Studies on the shade-endurance capacity of Glycyrrhiza uralensis / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 100-104, 2005.
Article
in Chinese
| WPRIM
| ID: wpr-276639
ABSTRACT
<p><b>OBJECTIVE</b>To study the shade-endurance property of Glycyrrhiza uralensis and provide rationale for the practice of inter-cropping G. uralensis with trees.</p><p><b>METHOD</b>Black shading nets were used to provide five different environments of light intensities (light penetration rates of 100%, 75%, 65%, 50% and 25%, respectively). To assess the shade-endurance capacity of G. uralensis, several aspects were evaluated, including growth characters, physiological and ecological characters, biomass, and chemical contents.</p><p><b>RESULT AND CONCLUSION</b>G. uralensis is a light-favored plant. The growth indices such as plant height, stem diameter, leaves number, root diameter, biomass, and daily average photosynthetic rate (Pn) are highest when light permeation rate is 100%. All these indices decrease when light intensity decreases. However, G. uralensis possesses shade-endurance capacity to some degree; it adapts to the shading environment by increasing the leaf area and chlorophyll contents. Shading has no obvious effect on the absolute light energy utilization rate (Eu) or Fv/Fm ratio. The influence of shading on the chemical contents of G. uralensis is obvious.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Photosynthesis
/
Physiology
/
Plants, Medicinal
/
Sunlight
/
Trees
/
Adaptation, Physiological
/
Chemistry
/
Chlorophyll
/
Plant Roots
/
Plant Leaves
Language:
Chinese
Journal:
China Journal of Chinese Materia Medica
Year:
2005
Type:
Article
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