Record ID No. |
956 |
Author(s) |
Woitke,M., Schnitzler,W.H , 2005 |
Affiliation |
Center of Life Science Weihenstephan, Technische Universitat Munchen, Chair of Vegetable Science - Quality of Vegetal Foodstuff, Freising, Germany. |
Title |
Biotic stress relief on plants in hydroponic systems |
Source. Vol.(no):Page |
Acta-Horticulturae. (697): 557-565p. |
Categories |
Mycorrhiza General |
Subjects |
Biological Interaction |
Sub-subjects |
Plant growth promoting rhizo bacteria |
Host |
Plants |
Organism |
Rhizobacteria |
Country |
Germany, Europe |
Abstracts |
Soilless cultivation techniques or hydroponic growing systems are designed to provide plants with the best growing conditions in order to achieve optimum yield. But even under these conditions, stress may occur on plants grown in the soil and soilless cultures, although at different extents, in shorter or longer periods, and more severe and pervasive. Stress can be caused by temperature (heat and cold), too much or too little nutrient supply, drought, salinity, pathogens, but also by insufficient or excessive light and oxygen or carbon dioxide. Therefore, the introduction of beneficial microorganisms (BMO) into different growing systems may prevent either prophylactically or moderate stressing situations. The advantage of applying BMO in controlled growing systems such as hydroponics or soilless cultures can improve efficiency and prolonged activity of BMO due to the lack of competition occurring in the soil. The free-living and more loosely attached root bound bacteria of the group of plant growth promoting rhizobacteria are discussed. The other well known symbiosis of plants and rhizobia, the arbuscular mycorrhiza fungi will not discussed here, although both groups are important for biotic stress relief. |