|Table of Contents|

Correlation Analysis and Physiological Characteristics of Pennisetum sp.Under Drought Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年02
Page:
129-133
Research Field:
Publishing date:

Info

Title:
Correlation Analysis and Physiological Characteristics of Pennisetum sp.Under Drought Stress
Author(s):
XIE Chang-hai1; 2; WANG Pei-dan1; 2; LIU Yan-ling1; 2; LIN Xing-sheng1; 2; LIN Dong-mei1; 2; LIN Zhan-xi1; 2
（1.School of Life Science，Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002;2.China National Engineering Research Center of Juncao Technology，Fuzhou,Fujian 350002)
Keywords:
PEG-6000; Pennisetum sp.; physiological characteristic
PACS:
-
DOI:
10.11937/bfyy.201502037
Abstract:
To provide the academic basis of Pennisetum sp.application and popularization,and to analyzing drought resistame,physiological characteristics of Pennisetum sp.were studied under drought stress simulated by different concentration of PEG 6000.The results showed that,by the increase of stress level，the contents of soluble protein and chlorophyll decreased continuously，showing an obvious negative correlation with PEG stress；the content of soluble polysaccharide increased gradually；while the content of MDA or POD activity increased firstly and then decreased，the contents of proline and SOD activity decreased at beginning and then increased.Data of these five characters showed a significant positive correlation with PEG stress；the CAT activity increased firstly and then decreased，showing an insignificant positive correlation with PEG stress.These results indicate that Pennisetum sp.seedlings could stand less than the concentration of 200 g/L PEG and had a certain degree of drought tolerance.The interaction of three kinds of enzyme and osmatic adjustment substance (water soluble polysaccharide and proline) could be automatically managed to avoid the damage from water drought，which may induce potential ability of Pennisetum sp. against drought conditions.More than the concentration of 200 g/L PEG could bring Pennisetum sp.seedlings severe drought stress and even death.

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Last Update: 2015-02-25