GE Hong-lian,ZHANG Fu-li,LI Li-li.Effects of Composite Photosynthetic Bacteria PS11 on Physiological-biochemical Characteristics and Rhizosphere Soil Enzyme Activities of Soybean Seedling[J].Soybean Science,2014,33(05):713-717.[doi:10.11861/j.issn.1000-9841.2014.05.0713]
复合光合菌剂对大豆幼苗生理生化特性和根际土壤酶活性的影响
- Title:
- Effects of Composite Photosynthetic Bacteria PS11 on Physiological-biochemical Characteristics and Rhizosphere Soil Enzyme Activities of Soybean Seedling
- 文章编号:
- 1000-9841.2014.05.0713
- Keywords:
- Composite photosynthetic bacteria; Soybean; Root activity; Soil enzyme; Physiological and biochemical characters
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 采用106,107,108,109,101CFU.mL-15种浓度复合光合菌剂PS11灌根处理大豆幼苗,研究不同浓度复合光合菌剂PS11对大豆生理生化指标和土壤酶活性的影响。结果表明:与对照相比,106~109CFU.mL-1浓度的PS11可显著提高大豆幼苗光合色素含量,增强叶片的光合能力,增加生物量及根系活力,激活大豆幼苗抗氧化酶和土壤酶活性;随着菌液浓度的升高,PS11对大豆的促生效果及对土壤酶活性的激活作用减弱,菌液浓度1010CFU.mL-1时大豆根系活力、类胡萝卜素的含量显著低于对照;复合光合菌剂PS11浓度为107~108CFU.mL-1时对大豆幼苗和根际土壤酶活性多项指标增效作用明显。
- Abstract:
- Abstract: Soybean seedling were treated with 106,l07,108,109?and 1010CFU.mL-1composite photosynthetic bacteria PS11 by root irrigation to study the effect on physiological and biochemical characters of soybean seedling and its rhizosphere soil enzyme activities.The results showed that compared to the control,root irrigation treatment with 106-109CFU.mL-1PS11 significantly increased photosynthetic pigment contents of soybean leaves,enhanced photosynthetic capacity of soybean leaves,and improved plant biomass and root activity.Meanwhile,root irrigation treatment with PS11 activated the activities of antioxidant enzyme of soybean seedlings.In addition,PS11 treatment significantly improved activities of rhizosphere soil enzyme.With PS11 concentration reached to 1010CFU.mL-1,the growth-promoting effect to soybean seedling and activation to soil enzyme were weakened,and the root activity and carotin content were much lower than the control.The promotion effect of 107-108CFU.mL-1-PS11 was the most significant compared to the control.In conclusion,PS11 concentration of 107-108CFU.mL-1was the best for soybean growth and improving the soil enzyme activities by considering comprehensively the influences of different concentrations.
参考文献/References:
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备注/Memo
基金项目:河南省科技计划(132300410032);河南省教育厅科学技术重点资助项目(2006210010,13B180271)。