Physiological Responses for Maize (Zea mays L.) Growing Under Effects of Some Environmental Stresses

Mahdi Saleh, Shakir; Aid Yousif, Muna

	Physiological Responses for Maize (Zea mays L.) Growing Under Effects of Some Environmental Stresses
Journal of Tikrit University For Agriculture Sciences
Article 1, Volume 18, Issue 3, 2018, Pages 1-10
Authors
Shakir Mahdi Saleh; Muna Aid Yousif
Abstract
The study included two separate practical tests. The first one was conducted in laboratory and the second in pots. These experiments aimed to investigate the influence of three concentrations of sodium chloride (0, 50 and 100Mu), with three irrigation periods : continuous irrigation, once every four days and once every six days on physiological characters for maize plant after six weeks of seeds germination. The increasing concentrations of sodium chloride and irrigation periods led to a significant decrease in most of the studied features of the plants while they led to increase of the Proline concentration in the plant’s leaves and the percentage of cell membrane damage in comparison with the treatment’s control . The highest and the lowest value of Proline was in the irrigation every six days and the treatment’s control (41.85 , 5.91 micro mol. gr-1) respectively. While concerning cell membrane damage in the concentrations of (100 Mu) of sodium chloride reached its highest value which was( 60.48 )and its lowest value (21.10) in the comparison treatment. The combination of salt at (100 Mu) and irrigation every six days was the most negatively effective in all physiological parameters.
Keywords
Zea mays L; Salt Stress; water stress

Statistics Article View: 131 PDF Download: 54