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Farmer in particular region were concerned that premature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield

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Important Questions on Plant Physiology

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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 22

Match the column-I & Column-II & pick up the correct combination Column-I Column-II

  column-I   Column-II
(a) Replacement of cold treatment (i) Cytokinin
(b) Climacteric fruit (ii) Auxin
(c) Richmond & lang effect (iii) Ethylene
(d) Human urine (iv) Gibberellin
    (v) ABA
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 23
Differentiation of shoot in tissue culture is controlled by
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 24
A hormone involved in low temperature effect on flowering is
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 25
Two vegetative plants of a SDP plant are selected. In each the leaves from upper half are removed. The leafless upper half of A is subject to short days and lower half is subject to long days. In B the treatment is opposite to A what would happen.
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 26
Twining of tendrils is due to
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 27
Two plants are fixed in two clinostat (apparatus used for the study of growth movements) in horizon position. Clinostat A is rotating while B is stationary. What would happen after few hours?
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 28
One of the synthetic auxin is
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Practice Book for KVPY Aptitude Test - Stream SX Biology>Chapter 5 - Plant Physiology>EXERCISE>Q 29
Phototropic curvature is the result of uneven distribution of