[1]CUI Da-lian,MA Yu-xin,SHI Ge,et al.Ecophysiological Responses of Amorpha Fruticosa L. Seeding Leaves to Long-term Drought Gradient Treatment[J].Research of Soil and Water Conservation,2010,17(02):178-181,185.
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Ecophysiological Responses of Amorpha Fruticosa L. Seeding Leaves to Long-term Drought Gradient Treatment
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 02
Page number:
178-181,185
Column:
Public date:
2010-04-20
- Title:
- Ecophysiological Responses of Amorpha Fruticosa L. Seeding Leaves to Long-term Drought Gradient Treatment
- Keywords:
- Amorpha Fruticosa L.; drought gradient; leaf; ecophysiology
- CLC:
- S718.3
- DOI:
- -
- Abstract:
- Changes in some physiological and biochemical indexes of A. fruiticosa L. seeding leaves under long-term different drought gradient treatment was studied by using pot culture 2-year-old A. fruiticosa seeding as experiment materials and adopting the method of weighing the soil to control the water content, four different levels of different drought gradient treatment. The water stresses were the control(CK), light stress(LS), medium stress(MS) and severe stress(SS). The results showed that superoxide dismutase (SOD), peroxidase (POD) activity of A. fruiticosa seedlings in LS, MS, SS were obviously higher than that of group CK, and that with the increase of drought gradient treatment, SOD and POD activity increased. SOD, POD activity in SS were obviously different with LS, MS. SOD and POD activity fluctuated at the beginning of drought treatment and SOD activity decreased and POD activity increased. In the whole water treatment period, LS, MS and SS had higher content of proline and soluble protein than that of CK, and increased with the extension of stress time. The content of proline and soluble protein in SS had obviously differences with LS, MS and that those had no differences in LS and MS. The content of proline decreased and soluble protein increased after treatment 80 days. The soluble sugar had no differences in group of LS, MS, SS. The content of membrane permeability and MDA content was higher than that of CK. The results had obviously differences in group of SS than LS, MS, that there was obvious positive correlation between membrane permeability and MDA content and there was obvious positive correlation MDA content and SOD activity.
- References:
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