Question

Which tissue gives rise to secondary growth?

• A. Apical meristem
• B. Adventitious root
• C. Axillary bud
• D. Vascular cambium

Answer 1

Answer: (D)

Vascular cambium

In dicotyledonous stems, during intra stellar secondary growth, intrafascicular cambium(primary meristem) and interfascicular cambium(secondary meristem) joins together and form into a ring of cambium is called vascular cambium. It is partly primary meristem and partly secondary meristem. Its activity is continuous and uninterrupted. It produces secondary vascular tissues(secondary xylem and secondary phloem) and ray parenchyma.

Secondary vascular tissues, ray parenchyma, periderm are secondary tissues.

So, the correct option is ‘Vascular cambium’.