Elaboration the high mechanical strength medium for in vitro cultivation of lilacs under microgravity conditions

In the modern world, outer space is an object of research in various fields of scientific activity. One of these spheres is plant breeding, i.e. cultivation of higher plants, as they are the most promising from the side of use as photosynthetic organisms. The use of nutrient media in which agar-agar, basalt wool, microcellulose can be used as a thickener is considered for plant life support. Also, 1.5 ml of 2-ip hormone was added to all substrates to stimulate plant growth. It was found that using agar-agar as a nutrient thickener in an amount of 15 g/l, allows the best growth and development of plants obtained by microclonal propagation under microgravity conditions. In addition, mechanical tests of nutrient media with agar-agar as a thickener determined the resistance to external factors, because the resulting substrate does not yield to indentation, deformation and fluidity.