Heart wood or duramen is
- AOuter region of secondary xylem
- BInner region of secondary xylem
- COuter region of secondary phloem
- DInner region of secondary phloem
Similar Questions
Assertion: Cambium is a lateral meristem and cause growth in width.
Reason: Cambium is made up of fusiform and ray initials in stem.
Assertion: Cambium is a lateral meristem and cause growth in width.
Reason: Cambium is made up of fusiform and ray initials in stem.
- [AIIMS 1998]
In old dicot stems, a major part of the wood is filled up with tannins, resins, gums etc. This part of wood is called
Definitions / Explanation :
$(i)$ Early wood
$(ii)$ Late wood
Definitions / Explanation :
$(i)$ Early wood
$(ii)$ Late wood
A transverse section of the trunk of a tree shows concentric rings which are known as growth rings. How are these rings formed ? What is the significance of these rings ?
A transverse section of the trunk of a tree shows concentric rings which are known as growth rings. How are these rings formed ? What is the significance of these rings ?
Periderm is produced from
Periderm is produced from