What is the causes of abnormal wood (CW/TW)?
Correct answer: D. All of the above
- A. To Evarts and Mason (106) it is due to gravity
- B. Metzger (1908) says it is due to tension and compression
- C. Wersking and Baily, due to (1942) increase or decrease in plant hormones
- D. All of the above
- E. Philips says (1940), it is due to wind
Explanation
Proposed explanations for compression and tension wood include gravitational or positional effects, mechanical tension and compression, hormonal changes, and wind stress. The question attributes all these causes to different researchers, making ‘all of the above’ the intended answer.
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