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All Physics Chemistry Botany Zoology

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Influences of Ethylene in plants do not include

A. Horizontal growth of seedlings B. Swelling of the axis C. Apical hook formation in dicot seedlings D. Lateral shoot growth

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Explanation

Page number-250

15.4.3.4 Ethylene

Plant Growth and Development

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Ethylene does not perform

A. Promotes senescence and abscission of plant organs especially of leaves and flowers B. Highly effective in fruit ripening C. Enhances the respiration rate during ripening of the fruits D. Overcome the apical dominance

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Explanation

Page number-250

15.4.3.4 Ethylene

Plant Growth and Development

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The rise in respiration rate of fruit is called

A. Respiratory quotient B. Respiratory climactic C. Respiratory incision D. Respiratory succulence

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Explanation

Page number-250

15.4.3.4 Ethylene

Plant Growth and Development

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Respiratory climactic is due to

A. Ethylene B. ABA C. GA D. Auxins

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Explanation

Page number-250

15.4.3.4 Ethylene

Plant Growth and Development

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The function which is not performed by Ethylene is

A. Breaking of seed and bud dormancy B. Initiates germination in peanut seeds C. Improving the internode length of sugarcane D. Promotes rapid internode and petiole elongation in deep water rice plants

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Explanation

Page number-250

15.4.3.4 Ethylene

Plant Growth and Development

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The most widely used compound as source of Ethylene is

A. Ethephon B. Etiope C. Ethyl Methyl carbon D. Epitope

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Explanation

Page number-250

15.4.3.4 Ethylene

Plant Growth and Development

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Ethephon

Which of the following is not correct?

A. In an aqueous solution, it is readily absorbed and transported within the plant and release ethylene slowly B. Hastens fruit ripening in tomatoes and apples C. Accelerates abscission in flowers and fruits D. Promotes male flowers in cucumbers thereby increasing the yield

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Explanation

Page number-250

15.4.3.4 Ethylene

Plant Growth and DevelopmentAnswer- A

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Ethephon

A. Thinning Cotton, Cherry and Walnut B. Promotes female flowers in cucumber C. Hastens the fruit ripening in tomatoes and apples D. All of these

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Explanation

Page number-250

15.4.3.4 Ethylene

Plant Growth and Development

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Abscisic Acid

Which of the following is not correct?

A. Acts as general plant growth inhibitor and an inhibitor of plant metabolism B. Inhibits seed germination C. Stimulates the opening of stomata in the epidermis D. Increases the tolerance of plants to various kinds of stresses

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Explanation

Page number-250

15.4.3.5 Abscisic Acid

Plant Growth and Development

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Which of the following is a stress hormone in plants?

A. ABA B. GA3 C. Cytokinin D. Auxins

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Explanation

Page number-250

15.4.3.5 Abscisic Acid

Plant Growth and Development

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