[1]ZENG Miao.Preliminary Research on the Allelopathic Effects of Aqueous Extracts from Caragana korshinskii Leaves on Four Agropyron cristatum[J].Research of Soil and Water Conservation,2016,23(03):321-327.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 03
Page number:
321-327
Column:
Public date:
2016-06-28
- Title:
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Preliminary Research on the Allelopathic Effects of Aqueous Extracts from Caragana korshinskii Leaves on Four Agropyron cristatum
- Author(s):
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ZENG Miao
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Department of Chemistry and Life Science, Aba Teachers College, Wenchuan, Sichuan 623002, China
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- Keywords:
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Caragana korshinskii; leaves; aqueous extracts; Agropyron cristatum; allelopathy
- CLC:
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Q945
- DOI:
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- Abstract:
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In order to ascertain the relationship between Leguminous plant and Gramineous plant, we studied the allelopathic effect of aqueous extracts of Caragana korshinskii leaves on four Agropyron cristatum by adopting indoor biological methods. Bioassay results indicated that the aqueous extracts improved both seed germination and seedling growth of all test Agropyron cristatum at low concentrations (≤0.02 g/ml), whereas they significantly inhibited at high concentrations (≥0.02 g/ml), and the inhibition exhibited concentration dependence. The activities of protective enzymes SOD and POD of four Agropyron cristatum showed ‘N’ shape with the increase of the concentration of aqueous extracts of Caragana korshinskii leaves, and the activities of protective enzymes CAT, MDA, TTC and non-protective enzyme PAL and PPO of four Agropyron cristatum first decreased and then increased with the increase of the concentration of aqueous extracts which showed the ‘V’ shape. The comprehensive analysis showed that the aqueous extracts of Caragana korshinskii leaves had allelopathic effect on Agropyron cristatum normal growth which the sensitive was ranked as the order: Agropyron mongolicum > Agropyron cristatum > Agropyron cristatum×Agropyron desertorum cv. Mengnong > Agropyron desertorum. Agropyron mongolicum was sensitive to the aqueous extracts of Caragana korshinskii leaves.