[" 12.Gibberellin was first extracted from - "IBA],[" (a) Gibberella fujikuroi (b) algae "],[" (c) bacteria "],[" 13.Dwarfness can be controlled by treating the plant with- "]

Genetic Dwarfness can be controlled by treating plants with

Assertion : Gibberellin was first extracted from fungi. Reason: Gibberella fujikuroi is a fungus.

Gibberellin was first discovered from (a) algae (b) fungi (c) bacteria (d) roots of higher plants

Gibberellin was first discovered from (a) algae (b) fungi (c) bacteria (d) roots of higher plants

Gibberellin was first discovered from (a) algae (b) fungi (c) bacteria (d) roots of higher plants

The material A is fossil fuel which is extracted from the earth. It is said to be formed from the buried , large land plants by a very slow process B. When A is heated in the absence of air in a process called C, then it gives three products D, E, and F. The product D is used as a reducing agent in the extraction of metals the product E is used as an industrial fuel whereas the product F has been traditionally used for metalling the roads . c) Name the processes (i) B and (ii) C.

Which of the following statements are correct? 1.Gibberellins can substitute light treat- ment 2. Gibberellins increase the yield of malt from barley grains in the brewing industry 3. Gibberellins favour flowering in long day plants 4. Gibberellins induce flowering in short day plants Select the correct answer using the codes given below

Which of the following statements are correct? 1.Gibberellins can substitute light treat- ment 2. Gibberellins increase the yield of malt from barley grains in the brewing industry 3. Gibberellins favour flowering in long day plants 4. Gibberellins induce flowering in short day plants Select the correct answer using the codes given below

Gibberellins were first discovered in japan when rice plants were suffering from bakeane (the foolish seedling disease) caused by a fungus Gibberella fujikuroi . (a) Give two functions of this phytohormone (b) which property of gibberellin caused foolish seedling disease in rice ?