|Table of Contents|

Physiological Response of Oat Seedlings to PEG Stress at Germination Stage(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年21
Page:
24-30
Research Field:
Publishing date:

Info

Title:
Physiological Response of Oat Seedlings to PEG Stress at Germination Stage
Author(s):
ZHANG Yujun1; ZHAO Lili1; CHEN Chao1; WANG Puchang2; LI Jiwei3
1.College of Animal Science,Guizhou University,Guiyang,Guizhou 550025；2.Guizhou Provincial Institute of Prataculture,Guiyang,Guizhou 550025;3.Beijing Source of Green Animal Husbandry Science and Technology Development Co.Ltd.,Peking 100010
Keywords:
oat; drought stress; physiological index; GGE-biplot
PACS:
-
DOI:
10.11937/bfyy.20171463
Abstract:
In order to investigate the physiological and biochemical effects of different drought stress on Oat seedlings.To explore the mechanism of physiological response of oat seedlings to PEG stress at germination-stage,six oat varieties (Anena sativa L.) were subjected to different drought stress simulated by PEG.The results showed that the MDA content of seedlings of different oat varieties with PEG stress intensity increased the accumulation of cell membrane damage gradually increased;antioxidant enzyme activity and soluble protein content increased at low concentration stress,maintain the osmotic potential of cells,protect the cell membrane from injury,high stress concentration showed inhibitory effect and physiological serious destruction;combined with GGE-biplot,found that different oat varieties to adapt to the role of PEG-6000 stress physiological indicators are different:‘Sweet early oat’ was regulated by SOD;‘Ota oat’ and ‘Qinghai 444 oat’ were regulated by SP and MDA;‘Sweet Yan No.1’ was regulated by POD,CAT.The osmotic stress environment of -0.4 MPa had good regional component and representativeness,which could be used as the best stress intensity of oat production and the concentration of excellent oat varieties.

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Last Update: 2017-11-13