Question

In which one of the following the differentiation of rhytidome, sap wood and heart wood cannot be traced?

• A. Tectona grandis
• B. Dalbergia sisso
• C. Phoenix dachtylifera
  
• D. Mangifera indica

Answer 1

The correct option is C Phoenix dachtylifera

C. Phoenix dachtylifera

Reason: Sapwood is the living, outermost portion of a woody stem or branch, while heartwood is the dead, inner wood, which often comprises the majority of a stem’s cross-section. You can usually distinguish sapwood from heartwood by its lighter color. The layered outer bark, containing cork and old, dead phloem, is known as rhytidome. In Phoenix dachtylifera, tree rings are not found in trunk. So the correct option will be option C.