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How is artificial supplementary pollination carried out for dawn redwood (Metasequoia glyptostroboides)?
The artificial supplementary pollination method for dawn redwood (Metasequoia glyptostroboides) is: the dawn redwood has unisexual flowers and is monoecious; when the male cones turn from green to yellow, select individual trees that are robust and bear many inflorescences, pick inflorescences with branches and cultivate them indoors to collect pollen. Cut the flowering branches into lengths of about 20 cm, whittle the base into a straight cross-sectional cut, tie every 20 to 30 branches into 1 bundle, align the bases of the branches, attach 1 ball of absorbent cotton soaked in nutrient solution to the cut surface of the branches, wrap the outside of the cotton ball with plastic film (to prevent the nutrient solution from evaporating), hang the bundled inflorescences indoors, lay white glossy
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