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highly sensitive fluorescent method. Alternatively, photosynthetic apparatus activity was measured
using the fluorescent method, and it was used to assess the degree of pest infestation of the plant,
especially mites, and to determine the plant’s resistance after red light treatment. When damaged by
mites, the long-wave native forms of cotton chlorophyll are disrupted and the electron-transport
chain of the photosynthetic apparatus is blocked. As a result of QN treatment of seeds, the
distribution of algae in plants decreases, while the activity of photosynthetic apparatus, on the
contrary, increases. This means that phyto-chrome photo conversion has a specific effect on the
photosynthetic apparatus.
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