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2023, Vol: 19, Issue: 2
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Original Research 


PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady.

Abstract
The possible protective effect of selenium (Se) on canola plants (Brassica napus L.) subjected to salt stress was studied by investigating plant growth, yield and changes in photosynthetic pigments, carbohydrate, proline, certain mineral ions content, activities of some antioxidant enzymes of canola plants and fatty acid composition of the yielded seeds. For this purpose canola plants were irrigated with different levels of saline solution (0, 2000, 4000, and 6000 mg L-1, prepared according to Stroganov equation, 1962), then the effect of different dosage of Se (0, 2.5, 5, or 10 mg L-1 selenium as sodium selenate) were examined as foliar spray on 50 and 65 – days old plants. Then samples were collected for analysis as 72 – days old plants. Salinity led to significant inhibition in plant growth, yield components, photosynthetic pigment contents, quantity and quality of seed oil. The detected inhibition was directly related to the applied concentrations of salt. Se applied alone or in combination with salt treatment significantly increased plant growth, yield, photosynthetic pigment content and improved the quality of canola oil. The most effective concentration of Se was 5 mg L-1. In addition, Se-treated plants exhibited various defense mechanisms to cope with salt stress including increased endogenous proline content, enhanced catalase activity and increased magnesium and phosphorus ion contents.

Key words: Brassica napus, Fatty acids; Growth, Reactive oxygen species (ROS), Selenium, Yield


 
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Pubmed Style

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady. PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS. Egypt. J. Exp. Biol. (Bot.). 2013; 9(2): 199-211.

Web Style

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady. PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS. https://www.egyseb.net//?mno=186652 [Access: December 05, 2023].

AMA (American Medical Association) Style

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady. PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS. Egypt. J. Exp. Biol. (Bot.). 2013; 9(2): 199-211.


Vancouver/ICMJE Style

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady. PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS. Egypt. J. Exp. Biol. (Bot.). (2013), [cited December 05, 2023]; 9(2): 199-211.


Harvard Style

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady (2013) PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS. Egypt. J. Exp. Biol. (Bot.), 9 (2), 199-211.


Turabian Style

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady. 2013. PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS. THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 9 (2), 199-211.


Chicago Style

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady. "PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 9 (2013), 199-211.


MLA (The Modern Language Association) Style

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady. "PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS." THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany) 9.2 (2013), 199-211. Print.


APA (American Psychological Association) Style

Hanan A. Hashem Raifa A. Hassanein Mohamed A. Bekheta Fatma A. El-Kady (2013) PROTECTIVE ROLE OF SELENIUM IN CANOLA (BRASSICA NAPUS L.) PLANT SUBJECTED TO SALT STRESS. THE EGYPTIAN JOURNAL OF EXPERIMENTAL BIOLOGY (Botany), 9 (2), 199-211.


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