Abstract:
Cadmium (Cd) is one of the major heavy metal pollutants in the environment and imposes severe limitations on crop growth and production. Stress-protective osmolytes stabilize biomolecules and mediate plant defense responses, which help to remove the negative effects of stress in plants. Maize is considered to be the 3rd very significant cereal crop after wheat and rice and has been facing various challenges. The present investigation was conducted to assess the ameliorative effects of foliar-applied trehalose on growth, photosynthetic attributes, biochemical, and physiological and oxidative defense mechanism in two maize cultivars (FH-1046 and FH-5724) under Cd stress. A pot experiment was carried out in the Botanical garden of the University of Education Lahore, Faisalabad campus with three replicates. Pre-sowing treatment of seeds with trehalose (50mM) was carried out, and seeds were allowed to germinate. After germination, seeds were shifted into pots. After two weeks, growth parameters, biochemical and Cd concentration were examined. Findings of above study revealed that Cd stress significantly reduced the growth, photosynthetic efficiency and biochemical characteristics of two maize cultivars. However, the seeds treated with trehalose solution significantly reduce the impact of Cd stress. Moreover, it also enhances photosynthetic activity, enzymatic activities and decreased the (ROS) reactive oxygen species. So, it was concluded that presowing treatment of trehalose significantly improve the seed tolerance under Cd stress.
Page(s):
131-131
DOI:
DOI not available
Published:
Journal: Abstract Book on Second International Conference on Recent Approaches in Plant Sciences (RAPS-23) 4-5 May 2023 , Volume: 0, Issue: 0, Year: 2023
Keywords:
maize
,
Trehalose
,
Presowing Treatment
,
Cd stress