Which statement about the soda bottle effect is true?

Which statement about the soda bottle effect is true?

• A. It is a symptom of root rot at the base.
• B. It occurs only in young trees.
• C. It indicates insect galleries through cambial zone.
• D. It is a bulge near the base not considered a veneer defect.

Answer: (D)

The soda bottle effect is a bottle-like bulge near the base of a tree stem, giving a wider lower portion with a narrower upper section. This is a growth form, not a disease or pest symptom. It doesn’t arise from root rot, nor does it indicate insect galleries through the cambial zone. It can occur in trees of various ages, and in veneer grading it isn’t treated as a veneer defect because veneer quality assessments focus on surface flaws that affect peeling and surface appearance. A base bulge is considered a natural growth feature rather than a flaw that disqualifies veneer, so the statement that it’s a bulge near the base not considered a veneer defect is the correct one.

The soda bottle effect is a bottle-like bulge near the base of a tree stem, giving a wider lower portion with a narrower upper section. This is a growth form, not a disease or pest symptom. It doesn’t arise from root rot, nor does it indicate insect galleries through the cambial zone. It can occur in trees of various ages, and in veneer grading it isn’t treated as a veneer defect because veneer quality assessments focus on surface flaws that affect peeling and surface appearance. A base bulge is considered a natural growth feature rather than a flaw that disqualifies veneer, so the statement that it’s a bulge near the base not considered a veneer defect is the correct one.