A) Gibberellins
B) Cyrokinin
C) Auxins
D) Lthylene
Correct Answer: A
Solution :
Gibberellins are plant hormones which are first isolated from a fungus Gibberella fujikuroi. They induces flowering in long-day plants in short day conditions. Auxins are plant hormones which are responsible for pnototropic and geou-opic movements eg. IAA. Cytokinins are amino-purine derivates, which promotes cell division in plants. Ethylene is a gaseous plant hormone which I responsible for fruit ripening.
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