Changes of the Relative Conductivity and MDA in Malus robusta Rehd Under Drought Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Changes of the Relative Conductivity and MDA in Malus robusta Rehd Under Drought Stress

Author(s):: DANG Yun-ping; LI Chun-xia; Yan’an Vocational and Technical College，Yan’an，Shaanxi 716000

Keywords:: drought stress; Malus robusta Rehd; the relative conductivity; MDA

Abstract:: Taking Malus robusta Rehd seedling as material，treated in potted cultural condition under 45%~50% moderate water stress，the relationship between the resistant drought ability and changes traits of the relative conductivity and MDA were studied.The results showed that the relative conductivity and MDA increased constantly with water stress getting longer and longer，however，the relative conductivity changed slowly in the first 4 days，and 5 days started to increased significantly；MDA changed slowly in the first 5 days，and 5 days later started to increased significantly.At the beginning，Malus robusta Rehd seedling was able to resist a certain extent drought stress，when more than a certain intensity，a large number of cells died，plant suffered severe damage and death.

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Last Update: 2014-09-01