What are kinds of frost injuries?

Utilization of Forest Products Mcqs
BILAL KHATTAK0

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
C.Both (a) & (b)
D.None of these

Related Mcqs:

  1. Frost injuries are:
  2. What are causes of shakes?
  3. Damage caused by fire is / are:
  4. Influence of even-aged and un-even aged groups on the tree (differences) are :
  5. Effect of the tree in pruning is:
  6. Selection thinning is:
  7. Thinnings is:
  8. Injuries by insects is / are :
  9. The kinds of measurements in forest mensuration:
  10. The lowest temperature that can be attained by evaporating water into the air is known as the ________________.

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