Physiological response of new strains of Festuca arundinacea mutated in space under high temperature stress and comprehensively evaluated

doi:10.11686/cyxb2016157

Abstract

Abstract: The influence of high temperature stress on the eco-physiological characteristics of 11 Festuca arundinacea was studied in a pot experiment for 4 days. Physiological and biochemical indexes, including soluble protein content, superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activity, were measured and analyzed. Subordinate function and grey correlative analyses were used to comprehensively evaluate the 11 F. arundinacea materials under high temperature stress. The results showed that the content of soluble protein decreased, while SOD, POD and CAT contents showed an upward trend. The high temperature resistance of the 11 F. arundinacea was obtained by subordinate function. The resistance order is: SP5-85>SP5-60>SP5-71>SP5-42>SP5-94>SP5-7>SP5-88>F. arundinacea cv Shuicheng>SP5-5>SP5-89=F. arundinacea cv Qiancao No.1. The high resistance correlative order obtained by grey correlative analysis is SOD>CAT>POD>content of soluble protein.

LI Juan, LEI Xia, ZHONG Li, WANG Xiao-Li, YANG Chun-Yan, WU Jia-Hai. Physiological response of new strains of Festuca arundinacea mutated in space under high temperature stress and comprehensively evaluated[J]. Acta Prataculturae Sinica, 2017, 26(3): 121-131.

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