Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (S1): 133-140. doi: 10.7668/hbnxb.20192921

Special Issue: Oil crops

• Tillage & Cultivation · Physiology & Biochemistry • Previous Articles     Next Articles

Effect of Aspergillus niger on Seed Germination and Seedling Growth of Soybean

WANG Zixuan, WANG Jihua   

  1. College of Science and Technology,Harbin Normal University,Harbin 150500,China
  • Received:2022-05-13 Published:2022-12-28

Abstract:

In order to explore the effect of phosphorus solubilizing and potassium solubilizing fungus Aspergillus niger Z8 on soybean seed germination and seedling growth,the biomass,physiological effects,soil enzyme activity and soil microbial changes of soybean seeds and seedlings after inoculation with Aspergillus niger Z8 were measured.The results showed that Aspergillus niger Z8 had no significant effect on the germination rate of soybean seeds,but could increase the biomass of soybean sprouts,and the overall effect of K3 treatment group was better;when the concentration of bacterial solution was 1.0%,the plant height,fresh weight,dry weight and root length increased,and the content of photosynthetic pigment in soybean seedling leaves was higher.At this time,the cell volume in root tip elongation zone increased,indicating that it had the best growth potential;the results of pot experiment showed that inoculating Aspergillus niger Z8 could significantly increase the plant height(19.44%-33.47%),root length(19.95%-33.50%),fresh weight(26.67%-86.67%),dry weight(25.00%-87.50%),soluble sugar(31.67%-47.83%),soluble protein(21.70%-35.86%).The inoculation of different treatments can increase the chlorophyll (T4>T3>T2>T1>CK), superoxide dismutase (T4>T3>T1>T2>CK),catalase(T4>T3>T2>T1>CK)and peroxidase(T4>T2>T3>T1>CK)were higher than those in the control group. At the same time, soil sucrase (T4>T3>T2>T1>CK), urease(T4>T3>T2>T1>CK),catalase(T4>T2>T3>T1>CK), acid phosphatase activity (T2>T1>T3>T4>CK), neutral phosphatase(T2>T4>T1>T3>CK)and alkaline phosphatase (T4>T3>T2>T1>CK)were increased content.It had a significant promoting effect on the number of soil microorganisms,increasing the number of bacteria by 6.03%-32.66%,fungi by 22.22%-62.22% and actinomycetes by 0.67%-20.32%.In conclusion,T4 treatment group had the best promoting effect on soybean growth.Aspergillus niger Z8 had good promoting function,which can be used as a biological fertilizer for soybean planting,and is of great significance for reducing the application of chemical fertilizer and sustainable agriculture development.

Key words: Soybean, Aspergillus niger, Growth promoting effect, Capsule

Cite this article

WANG Zixuan, WANG Jihua. Effect of Aspergillus niger on Seed Germination and Seedling Growth of Soybean[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(S1): 133-140. doi: 10.7668/hbnxb.20192921.

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