УДК |
Аннотация: European larch from different geographycal regions of its natural range of distribution varies in seed weight. These differences in seed weight are rather distinct, despite the fact that they have been found - as far as can be judged from the publication. The empty seeds, which usually have about 70 per cent of the weight of filled seeds, can influenece the thousand grain weight differently, depending upon the extent to which they occur in samples. However, it is rather difficult to separate empty and filled seeds of larch, owing to the small difference in their weight. For commercial separation of larch seed, special equipment has been constructed
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