This is a preview. Log in through your library . Abstract Direct pollen interactions, as well as interactions mediated by a recipient, can have a remarkable influence on pollen fertilization ability.

Transmission and scanning electron microscopy were used to study the ultrastructure and secretory processes of resin glands on shoot stems of Betula pendula seedlings during seasonal growth. The ...

The ideal tree for the small courtyard or townhouse garden, Young’s birch has an attractive umbrella shape that allows it to fit perfectly at the side of a pond or flower bed. It can also be grown ...

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