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 Absence of the apical bud leads to ______ stem. 

Option: 1

Excurrent


Option: 2

 Deliquescent 


Option: 3

 Culms 


Option: 4

 None of these 


Answers (1)

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3. Trees: These are woody plants that are branched at some height. They have a well-developed trunk. Trees can be of following types:

  • Excurrent or conical trees: These trees have a thick base which gradually becomes thinner towards the upper portion. The branching occurs in acropetal succession. For example, Pinus, Eucalyptus etc.
  • Caudex or columnar trees: These trees have an unbranched stem that has a crown of leaves at the apex, for example, Cycas.
  • Deliquescent/Decurrent trees: Due to the death of apical bud of the stem, the branches and sub-branches grow vigorously and spread in different directions, for example, Ficus, Tamarind, Mango, etc.
  • Culms: The stem is clearly marked with nodes and internodes. The nodes are solid while the internodes are hollow.


 

 

Deliquescent stems have vigorously growing branches due to death of the apical bud. 

Posted by

Ritika Kankaria

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