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Biology
Kogi and Haggen Smit (1931) isolated which plant growth regulator from human urine :
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Q. Kogi and Haggen Smit $(1931)$ isolated which plant growth regulator from human urine :
Haryana PMT
Haryana PMT 2001
A
ethylene
B
auxins
C
gibberellins
D
ABA
Solution:
Correct answer is (b) auxins