Studies On Effect Of Aluminum Stress On Growth And Nutrient Absorption In 3 Species Cover Plant

Aluminum stress on ground cover plants in southern China caused great impact. Lucky Grass (Reineckia carnea), Ophiopogon (Ophiopogon japonicus), Iris (Iris tectorum Maxim.) is an important plant resource. Plants in the garden or flower cluster environment, street planting or as sparse groundcover, bright green extraction, strong shade tolerance is an important material for landscaping, but the aluminum tolerance of them is rarely reported. In this paper, aluminum stress, of which three ground cover plant morphology, root activity and the relationship between aluminum stress, aluminum stress changes in the absorption of nutrients and performance characteristics, differences in the characteristics of physiological and biochemical changes for breeding stress-resistant aluminum The ground cover provided a theoretical basis.The main conclusions are as follows:1. Different aluminum concentrations on the three kinds of gardening plants showed different degrees of damage, according to leaf fresh weight, dry weight, root damage index by the judge, three kinds of materials to aluminum stress tolerance were:Lucky Grass>Iris> Ophiopogon.2. Aluminum stress on ground cover plant mineral element absorption study shows that:Al treatments iris, lucky grass. Ophiopogon japonicus leaves, Fe, Cu, Zn affected relatively large, Na, Ca, Mg, Mn, N, P, K and other elements of the absorption were less affected.3. By subordinate function of the four kinds of ground cover plants for aluminum tolerance assessment, evaluation results show that the three materials were aluminum tolerance:Iris> Lucky Grass>Ophiopogon.