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Plant Growth and Development

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Advanced Botany

Plant Growth and Development
Organisms and Populations
Ecosystem
Biodiversity and Conservation
Environmental Issues
Microbes in Human Welfare
Strategies for Enhancement in Food Production
Molecular Basis of Inheritance
Principles of Inheritance and Variation
Sexual Reproduction in Flowering Plants
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Respiration in Plants
Photosynthesis
Mineral Nutrition
Transport in Plants
Cell Cycle and Cell Division
Cell-The Unit of Life
Anatomy of Flowering Plants
Morphology of Flowering Plants
Plant Kingdom
Biological Classification
  1. Cut or excised leaves remain green for long if induced to root or dipped in
    1. gibberellins
    2. cytokinins
    3. auxins
    4. ethylene
Correct Option: B

Cytokinins help cells in retaining chlorophyll for longer time. Cytokinins delay the senescence (ageing) of leaves and other organs.


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