91. IAA was first isolated from

1. 1. Corn germ oil

   
   
   

   2. Gibberella

   
   
   

   3. Human urine

   
   
   

   4. Rhizopus

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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92. Leaf fall can be prevented with the help of

1. 1. Abcisic acid

   
   
   

   2. Auxins

   
   
   

   3. Florigen

   
   
   

   4. Cyfokinins

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

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93. Different steps in respiration are controlled by

1. 1. Auxins

   
   
   

   2. Sugar

   
   
   

   3. Enzymes

   
   
   

   4. Kinins

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: C

   N/A

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94. Growth in plant occurs

1. 1. Whole life

   
   
   

   2. For definite period

   
   
   

   3. Growth does hot takes place in plant

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: A

   N/A

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95. Which of the following tree require highest amount of water for growth

1. 1. Mango

   
   
   

   2. Babool

   
   
   

   3. Guava

   
   
   

   4. Euclyptus

   
   
   

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1. View Hint View Answer Discuss in Forum

   N/A

   Correct Option: D

   N/A

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