Journal of Northern Agriculture ›› 2022, Vol. 50 ›› Issue (1): 44-51.doi: 10.12190/j.issn.2096-1197.2022.01.06

• Soil and fertilizer・Physiology and biochemistry • Previous Articles     Next Articles

Effects of different nutrient solution concentration on seedling growth and its medicinal components of Astragalus mongholicus Bunge

WANG Xian1, CUI Shimao1,2, SONG Yang1,2, PAN Lu1,2, GUO Huaihuai3   

  1. 1. College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot 010011,China;
    2. Inner Mongolia Protected Horticulture Engineering Technology Research Center,Hohhot 010011,China;
    3. College of Agriculture,Inner Mongolia Agricultural University,Hohhot 010019,China
  • Received:2021-12-09 Online:2022-02-20 Published:2022-04-11

Abstract: 【Objective】 To investigate the effects of different nutrient solution concentration on Astragalus mongholicus Bunge seedling growth and its medicinal components in order to provide reference for nutrient solution seedling raising of Astragalus mongholicus Bunge.【Methods】 Astragalus mongholicus Bunge were grown on four nutrient solutions,garden soil(CK),standard concentration Hoagland and Aron general nutrient solution(Y1),half of the standard concentration Hoagland and Aron general nutrient solution(Y2),and 1/3 of standard concentration Hoagland and Aron general nutrient solution(Y3). The growth morphological indicators,physiological indexes,and medicinal components of the plants were analyzed.【Results】Y1 treatment improved the plant height,main root length,branch number,stem diameter,basal part of stem diameter,and main root diameter of Astragalus mongholicus Bunge seedlings when compared to other treatments. Compare with the CK,Y1 treatment significantly(P<0.05)increased the chlorophyll content and root activity in Astragalus mongholicus Bunge seedlings, significantly (P<0.05) decreased the content of free amino acids in roots,and significantly (P<0.05) increased the content of total flavonoids in seedling roots 70 to 77 days after emergence,as well as the total polysaccharides in seedling roots 49 to 77 days after emergence.【Conclusion】Raising Astragalus mongholicus Bunge seedlings in Hoagland and Aron general nutrient solution at a standard concentration boosted seedling growth as well as total flavonoids and polysaccharide accumulation.

Key words: Nutrient solution, Astragalus mongholicus Bunge, Seedling, Growth, Total flavonoids, Total polysaccharides

CLC Number: 

  • S567.239