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  •  Absence of the apical bud leads to ______ stem. Option: 1 ExcurrentOption: 2 &nb

 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.


 

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

Posted by

Ritika Kankaria

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