3744 x 5616 px | 31,7 x 47,5 cm | 12,5 x 18,7 inches | 300dpi
Aufnahmedatum:
2. März 2015
Weitere Informationen:
Horticultural techniques have been devised for germinating orchid seeds on an artificial nutrient medium, eliminating the requirement of the fungus for germination and greatly aiding the propagation of ornamental orchids. The usual medium for the sowing of orchids in artificial conditions is agar agar gel combined with a carbohydrate energy source. The carbohydrate source can be combinations of discrete sugars or can be derived from other sources such as banana, pineapple, peach or even tomato puree or coconut water. After the preparation of the agar agar medium it is poured into test tubes or jars which are then autoclaved (or cooked in a pressure cooker) to sterilize the medium. After cooking, the medium begins to gel as it cools.
