草业科学2017，Vol.34Issue(10)：2130-2140,11.DOI:10.11829/j.issn.1001-0629.2017-0189
不同光环境下金边百里香的形态和生理可塑性
Morphological and physiological plasticity of Thymus mongolicus under different light conditions
摘要
Abstract
One-year-old Thymus mongolicus seedlings were used as the test material.They were grown under either natural light (control,CK),or 25,50 and 75％ shading;physiological and morphological indexes of leaves and roots were measured at 0,7,14,24,and 44 d.The study aimed to identify tissue plasticity in T.mongolicus under different illumination conditions so as to provide a theoretical basis for the selection and promotion of aromatic ground cover plants.The results showed that 1) changes in the distribution of dry matter content at 14 d was due to an increase in leaf weight ratio and a reduction in root weight ratio under different light conditions.2) The 50％ light treatment significantly promoted the activity of leaf SOD,increased the content of soluble protein in the root osmotic adjustment substances,inhibited the accumulation of malondialdehyde,and showed strong physiological plasticity.3) T.mongolicus showed greater morphological and physiological plasticity under 50％ light,and significantly different physiological plasticity in leaves and roots in response to environmental changes.关键词
芳香地被/金边百里香/光照处理/形态可塑性/生理可塑性Key words
aromatic ground-cover plant/Thymus mongolicus/light treatment/morphological plasticity/physiological plasticity分类
农业科技引用本文复制引用
李金平,任瑞芬,尹大芳,郭芳,杨秀云..不同光环境下金边百里香的形态和生理可塑性[J].草业科学,2017,34(10):2130-2140,11.基金项目
山西省农业科技攻关项目——山西优势草种驯化培育及产业化开发——山西乡土芳香地被植物选优及扩繁体系构建(20140311013-4) （20140311013-4）
山西省科技成果转化引导专项——绢毛匍匐委陵菜新品种示范及推广(201604D131054) （201604D131054）
