Astragalus membranaceus var.mongholicus is a leguminous perennial herb with a variety of re-search values.In order to explore the differences in the indexes of different leaf colors and leaf types of Astraga-lus membranaceus var.mongholicus,6 common leaf colors and leaf shapes in the field were selected to analyze the morphological indexes such as leaf color,compound leaf,leaflet and chlorophyll.The results showed that leaf color was significant positive correlatied to chlorophyll content,while it was significant negative correlated with the number of small leaves.The total chlorophyll content of dark green leaves was the highest,which was 4.07 mg/g,with the least number of small leaves,which was 34 leaf phenotype was closely related to leaf number,leaf area and chlorophyll content.It provided a theoretical basis for further study on the relationship a-mong leaf morphology,yield and quality,improving the yield and quality of Astragalus membranaceus var.mong-holicus,exploration of forage value of its plants and cultivation of excellent germplasm.
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