Abstract
ABSTRACTAlthough silicon (Si) is the second most abundant element of the earth's crust and in soils, it is not listed among the essential elements for plants. However, the beneficial role of Si in stimulating the growth and development of many plant species has been recognized. This study investigated the effects of in vitro application of nanosilicon oxide on growth and proliferation of apple rootstock MM106 in tissue culture. The experiment included five levels nanosilicon oxide (0, 25, 50, 100, and 200 mg/L) added to Murashige and Skoog medium. The results showed that using nanosilicon increased in fresh and dry weights, length and number of branches, and chlorophyll in explants with the highest increase being at 100 mg/L. Growth suppression occurred at 200 mg/L. This investigation showed that 100 mg/L silicon oxide can be added to Murashige and Skoog medium for fast growth and proliferation of MM106 apple rootstock explants.
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