CSS :: Utilization of Forest Products
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What are kinds of frost injuries?
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[A]. |
Frost rings: are dark brownish lines within the growth rings as a result of injury to the cambium due to the heavy frost | [B]. |
Frost cracks: to the very much low temperature, the cracks appear at the basal portion of old trees
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[C]. |
Both (a) & (b) | [D]. |
None of these |
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