Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (7): 35-40.doi: 10.11924/j.issn.1000-6850.casb2021-0936

Special Issue: 生物技术

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Effects of Exogenous Selenium on Growth and Physiology of Phaseolus vulgaris Seedlings Under 60Co-γ Radiation

GAO Meng(), ZHANG Dongye, FENG Guojun, YANG Xiaoxu, LIU Chang, YAN Zhishan, LIU Dajun()   

  1. College of Modern Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080
  • Received:2021-09-30 Revised:2022-01-24 Online:2022-03-05 Published:2022-04-13
  • Contact: LIU Dajun E-mail:gm809969691@163.com;jianlongedu@163.com

Abstract:

To explore the effects of exogenous selenium (Se) on the growth and physiology of Phaseolus vulgaris seedlings under 60Co-γ radiation, P. vulgaris varieties ‘13-6-1-2’ and ‘Ziguan’ were used as experimental materials in this study. Through 50 μg/mL Na2SeO3 spray treatment, the effects of exogenous Se on the phenotype, antioxidant enzyme activities (POD, SOD, CAT), and malondialdehyde (MDA), chlorophyll and Se content of P. vulgaris under 60Co-γ radiation (120 Gy) were detected and analyzed. The results showed that exogenous Se significantly increased the Se content, the activities of POD, SOD, CAT, and the content of MDA and chlorophyll in P. vulgaris seedlings under60Co-γ radiation. The results demonstrated that leaf spraying of exogenous Se with appropriate concentration could promote the growth and development of P. vulgaris, improve its Se content and antioxidant capacity, and alleviate the effects of60Co-γ radiation on the growth of P. vulgaris seedlings.

Key words: Phaseolus vulgaris, Na2SeO3, 60Co-γ radiation, physiological characteristics, biochemical characteristics

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