Plant Growth And Development Question 224
Question: Which of the following instrument can be used to record plant growth by seconds i.e. in fraction of a minute [RPMT 1991]
Options:
A) Arc auxanometer
B) Arc indicator
C) Space marker disc
D) Crescograph
Show Answer
Answer:
Correct Answer: D
Solution:
Crescograph is a sensitive devise, devised by J.C.
Bose.
It records primary growth very accurately.
It magnifies growth upto 10,000 times giving information of growth per second.
BETA
