Plant Growth and Development MCQ and Answer

In which of the following, rate of growth gradually slows down and comes to steady stage?

In which of the following, rate of growth gradually slows down and comes to steady stage? A. Lag phase B. Log phase C. Exponential phase D. Stationary phase Answer: Stationary phase Plant Growth and Development MCQs and Answers –Set-1 1. Which plant hormone helps in breaking the dormancy of plant? 2. Which hormone is formed in leaves …

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Indefinite growth of plants is due to presence of

Indefinite growth of plants is due to presence of A. Meristemtic cells B. Parenchyma C. Permanent tissue D. Vascular tissue Answer: Meristemtic cells Plant Growth and Development MCQs and Answers –Set-1 1. Which plant hormone helps in breaking the dormancy of plant? 2. Which hormone is formed in leaves and helps in the blooming of the flowers? …

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The part of seed which emerges out first during germination is

The part of seed which emerges out first during germination is A. Radicle B. Plumule C. Root D. Shoot Answer: Radicle Plant Growth and Development MCQs and Answers –Set-1 1. Which plant hormone helps in breaking the dormancy of plant? 2. Which hormone is formed in leaves and helps in the blooming of the flowers? 3. Which plant …

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Which of the following substance acts as natural germination inhibitor?

Which of the following substance acts as natural germination inhibitor? A. Cytokinin B. Gibberellin C. Ethylene D. Caumarin Answer: ethanol and CO2 What are Cytokinins? Cytokinins are naturally occurring plant growth regulators, eliciting responses necessary for normal growth and development. Cytokinins are involved in cell division, leaf senescence, apical dominance, shoot initiation and growth, phyllotaxis, …

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Vernalization is

Vernalization is A. Growth curve related to light B. Effect of photoperiods on plant growth C. Speeding up ability to flower by low temperature D. Diurnal photoperiodicty Answer: Speeding up ability to flower by low temperature Plant Growth and Development MCQs and Answers –Set-1 1. Which plant hormone helps in breaking the dormancy of plant? 2. Which …

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The harmone which stimulates the flowering in vernalized plant is

The harmone which stimulates the flowering in vernalized plant is A. Florigen B. Vernalin C. Cytokinin D. Gibberellin Answer: Vernalin What is Florigen? Florigen is a special type of hormone used by all flowering plants to control when they bloom. It is responsible for controlling and/or triggering flowering in plants. Florigen is produced in the …

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The plant which needs light period shorter than critical period is called

The plant which needs light period shorter than critical period is called A. Short day plant(SDP) B. Long day plant(LDP) C. Day neutral plant(DNP) D. Short long day plant(SLDP) Answer: Short day plant(SDP) Plant Growth and Development MCQs and Answers –Set-1 1. Which plant hormone helps in breaking the dormancy of plant? 2. Which hormone is formed …

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Who classified the plants into different categories on the basis of photoperiodic responses

Who classified the plants into different categories on the basis of photoperiodic responses A. benthem and Hooker B. cajlachjan C. Garner and Allard D. Linneus Answer: Garner and Allard Plant Growth and Development MCQs and Answers –Set-1 1. Which plant hormone helps in breaking the dormancy of plant? 2. Which hormone is formed in leaves and helps …

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