|Table of Contents|

Study on Physiological Characteristics of Drought Tolerance in Sandy Wild Vegetable Allium mongolicum from Inner Mongolia(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年03
Page:
16-19
Research Field:
Publishing date:

Info

Title:
Study on Physiological Characteristics of Drought Tolerance in Sandy Wild Vegetable Allium mongolicum from Inner Mongolia
Author(s):
WANG Guo-ze; GAO Ning; CUI Xiu-qi; CHENG Cheng; LI Bo-hua; JIA Jin
（School of Methematics，Physics and Biological Engineering，Inner Mongolia University of Science and Technology，Baotou，Inner Mongolia 014010）
Keywords:
physiological characteristics; sandy wild vegetable; A.mongolicum
PACS:
-
DOI:
10.11937/bfyy.201503005
Abstract:
Desertification in the world is very serious.Governing soil desertification has important strategic significance for the sustainable development of the global economy. Allium mongolicum Regel is an important sandy wild vegetable，and studying its drought tolerance mechanism is of great significance in elucidating plant drought tolerance mechanism.Under drought stress，the osmotic balance of plant cells is destroyed and related physiological indexes change.Using different soil water content and different PEG-6000 concentrations to simulated drought， A.mongolicum was selected as the material，physiological indexes related to drought tolerance were measured，and the physiological mechanisms of drought tolerance were studied.The free proline content，malondialdehyde content，relative water content，plant cell membrane permeability as well as POD activity of A.mongolicum under drought stress were measured.The results showed that with droughts increasing，free proline and MDA contents increased overall，while with PEG increasing，MDA contents increased initially and then decreased，free proline increased firstly，then decreased，increased again，decreased lastly.Relative water content decline gradually，membrane permeability increased，while the POD activity increased initially and then decreased.The results will lay the foundation for clarifying the physiological mechanism of drought tolerance in A.mongolicum under drought stress.

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Last Update: 2015-02-28