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प्रश्न
A farmer is fed up of weeds in his Wheat farm. Which of the following chemicals he can use to overcome the problem?
विकल्प
IBA
IAA
NAA
2,4 – D
MCQ
रिक्त स्थान भरें
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उत्तर
2,4 – D
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संबंधित प्रश्न
Which of the following is not a plant hormone?
Auxins are abundantly produced in
Stems are
List five plant growth hormones and briefly describe their roles.
Multiple choice question.
Abscisic acid controls ______.
Conversion of nitrates to nitrogen is called ______.
Name the phytohormone related with the given phenomenon.
- Apical dominance
- Bolting of Cabbage
- Artificial ripening of fruit
- Acts as Anti-transpirant by closing stomata
Apical dominance refers to ____________.
Match the following lists and select the correct option.
| List I | List II | ||
| i. | 2,4-D | a. | Promotes senescence and ripening of fruits |
| ii. | ABA | b. | DelaysJeaf senescence |
| iii. | Gibberellins | c. | Increases the length of the sugarcane stem |
| iv. | Ethylene | d. | Kills dicotyledonous weeds without affecting mature monocotyledonous plants |
| e. | Stimulates the closure of stomata |
Antidiuresis is the role of ______ hormone.
