrient uptake were studied through the greenhouse pot experiment,to discuss the allelopathic effects of Koelreuteria bipinnata Franch.var. integrifoliola T.Chen leaf aqueous extracts on the Lolium perenne seedlings.The results showed that the dry weight of Lolium perenne seedlings was remarkably decreased by the Koelreuteria bipinnata Franch.var. integrifoliola T.Chen leaf aqueous extracts.The root morphology parameters of Lolium perenne seedling,total root length,root surface area,root volume,and root length and root surface in different diameter ranges (except root diameter>1.0 mm ) were decreased with the aqueous extracts concentration increasing.The higher concentration of water extractions from Koelreuteria bipinnata Franch.var. integrifoliola T.Chen leaves,the stronger inhibition on N,K,Cu,Fe,Mn,Zn nutrient absorption of the Lolium perenne seedlings.Koelreuteria bipinnata Franch.var. integrifoliola T.Chen leaf aqueous extracts showed obvious allelopathic inhibition on the growth of Lolium perenne seedlings,and the higher concentration was,the higher degree of the repression.
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备注/Memo
第一作者简介：张霞（1982-），女，硕士研究生，研究方向为园林植物种质资源研究及应用。E-mail：zhangxiahnml@163.com.责任作者：李海云（1974-），女，博士，副教授，研究方向为园林植物种质资源应用。E-mail：lhy@lcu.edu.cn.