Is swelling of wood when placed in water a growth ? from Biolog

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Plant Growth and Development

One Word Answers

61. Which hormone promotes the elongation petiole in deep rice plant ?

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Short Answer Type

62. What initiates germination of seed in peanut and sprouting of potato tubers ?

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63. Which hormone initiates flowering in pineapples and mangoes ?

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64. Is swelling of wood when placed in water a growth ?

No, because it occurs by imbibition of water which is addition of water from outside.

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One Word Answers

65. Which is antigibberellin hormone?

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Short Answer Type

66. Which has highest concentration of auxins?

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67. What are redifferentiated cells ?

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68.

Writes notes on following :

(a) Senescence (b) Abscission

(c) Quiescence (d) Vivipary.

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69. List some of the tissues in a woody dicotyledenous plant that are the products of redifferentiation.

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Long Answer Type

70. What do you understand by vernalization ? Describe its significance.

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