Effects of light intensity on physiological and biochemical characteristics of Chrysanthemum morifolium at vegetative stage.
- Author:
Qiaosheng GUO
1
;
Yanru WANG
;
Xianxiu ZHANG
;
Miao JIN
Author Information
- Publication Type:Journal Article
- MeSH: Catalase; metabolism; Chrysanthemum; physiology; Light; Lipid Peroxidation; Superoxide Dismutase; metabolism
- From: China Journal of Chinese Materia Medica 2010;35(5):561-564
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo study the effect of light intensity on physiological and biochemical characteristics of Chrysanthemum morifolium at the vegetative stage.
METHODThe dynamic response of physiological and biochemical indexes of Ch. morifolium were measured under different treatments (100%, 80%, 60%, 40% and 20% of the full sunlight) at the vegetative stage.
RESULTThe physiological and biochemical indexes of Ch. morifolium showed dynamic changes with the progress of growth and the increase of the treatment time. The soluble sugar content decreased when the light intensity reduced, and had a significant positive correlation with the light intensity. Soluble protein content rose firstly and fell later, malondialdehyde content increased, superoxide dismutase and catalase activity decreased initially and increased afterwards.
CONCLUSIONProper shading benefits the nitrogen accumulation of Ch. morifolium at the vegetative stage, and reduces the strength of stress condition. The suitable light environment for growth of Ch. morifolium at the vegetative stage is about 80%-60% of full sunlight and the optimum treatment time is 20-40 days.
