Document Type : Research Paper
Authors
1 Department, Faculty Of Science, Islamic Azad University Gorgan Branch, Gorgan, Iran
2 Payame Nour University Tehran Central, Tehran, Iran
3 Msc. student, Payame Nour Tehran Central, Tehran, Iran
Abstract
Water deficit is one of the most important factors affecting the growth of plants. In this research, Linum usitatissimum L. seeds were sown in plastic pots containing sand, clay and peat (2: 1: 1). When the third leave was appeared, water stress was done at three levels of control, 1/3 field capacity and 2/3 field capacity for 10 days in three duplication on the basis completely randomized design. The amount of carotenoid, anthocyanin, flavonoid, phenolic compound and proline was measured to study the effect of drought stress on non-enzymatic defense mechanisms. Data were subjected to analysis of variance by SPSS statistical software and means were compared by Duncan's test at p ≤ 0.05 significance level. It is noteworthy to state that proline accumulation in aerial parts of the Linum was more than that of the root. The results showed that the amount of praline, phenolic compound and anthocyanin significantly increased but the amount of flavonoid in 2/3 FC increased and then slightly decreased however it increased as compared with the control. In the current study, the amount of carotenoid in the leaves of Linum significantly decreased.
Keywords
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