Effects of PEG-6000 simulated drought stress on physiological indexes of winter rye

doi:10.16178/j.issn.0528-9017.20230210

Abstract

Abstract:

In order to investigate the effects of drought stress on the growth and physiological indexes of winter rye (Secale cereale L.), the hydroponic Russian winter rye BK01 was simulated by using 15% PEG 6000 (PEG-6000). The physiological indexes of leaves under different stress conditions were determined at 0 (CK), 3, 6, 9, 12 and 24 h, respectively. The results showed that the contents of proline and malondialdehyde in winter rye leaves increased with the prolonging of stress time. The activities of catalase, peroxidase, superoxide dismutase, soluble protein and soluble sugar increased first and then decreased. The relative water content showed a decreasing trend. This study will provide a new theoretical basis for the research progress of drought resistance of winter rye.

Key words: winter rye (Secale cereale L.), drought stress, physiological index

CLC Number:

S512.5

Wurlig, DENG Yu, SUN Moke. Effects of PEG-6000 simulated drought stress on physiological indexes of winter rye[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(4): 894-899.

Figures/Tables 8

Fig.1 Effects of drought stress on RWC content of winter rye leaves

Fig.2 Effects of drought stress on MDA content of winter rye leaves

Fig.3 Effects of drought stress on soluble sugar content in winter rye leaves

Fig.4 Effects of drought stress on soluble protein content in winter rye leaves

Fig.5 Effects of drought stress on proline content in winter rye leaves

Fig.6 Effect of drought stress on CAT activity in winter rye leaves

Fig.7 Effect of drought stress on POD activity in winter rye leaves

Fig.8 Effect of drought stress on SOD activity in winter rye leaves

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