Journal of Northern Agriculture ›› 2019, Vol. 47 ›› Issue (4): 15-21.doi: 10.3969/j.issn.2096-1197.2019.04.03

• Germplasm resources·Physiology and biochemistry·Molecular biology • Previous Articles     Next Articles

Effect of different supplying levels of Zn on the growth and Zn accumulation of different varieties of oats

SUN Yannan, QI Bingjie, HE Xin, WANG Min, LIU Jinghui   

  1. College of Agronomy,Inner Mongolia Agricultural University,Hohhot 010019,China
  • Received:2019-07-02 Online:2019-08-20 Published:2019-12-10

Abstract: To reveal the physiological mechanism of Zn efficient oats.The growth and Zn accumulation of four oats varieties under different levels of Zn with were studied in solution culture.The result indicated that the Zn efficient oats varieties can be selected when Zn level was 10-8 mol/L at seedling stage.Four Zn levels (0,10-9,10-8,10-7 mol/L) have obvious effect on the growth of shoot,and no significant effect on root.The Zn efficiency coefficient in seedling stage of four oats varieties under low zinc culture was Yanke No.1>Baiyan No.7>Caoyou No.1>Jia 7.Yanke No.1 is Zn efficient oat variety.Jia 7 is Zn low-efficiency oat variety.Baiyan No.7 and Caoyou No.1 are middle sensitivity varieties.The Zn accumulation in roots,shoots and whole plants of Zn efficient oat variety Yanke No.1 had no significant difference between normal Zn supply and low Zn stress.The root-shoot ratio of Zn-efficient oat variety Yanke No.1 under low Zn stress is significantly less than other three oat varieties,but Zn transfer factor is opposite.It indicated that the Zn efficient oat variety is more adaptable to the low Zn stress.

Key words: Oat, Zn level, Growth and development, Zn efficiency

CLC Number: 

  • S512.6